Small block chevy water pump bypass Replace your old worn out hose with this brand new water pump bypass hose. 88894341 Water Pump, Long-Style. Polished water crossovers are designed to fit Chevy big block. Flowkooler's 1684 pump fits the 1969-1980 Big Blocks. some water pumps have a plug in the top and some dont because some were connected to the rad tank instead this is how the GM v-8 engines are anyways. Suggested routing is from the 3/8 NPSF 1967 - 1974 Camaro Slotted Water Pump Bypass Hose Fitting, Stainless Steel Each New stainless steel design slotted bypass nipple fitting for your Camaro. The 98 block indeed does not have the bypass hole in the block that mates with the water pump. For CHEVY #4530/9514X. JEGS Small Block/Big Block Chevy Water Bypass Plate Only for Custom Applications. The 3/8” pipe to 5/8” hose New 1967 - 1968 Camaro ACdelco Short Water Pump for Chevy Small Block models now available. Riser is 1. Water pump is 3. Mar 2, 2020 #1 Fits Small Block Chevy Brodix & Victor Pro-Port Aluminum Heads. Originally, the intake fitting and the water pump fitting didn’t line up properly. Not all Stewart pumps do. S. drive hub pilot) Small Block Chevy Water Inlet Crossover Kit with Bypass. I'm installing this 98 Vortec truck engine in a 76 Nova. I was trying to stuff the hose on the larger fitting and it didn't work. edit: FYI C4 TPI corvettes have a small line from the rear and the intake has a crossover to connect those rear coolant ports. A. between the intake and the water pump. 5 out of 5 stars So I picked up a water pump from local parts house for my 383 "880" block with vortec heads. Provides two bypass hoses from the cylinder heads into the water outlet. Replaces original GM part number 88926095 perfectly. This shows you a option on a big block chevy when you have no provision on your water pump for the bypass hose , such as when using a electric water pump . This is a cast iron, long leg water pump; the same pump that is installed on the GM Performance Parts ZZ4 crate engine. Take the supplied bypass hose and cu to size, to fit between the water pump and intake manifold fittings. Call 800. 15 All accessories mount directly to the water pump housing for tighter tolerancesBracketless accessory mounting O-ring seal to the engineHidden thermostat bypass and heater hose ports with NPT line adaptersLT1 Speedway Motors Water Bypass Kit, 1 Inch, AN6, Small Block Chevy made by Speedway Motors, for as low as $141. Whats the trick with a pipe tap. Now that you fellas pointed out that there's no bypass hole in the vortec head and it's not just the block/water pump surface like I originally thought, I have so many questions. Suggested routing is from the 3/8 NPSF boss on intake manifold to the water pump. jpg. Product Q&A View Now. The bypass also provides right to left side flow balance the coolant pump of pre serpentine belt engines out put favors the right This bypass fitting screws into the top of the water pump to plumb it to the intake manifold; Replaces original GM Part # 3829819; The Camaro bypass hose on the 302 and 327 small block runs from the intake manifold to the top of the water pump. - It did not reduce the vent temps in the cab by any significant amount. Well, I'm wondering if my application will be OK as is. On big block chevy is the coolant bypass hose neccesary?or is it only to help get a little heat for heater until thermostat opens?If it is only for the heat than I assume it is ok for the pump to spin without moving coolant?I guess I always thought it was a relief for the water pump until thermostat These billet aluminum block adapters feature (4) -12 AN O-ring female ports for routing water to a remote mounted electric water pump. 88" deep from mount surface to face of fan. Quick view. Part Number: TFS-30600611. 99. 979. "Theoretically, a water pump bypass hose serves two functions: it promotes quicker warm-up on cold-start, and helps prevent water pump impellor cavitation. H Nipples, Bypass, 1967-72 Chevrolet. V8 with Vortec style cylinder heads earlier blocks have the thermostat bypass water passage from the block directly to the water pump through on the front of the manifold to the 5/8” hose nipple on the passenger side of the water pump. Start with the bypass hose specified for your vehicle--if that doesn't fit, you may have to get creative--possibly with an Oldsmobile V-8 hose. C1 & C2 Corvettes - 327 water pump bypass fitting and thread size? - I'm trying to retrofit one of the water pump bypass fittings pictured below into an aluminum water pump. Along with casting number changes through the years, Computing water pump, radiator, and passage flow rates against BTUs being produced is complicated engineering, - In the case of Chevy Small Blocks, a lack of a heater bypass circuit. Your Account. :beers: 1. i. I know I have posted about this before but I really need to understand. GM built millions of small blocks, big blocks, and V6 engines with the cooling system set up just like that. Heater Hose Nipple Set for 1967-1968 Small Block Chevolet Engines $17. 1969-72 SMALL BLOCK RADIATOR HOSE. bypass hose. Without a buypass the opening of the thermostat would be delayed and the engine could develop hot spots or even steam pockets before the stat opens. Thanks in advance and sorry if this pisses anyone off but i'm just a home mechanic and learning all the time. Tack the gaskets to the back of each side of your new water pump, aligning the gaskets to the bolt holes. New rubber upper radiator The bypass hose on my mtr is kinked, I don't know about "other motors" but the small block Chevy uses a drilled passage between water pump and block. Howards roller cam . Use reverse flow water pump from 87-92 305/350 Camaro, C/K10 pickup or 87-92 Caprice. 5. Check all hose clamps fasteners and wiring being sure everything is tight and secured safely. Not Yet Reviewed. We never used them on big block chevys. I need to plug the bypass and I want to pipe plug it as opposed to frost pluging it. Part Number: 555-51100K. They gave me this pump with 2 holes on each in mind that GM first and foremost feeds the final assembly line and this can result in oddball mixes where a finished bypass block has a On the street the SBC uses a bypass system that supplies an amount of hot coolant to the pump hub. ) B/B Crossover 1 1/4 " hose barb with bypass. See our line of BBC parts. fittings are for the heater hoses for the water pump and the intake manifold. Small blocks have a built-in bypass. JEGS 28035 - Black RTV, Temperature Resistant up to 625 Degrees F [3. as already said, it works fine as it is. Plumb it in similar fashion to a big block Chevy 396 - 454 or small block MOPAR 318 - 360. Small Block Chevy. I'm wondering what will be the Hi, According to measurements I took of the water pump onto my 383 chevy stroker motor it is a chevy big block short water pump! I measured 5 and 13/16 inches height and according to informations found on a web site a short pump for the small block should measure 5 and 5/8 and the one for the big block should be 5 and 3/4now my measurement of 5 and Small block chevrolet, not including 400 ci. Talk to the experts. What is a good pre-molded bypass hose that looks half way decent for a long water pump/BBC ? Big block - Air Gap manifold - long water pump with one of the hoses I listed above Attachments. 00 amps, Aluminum, Black Anodized, Bypass Port, Chevy, Big Block, Each. Part Number: PRO-141-674. Available for small-block or big-block engines, the nipples can be purchased individually or as a pair. 1968 Camaro Z28 Water Pump Bypass Heater Hose Fitting Intake Manifold Nipple, 90 Degree Elbow 1967 - 1968 Camaro Water Pump Non-Vortec small blocks have a built-in passage on the right side of the water pump mount. The old block has three bolt holes on the left side holding the pump on and they all go into the coolant and the newer water pump only uses the top two leaving the bottom one unused and exposed . The Kits Includes: 3" STRAIGHT FITTING WITH 3/4" HOSE NIPPLE AND 1/2" PIPE THREAD FOR THE WATER PUMP. The hole you always wondered what it was for. 117. Happy Motoring, Harry Email 1969-72 Double Groove Water Pump Pulley, Small Block or Big Block. This is the correct water pump for all 67 - 68 SB Chevy Camaro models. 7l. 90 degree FITTING WITH 5/8" NIPPLE AND 1/2" PIPE THREAD FOR THE INTAKE MANIFOLD. Add to Cart. 07-21-23 09:26 AM - Post# 2860541 what is the purpose of the bypass hose from The Zips SBC Water Pump Riser Kit raises the location of the water pump 5. 1 Year Limited Warranty. Suggested routing is #SBC#Vortec#FloridaI plug up coolant bypass on old style gen 1 350 chevy. D. What's the secret to installing the intake manifold-to-water pump bypass hose on a BBC and making it look like it fits properly? I've repeated the installation a number of times using hose of various lengths and I still end up with a kink or unsightly bend in the middle of the hose. 625"L Hose(1) -06AN x 9"L Hose(2) Water Pump Adapters, Remote Mount, Billet Aluminum, Natural, Chevy, Small Block LS, Kit. Most SBC water pumps have a threaded port out the right side (passenger side) and a port pointed straight up. I thought the threads were 1/2 - 14 NPT so I These billet aluminum block adapters feature (4) -12 AN O-ring female ports for routing water to a remote mounted electric water pump. Part Number: SUM-120116. Big Block Chevy Electric Pump; Remote Inline Electric pump 20 GPM; Starter for Chevrolet; Flexplate for Chevrolet; Remote Inline Electric Pump 55 GPM; GM LSx Electric Pump; i'm gonna guess that this is simply not having any experience in working on a big block Chevy engine. Model specific subject matter experts, classified ads and more. Chevy Forums FREE technical assistance for your restoration and repair. Route heater hoses as you would with any old Gen 1 small block. › Find CHEVROLET Chevy small block Gen I Water Pumps, Electrical and get Free Shipping on Orders Over $109 at Summit Racing! $20 Off $250 / $40 Off $500 / $80 Off $1,000 - Use Promo Code: GETREADY. On serpentine belt drive systems the tension/idler pulley may have to be re-located CAUTION: Seal failure will occur if pump is operated without water or coolant in the system or the pump. Fits most plumbing applications. . Anyone ever try plugging it . One is a cast iron closed fin impeller design, with the rear of the fins closed off. I have a 1970 Chevelle with a small block. Add be aware that chevy small block water pumps can be either standard or reverse rotation designs, the 1984-91 corvettes use a reverse rotation pump. " ISn't that the same passage (water jacket in the block) as the one the water pump flows into? Wouldn't that just circulate the coolant in a small circle at the front of the block?? IE :Water pump, into the block, down slightly, out of the block, back into the water pump. No need to run the bypass hose in your case and deleting the hose will give you a cleaner appearance under the hood as well. Send Private Topic View Profile. Jebby Back in the mid 60's when I was the truck mechanic's helper at a Chevy dealer, the water pumps came with a small plug to block that hole if the engine had a by-pass hose. An increased vane count and a reduction in the plate-impeller clearance achieves greater flow rates, higher head pressure and a more efficient flow than other OEM water pumps. Find all your SBC parts. Click image to zoom. Small block Chevrolet engines used the “short leg” water pump on passenger cars through 1968 and on all Corvettes. Now you know what the little hole is for on the water pump-to-block gaskets. If the manifold is used on a 1996 and later Vortec engine that does not have the in-block bypass passage, you must route a thermostat bypass hose from the water bypass port on the front of the manifold to the 5/8” hose nipple on the passenger side of the water pump. an old trick is to tap it and put a pipe plug in it, then drill four 1/8 inch holes in t/stat, this is good for ten degrees off your temp Plumb it in similar fashion to a big block Chevy 396 - 454 or small block MOPAR 318 - 360. cars, light trucks thru 1972, 1969-70 350ci Corvettes (5/8” dia. The bypass hose as it has been referred as is an external 1/2" ID water line that runs from the top of the water pump to the front of the intake All small block Chevys have an internal bypass, with the exception of the 96 up 1956, and 1957 Chevy owners and enthusiasts. 050" too short to hit the block. , other makes and models differ slightly or completely. Water Pump, Electric, 35 gpm, Die-Cast Aluminum, Black Powdercoated, Red Bowtie Emblem, Chevy, Big Block, Each. In 1969, most Chevrolet small blocks and big blocks, EXCEPT CORVETTE, went to the "long" water pump which still used a 5/8" shaft. There are two types of pump impeller used for Chevy water pumps. Seems without any gasket the pump is . I can't see how the water is flowing through the heads with just that one At the Super Chevy Show today, we asked 10 seemingly knowledgable people for the answer to this question. Can be used on any big or small block Chevy V8 with 12 ¾” Water Pump, Electric, Port Adapter Flanges (22) Engine Steam Line Fitting, Male Connector Type, -4 AN Size, Aluminum, Black, Chevy, Small Block LS, Each. 00" higher in the engine bay. Eliminate your power robbing circulating pump! Constructed of 316L stainless steel. 3. good luck! small Flowkooler's 1974 pump for the GM Small Block Long shaft has a CNC machined billet impeller designed with an increased vane count and a reduced plate-to-impeller clearance to achieve greater flow rates, higher head pressure and a more efficient flow than other OEM water pumps. 1967 - 1968 Water Pump Bypass Hose for Small Block Chevy and Z28 models. 1965 Chevy Biscayne 460cid, 10:1cr, Brodix RRO 270, "Old Eliminating your power robbing circulating pump has never been easier or more attractive. I will be running a 283 cubic inch engine in my 55 Chevy Belair. He The bypass system is incorporated into the engine block and water pump. . My experience with the bypass hoses was only on the small block. Chevrolet Performance customers are responsible for ensuring their use of Chevrolet Performance complies with applicable federal, - It works (it bypasses the heater when there is vaccum on the line) - It didn't seem to affect the engine temp at all. 70 Gs "Any small block engine, regardless of year, that uses Vortec heads, will require an external coolant bypass line from the intake manifold to the 5/8 hose nipple on the water pump (passenger's side). Free Shipping This is a cast iron, long leg water pump; the same pump that is installed on the GM Performance Parts ZZ4 crate engine. Length 4", Width 2-3/4", Height 2-1/2". BBC short water pump; intake and water pump connectors lined up, no problem. MasterPro Water Pump - New - A152190. d. Includes brackets. 0 out of 5 stars Gen III/IV LS, Billet Aluminum, Kit includes barbell, Oil pan bypass delete, and pickup tube brace. Deuce Roadster (and the instructions) said that you need to run a hose from the water pump heater fitting to the head pipe plug around 454 block bored . Login. this allows the fan belt powering the water pump to travel in either direction provided the correct matching water pumps used, this DOES NOT change the direction of coolant flow in the engine block which in the C3 Tech/Performance - Block coolant bypass hole plugged! - Hello folks, that's me again. This same style water pump was also used on all 55-68 small blocks used in all other Chevrolet passenger cars with small blocks. You will note that all these conditions address insufficient coolant flow or a radiator of insufficient size. lbs. In the instructions it says to drill and tap for a pipe plug to block it. 705 35 Zora Arkus-Duntov's Iconic One-Off Corvette SS Project XP-64 Heads to 957 27 Opinions on these C1/C2 for sale. Bypass hole can also be used for temperature sender. Small Block Chevy Tru Trac - 13220 / 13120 17 Figure 12: Install Water Pump Pulley Apply Loc-Tite to the threads of the four 5/16-24 x 1/2” socket head cap screws. Shop for the best Bypass Hose for your vehicle, and you can place your order online and pick up for free at your local O'Reilly Auto Parts. i still got a small bypass, cuz i got 3 holes drilled in the thermostatso that's pretty small compared to 1969-72 Double Groove Water Pump Pulley, Small Block or Big Block. I just spoke with edelbrock about the situation and the tech said to just cap the ports. Stewart Stage 1 water pumps have a bypass. With the Edelbrock Victor Pro Series water pump installed you can use normal small block Chevy thermostats or restrictor plates with a standard thermostat housing Bypass Hose Coolant / Antifreeze - Vehicle Specific Coolant Bypass Pipe Coolant Hose Kit 1 - 24 of 1894 results for Water Pump Compare Filter/Refine. com FREE DELIVERY possible on eligible purchases Skip to Small Block Chevy Water Bypass KitMade in the USA Includes:(1) Thermostat Spacer(1) -06AN x 10. , takes water from the bottom or radiator into the waterpump and is pumped into the front of the block and around the cylinders were it can migrate under pressure through the holes in the head gasket and head and then travels along to collect at the front of each cylinder head to continue through the front of the intake manifold to Buy Chevy Small Block Electric Water Pump - 35 GPM, Chrome Aluminum, 283, 327, 350, 400, SBC: Water Pumps - Amazon. The 3/8” pipe to 5/8” hose nipple I pulled the water pump the other day and mic'd the distance between the billet cover and the block. High Quality Water Pump Pulley Small Block Chevy Short Water Pump 2 Groove The center hole is 5/8" This high quality Machined Aluminum Pulley will enhance the look of your engine at This 1965-1974 Corvette water pump bypass hose has the correct 90 degree bend and is a direct replacement for your Big Block I. If you've ever seen a small block water pump On the passenger side of the engine there is a lower hole on the water pump outlet on the block. com FREE DELIVERY possible on eligible purchases Big title, small hole. I have a power steering gear box that is bigger than the '95 Jeep Grand Cherokee. 2. Just a couple 1/8" holes will do fine. Vortec SBC don't have the traditional coolant bypass, this video explains the difference and what you can easily do about it when using Vortec heads without C1 & C2 Corvettes - 327 water pump bypass fitting and thread size? - I'm trying to retrofit one of the water pump bypass fittings pictured below into an aluminum water pump. Trank said: I know the subject has been cover A LOT, but I can't find an answer to my question. Made in Wichita, Kansas from aerospace grade, USA produced, billet aluminum Get the Best Performance with JEGS Water Pump Bypass Hose Fits Select 1965-1968 Chevrolet Models 90767 parts at JEGS. Description: 620-300100: Big Block Chevy Water Inlet Crossover Kit with Bypass Big Block Chevy Stainless Steel Water Inlet Crossover With Bypass . Early 1965 through 1968 Mark IV engine I don't know about "other motors" but the small block Chevy uses a drilled passage between water pump and block. 4. Accessories for Small Chevy: Water Pump Spacers: Thickness . Second is a stamped steel impeller, with an open back between fins. I installed an Edelbrock performer intake manifold and i just want to know the torque specs for the water outlet housing? I've heard 15 ft. thermostat housing. Doing so also cuts Reworking a small block's bypass system can pay off with improved cooling. $12. Add : Our Price: $13. The only angle one they have says it's for a small block. 3L V6, Each. OK so a water pump has the normal "large" inlet and outlet. It's the passage that uses the lower hole on the passenger side of the water pump. Chevy 230/250 Inline 6 Cast Iron Water Pump: OE style impeller delivers stock coolant flow rate Hardened bearing shaft for even wear and durability the only small block heads that ever had any sort of a "bypass" in them was the 93-97 L99, LT1, and LT4 with the reverse cooling setups. Big block water pump by pass (Topic#373487) Halnas66 Poster Posts: 89 Reg: 07-19-20. Kit Includes (1) Thermostat Riser 1 Inch (2) SBC Thermostat Gaskets (4) Pipe Adapter Fittings3/8" pipe to straight -6 AN fittings (2) Push-On Hose End fittings-6 AN female to push-on hose barb adapter (2) 90 Degree I have a 1970 Chevelle with a small block. The highly polished 316L stainlesssteel construction locates all of I can understand the need to do it on a big block (if you don't use a coolant bypass hose on the water pump-to-intake, the coolant has no where to go on those rear cylinders), but don't see an advantage on a small block that has an internal bypass cast into the block -maybe in some high endurance application, The bypass is necessary to allow a small amount of water to circulate when the thermostat is closed. 99 water pump crossover small block chevy. 1967 - 1968 Camaro Z28 Water Pump Bypass Hose, Small Block Chevy Our Price: $19. Hope this helps. 4M My experience with the bypass hoses was only on the small block. Electric Water Pump, Fits Small Block Chev, High Flow Style, Polished Finish This model does not accept heater or bypass hoses as a standard. Type II Class II military grade anodize surface coating. The port on the block is not drilled through to the water jacket. 56 . Cannot be shipped Internationally. The bowtie block doesn't have 03-04-15 09:18 AM - Post# 2528032 In response to scrambldcj8 From GM: "Any small block engine, regardless of year, that uses Vortec heads, will require an external coolant bypass line from the intake manifold to the 5/8" hose nipple on the water pump (passenger’s side). In a small block, there is a passage for the water in the mounting points, BBC's don't have this The heater could would effectively be a "bypass", but if it is pluuged off, the bypass is plugged off, and your water pump is making The heads have zero to do with coolant bypass. 75" deep to pump mount surface. Then, apply sealant to the water pump side of the gasket. in later years, they started putting the water outlet for the heater hose on the passenger side rear of the intake for SMALL BLOCK WATER PUMPS, PULLEYS AND COMPONENTS . If you have a small block Chevy and the engine block has the extra bypass hole, you will need to tap the Install 1 bypass hose fitting into intake manifold and one into water pump. But I will be using the old style water pump and v belt. Does anyone know why there is this unused port? Are you talking about this hole below the mounting Just finished up a small block 406 and was thinking about plugging the little bypass hole in the water pump to aid low speed cooling flow. Add : Our Price: $69. The 327 high performance engine, RPO L79, also incorporated a hose from the top of the water pump to the intake manifold as a second bypass. Place the water pump pulley to the water pump and thread the cap screws through pulley and into water pump pulley flange, tighten firmly (28 ft/lbs. Aluminum heads and an Airgap manifold Any small block engine, regardless of year, that uses Vortec heads, will require an external coolant bypass line from the intake manifold to the 5/8" hose nipple on the water pump (passenger’s side). I found out the stewart pump doesn't have the bypass hole on the right side. 0 out of 5 I know I have posted about this before but I really need to understand. Includes bolts and gasket. Contact Us. $33. Red wire is positive and black wire is ground or negative. Any small block engine, regardless of year, that uses Vortec heads, will require an external coolant bypass line from the intake manifold to the 5/8" hose nipple on the water pump (passenger’s side). Also, a small block chevy has no bypass. I have a spare 350 block that I practiced on with a pipe tap but went to far and the the plug just threads through. Big Block Chevy. Flanges are 1/4" to assure a good seal. I have looked at a lot of info on the web about this and there are a lot of differing opinions out there! Is there a general There is a bypass port on the pass side of the water pump. I have to either cap the ports on both of those or somehow create a bypass. it is pumped into the front of the block on both sides by the pump to flow around the cylinders, and is restricted from immediately flowing up into the head by the small size water holes in the head gasket. Small Block Water Pump Bypass Hose 360 LA? Thread starter coalman; Start date Mar 2, 2020 - coalman Well-Known Member. Big Block Chevy Water Inlet Crossover Kit with Bypass Thiskit represents one of the cleanest installations of a water inletcrossover system found anywhere. Just plug the heater hose holes. 0122, 7am-10pm CST, everyday. 1 1/4"hose barb fitting with bypass. Plumb your aftermarket cylinder heads for additional cooling. the old small block has the t/stat bypass hole on the front of the block, it goes from the block to the water pump through the gasket. Part Number: ICB-551564 4. And then you can plug the unused threaded outlets in your intake and your water pump. Come join the discussion about restoration, engine It shouldn't be any problem finding a water pump with the bypass connection on top and there should be another outlet for Post,Global West stage 3, Small Block, Small Journal 337cid. The instructions state that if no heater is plumbed into the cooling system, then a bypass setup should be connected Buy LS LS1 Heater Core Delete Hose - for Water Pump Coolant Bypass (551699) from ICT Billet and browse through a huge selection of Made in USA LS/LT swap and conversion parts, manufactured at the state of the art plant. For Corvette small blocks, ALL 55-70 Corvettes use a "short" water pump with a 5/8" shaft. CURRENTLY UNAVAILABLE 1967 - 1968 Camaro Z28 Cast Iron Thermostat Housing Water Neck, with Part # Stamping 1967 - 1968 Camaro Z28 Water Pump Bypass Hose, Small Block Chevy 1967 - 1968 Camaro Power Steering Pump Pulley, Single Deep Groove Cast 3873847 1968 Camaro Spark Plug Wire Set, coded 1-Q-68, with SB I think on small block Chevys the water flow goes into the block from the front (pump), through the block to the back, up into the heads at the rear, then through the heads and exits the heads into the intake water outlet. Works great for your intake or water pump. Then the water pump backing plate to the mounting surfaces. the bypass is the extra hole in the block at the water pump. The fittings are locked up so pipe plugs are out of the question. I didn't notice a difference either way. Rotation These billet aluminum block adapters feature (4) -12 AN O-ring female ports for routing water to a remote mounted electric water pump. 1969-72 Big Block Bypass Hose. passenger side water pump mounting flange. coolant flows from the intake bypassing the thermostat through the hose to the water pump, then block, then intake. $202. Just as another note, the newer small blocks using Vortec heads don't have this passage so Vortec headed small blocks also need the heater core as a bypass or to use On a 1969 stock small block is it OK to block off both heater fittings on the block? I'm talking about the ones on the intake and water pump. Just a bit at a time till its flush? As the title suggests I need to put a reverse rotation water pump ( serpentine belt ) on my 77 SBC I'm putting in a 87 S10 . Since we began, we’ve developed Also I plug the block bypass so the smaller lines are the new bypass, think the two small lines equal just about the same area with maybe an 1/8" hole in the T-stat or w/o I did the math awhile back. A must-have. Every BBC with long water pump had a kink, some worst than others. Don't forget you need fittings for the bypass hose too. I may be wrong, but if you run those bypass hoses, you may be letting your heads run hotter. Water from a standard pump goes in the large holes the small hole goes back to the intake side of the pump to circulate coolant in the engine when the thermostat is closed. 00. i'm sure GM saved SBC Billet Drivers Side Alternator Bracket for Long Water Pump Will work with V-belt pulleys only. I installed an Edelbrock performer intake manifold and i just want to know the torque specs for the water outlet housing? Cylinder Numbering - Firing Order - Distributor Rotation - SB Chevy 267 305 327 350 400 Cid . I've read about water pump bypass and overheating problems with the 454, but not with the 350. 67 Chevelle Malibu SS Cdn Born 283 / PG / A51 468/TH400 2,500 stall / S60 3. 50 Relay Wiring Kit upgrade WIK346. Small Block Chevy Port Inlet with Bypass: 520- 350WS: Small Block Chevy Starboard Inlet with Can anyone tell me what size the. Under normal circumstances, when an engine is cold, a bypass in the water pump housing allows #SBC#Vortec#FloridaI plug up coolant bypass on old style gen 1 350 chevy. 95 . Use with 90 degree fitting RAD-823 for a perfect fit. Apply sealant to the engine block and bolt the water pump into place. for aluminum and 30 for cast iron. The hole connects to the input side of the pump and mixes hot water from the block with the cooled water from the bottom of the radiator. Medium Duty GMC and Chevrolet truck small blocks had a water pump bypass. This is the correct water pump for all 69 - 76 SB Chevy Camaro models. New 2 groove water pump pulley for cars with long water pump. Part No. 050 LS112, Speed The serpentine system we are using now is from a 1991 chevy 350 truck Find Meziere 300 Series Electric Water Pumps and get Free Shipping on Orders 300 Series, 55 gpm, 12 V, 12. If drilling a hole in the thermostat and running a standard heater system is not a sufficient bypass, how do so many people, such as myself, get away with it? My previous setup had a short water pump, now I have a long water pump with the motor I'm putting in. Designed to fit Big Block and Small Block Chevrolet Engines. Part Number: MEZ-WP301UP. 67 out of 5 stars. New rubber upper . Sort By: Compare. Jump to Latest Search for a Water pump BYPASS hose for a LONG water pump . Picture is accurate, before buying, please refer to the picture. This Quick view. Could have sworn my K5 even came with a shutoff valve to block the heater hoses when AC was selected, but it's long gone now. 5. Next time you see a bare block run a piece of soft wire in the hole below the lower bolt on the passenger side. 1969 GTO Convertible - Restomod Underway 1983 El Camino SS - Original Choo Choo w/ '96 LT1/4L60E Water Pump Bypass Hose; 1969-1972 Chevy Chevelle, El Camino; 1970-1972 Chevy Monte Carlo; 1969-1972 Chevy Camaro; 1969-1974 Chevy C/K Series Trucks; 1969-1974 Chevy Full Size; Big Block Chevy; Black Rubber; Sold Individually There seems to be different interpretations for the correct heater bypass routing when the heater is no longer used. from the "small" water pump outlet to the hole (with a 1/2" NPT x 3/4" hose fitting installed) on the passenger New 1969 - 1976 Camaro Long Water Pump for Chevy Small Block models now available. Drilling the Tempered with the old adage that Ford never spent a dime he (they) didn’t have to, isn’t the thermostat bypass on the small block Ford cooling system (the little 90° hose that runs from the thermostat housing to the water pump) a bit of a redundancy, given that the heater also allows the same circulation of coolant via essentially the same path before the thermostat opens? No drill necessary 1/8th inch tap and plug do the trick Chevy 350s have the bypass built in to the water pump, which is the extra hole under the right side outlet in this photo Plugging the heater outlets is fine on these cars without other mods. 1976 Chevy Nova 2017 Harley Davidson XL1200 Sportster 2018 Nissan Versa Note Email Report They have a bypass hose at the water pump, so the heater fittings can be plugged? Email Report Rick_L All aluminum intake manifold and Z/28 molded bypass hose for 67 - 68 Camaro. Re: BBC water pump by-pass hose needed? 08-13-05 08:50 AM - Post# 756901 In response to r66ss I just noted that in the Bill Mitchell catalog all of their BBC motors (which they claim are pump gas street/strip) have no provision for a water pump bypass hose. 060" over with Edelbrock aluminum heads, victor junior aluminum intake, AED 1050 carb, about 12. Run each of the four bolts up to a snug fit; then tighten the water pump housing and elbow fasteners Weiand Team G water pump part numbers and applications covered by these installation instructions are listed below: Small Block Chevy Short P/N 9208 – Action Plus SBC Short, 1955-68 pass. The second is the heater core circuit which routes from various places on the engine to various schemes to the intake side of the water pump. On a small block, the extra small hole on the water pump mount goes up to passenger deck surface and there is another pass-through hole in the head leading to the coolant jacket. 1964-1972 Chevelle Heater Hose There is another bypass in the right head to block but it is too small to be very useful in this regard. Chevrolet's Mark IV big block 396/402/427/454 engine uses only the hose for its bypass system. collector tethers blocks. 1967 - 1974 Small block chevy with stock pump and performer intake. Suggested routing is Small Block Chevy short shaft water pump has Flowkooler's 16 blade skip vane CNC machined and military grade anodized aluminum impeller. Suggested routing is In order to eliminate the funky temp readings you are seeing, you need to have the coolant circulating from the passenger side cylinder head to the water pump, either directly with a bypass hose or thru the heater system. it has the extra hole. Replaces original GM part number 88926106 perfectly. trans dapt neck thermostat housing. every other small block had the same cooling passages in the head, and only the 96-99 vortec 305's and 350's didn't have the water pump bypass drilled in the block for some reason or another. 570" lift 227/233 duration @ . On big block chevy is the coolant bypass hose neccesary?or is it only to help get a little heat for heater until thermostat opens?If it is only for the heat than I assume it is ok for the pump to spin without moving coolant?I guess I always thought it was a relief for the water pump until thermostat JEGS Small Block Chevy Water Bypass Kit With Water Neck. If you've ever seen a small block water pump with a 1" pipe plug right in the top of it, that's the pump that was used. one Water bypass kit. I still doing my cooling system overhaul, now I realized that the small hole under the bottom passenger side water pump bolt (coolant bypass) is plugged with white cement or something similar. No Camaro ever used an aluminum radiator or separate expansion tank. Although most small-block Chevys have internal water pump bypass passages, the big-blocks do not, so in theory an external bypass hose is required. - It probably was not worth the trouble. Estimated Billet Aluminum, Polished, Chevy, Small Block V8/4. Part Number: 555-51107. These questions are related to a Big Block Chevy application The reason you don't need it on a traditional SBC is that it's internal to the block/heads/water pump. X-cpe , Sep 28, 2023 SHARE POST #15 This is a cast iron, long leg water pump; the same pump that is installed on the GM Performance Parts ZZ4 crate engine. 0 I have decided to bypass my heater core and run a hose from the intake manifold to the water pump. The 1/8" NPT Port can be used to connect to the steam tube plumbing. This is on a 69 big block with the long water pump and an Edelbrock performer. Shopping Cart (0) HM on Facebook. 99 $27. = 3/4 inch. Some owners tried looping the hose in order to avoid a kink. Part Number: CMB-12-0018. 1965 Corvette Period Correct Block number. I have used this pump and found no advantage blocking the bypass and drilling the thermostat. Standard 1-1/4" Slip-On Port Entry Stainless Steel Water Inlet Crossover Kit with Bypass - Small Block Chevy. 570/. 5" WPS101-1. A "T" fitting with two 1" hoses running up to the adapter. Joined Aug 6, 2015 Messages 1,223 Reaction score 135 It all depends on your water Two -12 AN flare fittings and a 3/8" NPT bypass port. I tried to run a 5/8 hose from the intake manifold fitting to the 3/4" fitting on the water pump and no luck. 9" WPS101 Thickness 1. Does anyone have any solid data concerning the benefits of using a 4-port water bypass on a small block chevy manifold? Does it help equalize cylinder temperature? Release I'm changing the camshaft in my SBC and I noticed that the water pump bypass has been blocked by a PO. Impeller Material: Metal. 7 KB Views: 1965 Chevy Biscayne 460cid, 10:1cr, Brodix RRO 270, "Old School" 229/241, AED 950 HO, Air Gap, 1-7/8 headers, 3 Re: BBC water pump by-pass hose needed? 08-13-05 08:50 AM - Post# 756901 In response to r66ss I just noted that in the Bill Mitchell catalog all of their BBC motors (which they claim are pump gas street/strip) have no provision for a water pump bypass hose. Water Pump Return Line on Big Block Chevy. They used an adapter at the thermostat housing. The Zips pump instructions indicate that this system needs a bypass setup to operate correctly. Part Number: MEZ-WP300SP. I told them it was for a 1998 chevy 2500 5. So normal factory engines really have two bypasses, one being pump to block in the case of the BBC a hose to the manifold, the SBC uses a passage cast into the block and pump under the right side pump horn. SMALL BLOCK WATER PUMPS. 1 compression, and a custom ground Howard's cam (have numbers if anyone wants to know) and it's getting The base-engine (iron intake manifold) Corvettes used the "608" water pump with no bypass fitting at the top, and the optional small-blocks with aluminum intake manifolds used the "326" water pump with the bypass fitting at the top. No need to run the bypass hose in your Small Block Chevy RPM Air Gap Manifold For 262-400 c. Fits 1964–1972 Chevrolet Chevelle, 1964–1972 Chevrolet El Camino, 1978–1987 Chevrolet El Camino, 1978–1983 Chevrolet Malibu, Small Block Chevy short shaft water pump has Flowkooler's 16 blade skip vane CNC machined and military grade anodized aluminum impeller. If you look at the stock water pump you can see the lower hole connects to the out flow, so water is pushed into the block through the hole via the pump. The question: is the port on the side for a heater hose and the top intended for low pressure applications like a temperature sensor or can either one be swapped? My assumption was that the side is for the heater hose only. On small block Chevys the bypass is the extra hole drilled into the waterpump leg. Wire water pump up to a 15 amp fuse and to an accessory relay rated to at least 15 amps. Connect your heater hoses with these high-quality water pump nipples from OPGI. Description: Product Features Zinc Plated Hex Head Includes 4 Bolts And 4 Washers Fits Small Block Chevrolet With Short Water Pump Made In The U. what is the "small" outle (or inlet) on the top of the pump for? I replaced the stock iron intake manifold with an aluminum Edelbrock intake manifold and I routed the hose the same as before. The bolt holes all seem deep enough, but I will double check them once the new pump arrives and I get back into it. User Info. Long water pump; there is not suppose to be a by-pass hose between the intake and water pump like the short water pump. I could continue using the short water pump and v-belt system but I figure I might as well convert to serpentine if I have the motor out. Save Share 1965 Chevy Biscayne 460cid, 10:1cr, Brodix RRO 270, "Old School" 229/241, AED 950 HO, Air Gap, 1 On some engines, such as classic Chevy small-blocks, the bypass is internal; on others, such as your big-block Chevy, the bypass is external. Constructed from stainless steel with tight radius bends to clear our cast aluminum timing chain covers. Tube] Water Pump Bypass Hose for 1965-1968 Chevrolet Full Size [Big Find CHEVROLET Chevy small block Gen I Water Pumps, Electrical and get Free Shipping on Orders Over $109 at Summit Racing! $20 Off $250 / $40 Off $ Water Pump, Electric, Aluminum, Red Powdercoated, Coolant Additive, Chevy, Small Block, Relay, Kit. Side cooling ports allow direct cooling to engine block for high load applications Beneficial upgrade for engines with aluminum cylinder heads to cool siamese center ports High-quality short style reinforced aluminum sbc short water SMALL BLOCK CHEVY ELECTRIC WATER PUMP P/N 63557 other accessories, a shorter drive belt will have to be used to bypass the water pump drive. Includes braided hoses, 1/4" NPT x -06AN adapter fittings and anodized billet aluminum spacer plate. Buy JEGS 51100 Small Block Chevy Water Bypass Kit: Water Pumps - Amazon. 8 oz. Part #: A152190 Line: MWP. Joined Aug 6, 2015 Messages 1,223 Reaction score 135 Location Texas. American made with quality far superior to any other performance aftermarket company, we build our water pumps with pride right here in the USA. C2 C3 ENGINE These thermostats also have a bypass valve that allows a small amount of coolant to circulate before fully opening. It has a CNC machined billet impeller designed with an increased vane count and a reduced impeller clearance to achieve greater flow rates, higher head pressure and a more Small Block Water Pump Bypass Hose 360 LA? Thread starter coalman; Start date Mar 2, 2020 - coalman Well-Known Member. bky vuohso gpa feldng vixux rczfem oxhdvq cwxz rnqe dnblfcfh