502 MAGNUM/ ENGINE 7. The 1987 Chevy 454 engine displaces 454 cubic inches, or 7. If the thermostat is. 83 in (46 mm) intake valves (instead of 1. I need the torque specs for the bolts and the pattern if someone has that. Holley products for GM's popular LS engine are dominating the LS scene as well. Clean all gasket surfaces completely. Re: Torque sequence & pound spec's-Intake manifold gasket re Nov 25 2011, 9:18pm This will not sound very professional, or precise, but it's how I have done it in the past and have had no problems. 7L engines 20. 7L engine Upper intake manifold with a new gasket on the lower intake manifold and torque the bolts, in sequence, to: 105 inch lbs. a torque wrench. at 4,400 rpm, this is the top of the line for factory GM crate engines. So-called "long-ram" manifolds were once used to provide a longer intake tract, which helped to boost low-end and mid-range torque. Intake manifold bolt torque sequence 2. We are currently updating our data base, some prices and stock may have changed please call, email or contact us on our live chat for price and availability confirmation. 4 454 upper intake manifold upper intake tighten pattern - Chevrolet 1999 C2500 question Intake manifold torque specs. Over tightening the intake manifold bolts may crush the intake manifold gasket or crack the manifold. Search Car Torque Specifications by Engine or Model. So i replaced the MAF, same problems. The intake can not effectively lower the torque curve below the cam's curve. Mondello Performance manufactures and sells quality custom Oldsmobile performance parts and engines. body area of the upper intake manifold on 1995-1999 GM 3. 12464484 Upper manifold, 502 Ram Jet. Torque specs Find the most up-to-date torque spec listings in electronic format. All our Chevrolet engines come with 1-year warranty, FREE shipping and 30-day money back guarantee. 20 The L78 was the only 396 adorned with a lightweight aluminum intake manifold—the Winters cast dual. This is a new polished aluminum high rise single plane intake for small block Chevy. g engine, electrical, drives, cooling, exhaust, fuel system. It's the place to learn and share "tricks of the trade," find proper diagnosis and installation instructions, and enjoy easy access to parts reference. About 50 percent of the measured torque is used in overcoming bearing friction. It is a Gen 6 454 MPI. Not a hard fix and it is a common issue. I have used propane, carb cleaner, and wd40 to try to locate leaks. We are trying to keep the air as cool and as dense as possible while passing through the turbo and intake manifold and on into the combustion chamber. How to Install a Head Gasket. This video will teach you how to install an intake manifold on a 454 big block engine. Chevy Sbc 350 Intake Manifold Gasket Set 1205 2. Intake manifold bolt torquing sequence Component Nm Dipstick guide tube to cylinder head 10 Toothed belt guard to cylinder head 10. Also, the big blocks still have 12 intake manifold bolts, the newer small blocks only have 8. We do our own assembly on our heads. Buy Fel-Pro MS95899 Plenum Gasket Set: Plenum Gaskets - Amazon. 3 vortec intake manifold?. The LS4Store provides resources and links to both OEM / Replacement and Aftermarket / Performance-Oriented parts for GM W-Body cars with LS4 engines, including the 2005 - 2008 Pontiac Grand Prix GXP, the 2006 - 2007 Chevrolet Monte Carlo SS, the 2006 - 2009 Chevrolet Impala SS, and the 2008 Buick Lacrosse Super. Torque Specs. 4L MPI, and the 385 Hp 454 Magnum MPI Sterndrive Model and 380 Hp 7. First Guess: The intake ports in the Vortec 454 won't support anything over 5K no matter what intake manifold is hung between them. the carb, the manifold had the center divider cut down about 1 inch. Next step up, the 390-hp 454-cu. - Disconnect power steering lines from right engine support. Most experts agree that the problem stems from GM's 'DexCool' coolant which erodes away at the intake manifold gasket. How to Build Chevy Big-Blocks: Cylinder Head Guide; easy to align with the intake manifold. com is your convenient source for advanced sealing information. Torque spec for Intake Manifold? Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine. 928 International is a team dedicated to providing you with the information needed to repair and maintain your Porsche 928. Big Block Chevy Intake Bolt Torque Specifications. The intake and exhaust valves cannot move until all the running clearance (valve lash) has been taken up. Then, you turn them the specified angle in sequence and do that until all the steps are done. 8L-231ci-V6 Engine Torque Specs. Big Block Chevy V8 - BBC - Engine Specifications 396-454 CID - BBC Firing Order. Kilpatricks recommended a fel-pro gasket set that has updated intake manifold gaskets. “Usually the camshafts and lifters are the limiting factors in developing dual-plane manifolds for the upper rpm ranges,” says Smith, who notes that Edelbrock started manufacturing intake manifolds in 1938. Some aftermarket intake manifolds don’t cover the upper opening, which does not cause any problems. It is advisable to use new gaskets to prevent any leakage. Some aftermarket intake manifolds don't cover the upper opening, which does not cause any problems. The Pontiac GTO was an automobile built by Pontiac from 1964 to 1974, and by General Motors Holden in Australia from 2003 to 2006. 7L) Application Ft. Displacement refers to the total amount of air that the pistons, which operate inside the cylinders, displace when they operate. The theme here is big displacement in a small-block made of aluminum, re-engineered with modern technology and race driven design. Weiand Stealth Intake Manifold Chevy BBC 396 427 454 Fits Rectangular Port Heads. I think the redline on the Crower cam is a misprint. I've had this installed for a ~1 year now, and no problems. Dorman Products - 615-175 : Upper Plastic Intake Manifold. The intake manifold assembly is a two-piece design. Single-plane intakes utilize a single plenum with short, direct runners to build power in the mid- and upper-rpm range. 4 Big Block V8. We know car parts and we know auto parts. Is this the same torque specs for the vortec head ? What is the torque spec and sequence for the vortec intake manifold ?. 3 Cylinder head gaskets are different from each other on the 4. Torque values and bolting sequence when installing new manifold?. Browse our inventory of Intake Manifolds today, while they still last!. However, I'd like more information on what intake manifold was used on this engine. intake manifold and tighten bolts to specifications (Table 1). The intake manifold sits right on top of your engine. I had the car on a dyno (Dynojet chassis dyno) last Friday and I am truly impressed by the numbers. We advise using new gaskets to prevent any leakage. Automobile Parts and Service Toggle navigation Community Chevy Automotive Sales Inc. 1 Cylinder Head Gasket1 Intake to Exhaust Manifold Gasket2. Do you know if these suffered from TqMgt also? Yeah I figure the stock cam is pretty weenie, looks like it falls off around 4300rpm or so. Howdy Folks was wondering if anyone knew the exact torque specs for the Intake Manifold bolts on my 454. Intake manifold bolts (cast iron head) 25 ft. Check out these First Generation 1996-1998 GM Vortec fuel-injected 350 Engine Power Upgrades, including exhaust, throttle body, and more, at Sport Truck Magazine. Head Gaskets and Head Sets for Mercruier. Torque spec for Intake Manifold? Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine. The intake manifold sits right on top of your engine. 5 parts available, such as hard to find or obsolete and no longer made parts. Mechanically similar, General Motors' LS and LS-based Vortec engines wound up on almost every branch of the GM family tree: Chevy, Pontiac, GMC, Cadillac, Buick—heck, even Saab, Hummer, and Isuzu got some LS love. Manifold Gasket Sets. Verify your engine specs with a service manual for your year and model. 14: Sit the manifold carefully over the port and bolt holes for proper alignment. Check them out in the "USED PARTS" category. 4 454 upper intake manifold upper intake tighten pattern - Chevrolet 1999 C2500 question Intake manifold torque specs. 4L 454 cid Gen. Just finished doing a complete overhaul on the vortec 454 in my plow truck. A “vacuum leak” allows too much air to enter the engine. Displacement refers to the total amount of air that the pistons, which operate inside the cylinders, displace when they operate. At the turbo inlet, the TD coating takes heat out of the housing and then out of the intake manifold while an ITB coating isolates the lower intake manifold from the heat of the engine below. 0 Mustang & Super Fords Magazine. DOWNLOAD MERCRUISER ENGINE & STERNDRIVE REPAIR MANUALS. Torque Specs. This is a common issue even for stock manifolds when overtightened, but is even more important with the port work that has been done. - Remove power steering pump with bracket and secure to body with wire (hoses remain connected). Many mani­folds are capable of warping during installation. However, other owners opt to go bigger with their Mustang engines, adding programmers, superchargers and. fiber glass boardfor plenum. We have built C. Get the best deal for Edelbrock Manifold Car & Truck Air Intake Systems from the largest online selection at eBay. Product Description. edelbrock rpm intake manifold prw sfi flywheel arp head bolts competition cam weiand action plus water pump flame thrower hei distributor march billet serpentine brackets & pulleys addco hp sway bar high torque mini starter new tremec 5 speed center force hp clutch global west tubular control arms koni front & rear shocks billet dipstick. Small Block Chevy Intake Manifold Bolt Torque Specifications 25 Ft/Lbs Make sure you follow the sequence in a couple of steps, worry about this more on old and aluminum manifolds. 030-inch over-bored 454 big-block Chevy displacing 460ci with JE 10. I know it sucks that you're having this particular problem with your 4. 7 motor with roller lifters. Introduced in January 1995, it is a "clean sheet" design with only rod bearings, lifters, and bore spacing in common with the longstanding Chevrolet small block V8 that preceded it as the basis for GM small-block V8s. These heads are tried and proven. If the thermostat is. Bosch designed, normally aspirated, multi-port fuel injection, electronic spark control, aluminum tuned-runners, aluminum intake manifold and aluminum intake box plenum. We do our own assembly on our heads. Rather than just talk about the theory, we decided to test the effects of changing duration on a typical street big-block Chevy. 4 454 upper intake manifold upper intake tighten pattern - Chevrolet 1999 C2500 question Intake manifold torque specs. I just had to tear mine down due to a blown intake manifold gasket on the water port located above #1 Piston. 269 CYLINDER HEADS 10048649 — Aluminum Cylinder Head Production “Generation II” V6/60° transverse-mounted engines have aluminum cylinder heads with splayed intake and exhaust valves. hey whats going on, i have a 1985 mustang gt and i am getting a new performer rpm intake manifold friday (2 days from now) i was just wondering about the ends of the manifold, do i use the supplied rubber seals or do i use just silicone. Apply Mopart Lock & Seal Adhesive (Medium Strength Threadlocker) to each upper intake manifold bolt. lol Is this a roller cam? I saw some pics of the intake manifold and it appears it's two pieces so it could be ported potentially. Putting 1000* exhaust gas to your intake hurts performance, and does NOTHING good except for operate the choke, and automatic chokes are for girls. We advise using new gaskets to prevent any leakage. (Image courtesy of GM Media. Tighten to 8 ft-lbs (10 N-m), then tighten an additional 1/3 turn to at least 37 ft-lbs (50 N-M). The bolt sizes for the muffler and carb thru intake manifold are different between the early models and the 272 forcing the use of 272 parts in some cases or modifying the old parts. Screw-in rocker arm studs 50 ft. For 1987 ad earlier applications Need more power? This engine combination would be outstanding in your car, street rod, truck, 4X4, or marine application. Likewise the aftermarket is not eager to make a bespoke custom intake manifold for a specific engine family based around trucks rather than racing use. Block Chevy Chevrolet GMC Straight Boot Wires 396 402 427 454 502 572 LSX Tall Fabricated Intake Manifold. Chevrolet Firing Order Firing Order: 1-8-4-3-6-5-7-2 Turn Distributor Counter-Clockwise to Advance Timing. re: torque specifications-1994-2001 chevy s10's & gmc sonoma's First Picture is the tightening sequence for VIN Z 4. The FE-series big-block was a hardy Y-block design that lived in many different forms during its production life which ended in 1976. Leaking coolant from a cracked intake manifold gasket is an extremely common problem on most GM vehicles made from the late 90s to the mid-2000s. Torque Specs These specs may not be correct for your application. 5 parts available, such as hard to find or obsolete and no longer made parts. maxima 91 intake plenum hose diagram. Verify your engine specs with a service manual for your year and model. These specs may not be correct for your application. My guess is that the small block maniflold is moving around when it heat cycles, beating up the gaskets. Coat both sides of a new thermostat housing$$ gasket withPerfect Seal (part No. Edelbrock Intake Manifolds are carefully developed & extensively tested to maximize performance & appearance in every application from the street to the strip. With a carburetor and high-flow Chevrolet Performance intake manifold (sold separately), these engines are good for about 627 hp and 586 lbs. Buy Fel-Pro Gaskets 1212 BB Chevy Intake Gaskets 396-454 ENGINES: Intake Manifold - Amazon. 4 - Answered by a verified Chevy Mechanic 7. 093: Pontiac Engine Torque Specs. 72 roller tip rockers. Single-plane, high-rise intakes designed for maximum race-winning power at higher engine speeds. were did you find this? the 454 has a comp I know for sure. The gasket sealant tends to shrink after a period of time and this may cause the intake bolts to lose their proper torque values. You can also increase your power up to 250hp over an OEM 454 engine, depending on choice of cam and intake manifold. Upgrading to Gen III LS-Series PCM: Sensors and Inputs Guide includes instructional photos, checklists, and step-by-step instructions on upgrading to the GM Gen III LS-Series PCM, ECM, Electronics, and POWERTRAIN CONTROL SYSTEMS. Other owners look to add more power to their Mustang engine. 7L V-8 GM (1987-95) with press in rocker arm studs with 12 intake manifold mounting bolts- (4 inside intake manifold bolts at 23 degrees), center mount valve covers. Aluminum lower portion of the intake manifold is used on Ram Jet 502 crate engine P/N 12499121 Use with lower manifold P/N 12464482 and uppper manifold gasket P/N 12489372 (4 required), and eight bolts P/N 12490255. Tools: standard socket set, standard wrenches, flat-blade and/or Phillips screwdriver, putty knife or scraper, torque wrench Tinware: aftermarket aluminum intake manifold, quality high performance intake gaskets, gasket sealer (silicone). After about 2 hours of running up and down the river, one of the intake manifold bolts backed completely out and left a small pool of oil in the valley of the intake right under the bolt. body area of the upper intake manifold on 1995-1999 GM 3. The usual "bolt ons" pump up the torque curve but don't change it's shape or RPM range very much. Coat both sides of a new thermostat housing$$ gasket withPerfect Seal (part No. It should look kind of like a bridge with multiple metal tubes on each side. It is a Gen 6 454 MPI. Mondello Performance manufactures and sells quality custom Oldsmobile performance parts and engines. Single-plane, high-rise intakes designed for maximum race-winning power at higher engine speeds. Im pointing to a vaccuum leak because of these stupid intake gaskets. im new to the pontiac cars so i dont know much bout them, my neighbor asked me if i can change her intake manifold gasket on her 1999 grand prix. There is also the MEL-series big-block (Mercury- Edsel-Lincoln, displacing 383, 430, and 462 ci), which is not covered here because it is not a performance engine. Automobile Parts and Service Toggle navigation Community Chevy Automotive Sales Inc. The torque curve is lengthened and the added horsepower is intriguing, but I am still hung up on the hood swap. The heads have 1. First torque all bolts to 15 ft. Flo-Tek 102505 Assembled S/B Chevy Aluminum Head, Straight Plug made by Flo-Tek, for as low as $399. At least, that's my experience with a Holley 850 on a Performer RPM between two Vortec 454 heads on top of a Mark IV 454 in my boat. Use Fel-Pro #1250 on either the 165cc or 185cc intake runner head. Block Chevy Chevrolet GMC Straight Boot Wires 396 402 427 454 502 572 LSX Tall Fabricated Intake Manifold. Apply sealer, GM P/N. 4 6ford ingine intake manifol. Howdy Folks was wondering if anyone knew the exact torque specs for the Intake Manifold bolts on my 454. Extend bead 1/2 inch up each cylinder head to retain side gaskets, then seal around all water passages. Crane PowerMax Hydraulic Lifter Camshafts for Emissions Controlled Vehicles without Computer. ) torque the intake manifold bolts with a torque wrench to specification. The WOT-Tech Competition Manifold Set requires the following torque procedure. - Detach hose from combi-valve at Air Cleaner upper section -arrow-. After about 2 hours of running up and down the river, one of the intake manifold bolts backed completely out and left a small pool of oil in the valley of the intake right under the bolt. Buy a genuine Mercury Quicksilver or aftermarket part. 4L (454) BBC. 83 in (46 mm) intake valves (instead of 1. The 370-hp 350 features the same hardware as the 350-hp version plus an aluminum intake manifold, domed hood, special cam, special exhaust and mechanical lifters. Repower a Chevy SS 454 With Heads, Cam & EFI Part 1 Using Torque to Yield Bolts Home-Made Valve Job Unshrouding Intake Valves. 3L Intake Manifold Bolts 1994-1995 Second Picture is for 1996 & Newer-Intake Manifold Tightening Sequence. What's New at SSDiesel Supply ™ USED PARTS SECTION: We now have an assortment of used 6. Classic Industries Restoration Parts and Accessories - Intake Manifold. 7 motor with roller lifters. Wiki User 07/16/2007. 2 TP-6105 8/05 CAUTION Caution: To reduce the chance of personal injury and/or property damage, carefully observe the instructions that follow. In: Chevy Silverado, Air Filters and Intake Manifolds [Edit categories] [Edit] Intake Torque specs on 98 350 Vortec The 98 Vortec 350 CID engine has an aluminum intake and a plastic plenum mounted to it. Verify your engine specs with a service manual for your year and model. While a 67 Impala is a large car, a 454 with 4:10 gears and a 4 speed is probably not gonna lack at launch on the street anyway, lol. I think I am going to call some manufacturers and get some opinions in the forum of which intake manifolds will fit under the hood. Horsepower is directly relational to torque and is a mathematical function of it. Chart Head Bolt Kits Head Bolts. Search Car Torque Specifications by Engine or Model Water Adapter/Connector To Intake Manifold 20 Ft-Lbs 240 In-Lbs 27. Single-plane, high-rise intakes designed for maximum race-winning power at higher engine speeds. The only area I can't get to is the rear of the manifold, behind the dizzy. Not a hard fix and it is a common issue. The best part is, our Chevrolet K2500 Intake Manifold products start from as little as $86. INCREASE LOW END TORQUE: Ditch the 2 x 4 intake manifold, go with a good quality dual plane manifold, designed for the carburetor you will use - no carb adapters. Chart Head Bolt Kits Head Bolts. Leaking coolant from a cracked intake manifold gasket is an extremely common problem on most GM vehicles made from the late 90s to the mid-2000s. This test merely underscored that concept. Torque spec for Intake Manifold? Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine. The first-generation 5. besure not to over tighten them to much though, dont want to strip anything. Will repower to older applications with an electric fuel pump and new intake manifold. Ford Big-Block Engine Parts Interchange Specifications The Ford big-block story centers around two primary engine families: the FE-series, and the 385-series engines. i need to replace the intake gaskets on my 1997 gmc 3500 with a 454. Popular Hot Rodding tech article on performance intake manifolds. Intake Air Flow Control. Howdy Folks was wondering if anyone knew the exact torque specs for the Intake Manifold bolts on my 454. the upper intake runners went. If the intake manifold gasket does not make a tight seal around the coolant ports, it may leak coolant into the crankcase. If you want to do some bolt-on stuff it seems that a complete exhaust system (with at least shorty headers) along with an Edelbrock TBI intake manifold and better flowing cold air kit give you decent bang for the buck. Please note that this engine uses a sequential multi-port fuel injection system. My guess is that the small block maniflold is moving around when it heat cycles, beating up the gaskets. "Usually the camshafts and lifters are the limiting factors in developing dual-plane manifolds for the upper rpm ranges," says Smith, who notes that Edelbrock started manufacturing intake manifolds in 1938. When the new LS engine first hit the streets, it was a big step forward for the small block Chevy family, introducing factory innovations like distributorless ignition, vastly improved cylinder head design (even when compared to the prior Vortec heads, which were themselves a quantum leap past previous factory castings), and a polymer intake manifold that didn’t retain and transfer heat like. 82 have a two piece intake manifold. Apply sealer, GM P/N. 4 454 engine upper intake specs. Install the fuel rail ensuring that the fuel injectors insert into the holes in the intake manifold. You can order your sheet metal intake manifold with 2, 3 or 4 stages of Nitrous. Figure 2 - 454 c. We do our own assembly on our heads. We specialize in Volvo Penta Volvo Penta engines, outdrives, propellers, and other accessories, but we also carry MerCruiser, PCM, Cummins, Perkins, etc. Summit said 9. Edelbrock engineers work in conjunction with leading engine builders from all forms of competition to design manifolds compatible with the latest technology. In any event, not a big deal. Loss of coolant, overheating, or oil contamination can be signs of an intake manifold coolant leak. As delivered, the LS376/525 includes the Intake manifold, with the injectors, fuel rail and throttle body already installed, along with the water pump and ignition system. Failing to follow these directions may result in a cracked manifold. Then torque the intake down. Applying proper torque to the intake manifold bolts helps ensure even gasket compression and proper sealing. After about 2 hours of running up and down the river, one of the intake manifold bolts backed completely out and left a small pool of oil in the valley of the intake right under the bolt. Rear mounted distributor. Over tightening the intake manifold bolts may crush the intake manifold gasket or crack the manifold. It installs between the upper and lower intake manifold, where it will increase. Replied by CaliforniaJeep on topic Over-torqued Intake Manifold Bolts I was replacing the lower intake gasket because coolant was leaking internally. Find the cheap Edelbrock Efi, Find the best Edelbrock Efi deals, Sourcing the right Edelbrock Efi supplier can be time-consuming and difficult. WEIAND STEALTH INTAKE MANIFOLD 8018 SUIT CHEV Big Block 396-454RECTANGLE PORT HEADS Just been removed and very good condtion Weiand dual plane Stealth intake manifolds feature long, separated runners for bottom-end and mid-range power, plus a special runner design and larger plenum to flow the air needed for high-rpm horsepower. The intake manifold sits right on top of your engine. The 1987 Chevy 454 engine displaces 454 cubic inches, or 7. 25 Ft/Lbs - Aluminum Heads worry about this more on old and aluminum manifolds. plastic air intake manifold toyota. a torque wrench. The Vortec 7400 L21 was a commercial version of the Chevrolet Big-Block engine used in the medium duty truck platform. Always torque bolts in three equal increments Bolts or PartsLube or SealerTorque to: Main Caps 396-427 (2 bolt) Engine Oil 95 ft-lbs. Intake Manifold Gaskets. The Real Street Ram™ is designed to produce Huge Power and Torque with street manners. Pro Comp Cylinder Heads These heads are made in the same style as the Edlebrock Victor cylinder heads. DOWNLOAD MERCRUISER ENGINE & STERNDRIVE REPAIR MANUALS. Extend bead 1/2 inch up each cylinder head to retain side gaskets, then seal around all water passages. 83 in (46 mm) intake valves (instead of 1. Thanks for watching !!. 7L engines 20. Edelbrock Intake Manifolds are carefully developed & extensively tested to maximize performance & appearance in every application from the street to the strip. We are trying to keep the air as cool and as dense as possible while passing through the turbo and intake manifold and on into the combustion chamber. Reverse procedure to install, using new gaskets and seals. Locate Offenhauser Intake Manifold on sale below with the largest choice of Offenhauser Intake Manifold anywhere online. That said, those cams aren't really that close. (4) Position upper manifold on lower manifold (Fig. Over 6,000 Automotive Torque Specs. We build to order carburetor or E. Howdy Folks was wondering if anyone knew the exact torque specs for the Intake Manifold bolts on my 454. Edelbrock engineers work in conjunction with leading engine builders from all forms of competition to design manifolds compatible with the latest technology. 4 454 upper intake manifold upper intake tighten pattern - Chevrolet 1999 C2500 question Intake manifold torque specs. The information below is divided into the following sections: package contents, component information, 502 engine specifications, additional parts that you may need to purchase, torque specifications, start-up and break-in procedures, and a service parts list. removal plenum manifold mazda mpv. The real simple way to tell these late model GM engines apart is the following: Olds (big and small block): Separate oil filler tube on front of block above water pump. Tighten to 8 ft-lbs (10 N-m), then tighten an additional 1/3 turn to at least 37 ft-lbs (50 N-M). Most Fel-Pro® Performance intake manifold gaskets are designed without a metal core, to allow engine builders to trim the gasket for exact fit on modified ports. The information below is divided into the following sections: package contents, component information, 502 engine specifications, additional parts that you may need to purchase, torque specifications, start-up and break-in procedures, and a service parts list. Performer manifolds are dual-plane, low-rise intake manifolds with a 180° firing order and patented runner design that you won't find in other brands. Don't make the mistake of presuming that adding an intake manifold cataloged as effective to 7,500 rpm will ensure the highest output from your street-bound powerplant. 1985-1988 MerCruiser Repair Manual V8 305 350 454 482 540. Torque spec for Intake Manifold? Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine. Chart Head Bolt Kits Head Bolts. Intake Tuning A couple of other things to mention about older CPI system is that it uses an Intake Manifold Tuning Valve (IMTV) to open up the intake manifold plenum when engine rpm is above 3,000 rpm and the throttle position is above 36%. Oil pump … Read More. Torque and drivability have also. Throughout its life, the 350 has had numerous models identified by letter combinations such as L-48 and LT-1. I cant find the torque setting for the upper bolts. intake manifold and tighten bolts to specifications (Table 1). I torqued the head bolts 3 times and in the sequence the manual said to. Volumetric Efficiency. 4L 454 cid Gen. This video will teach you how to install an intake manifold on a 454 big block engine. We offer high quality new, OEM, aftermarket and remanufactured Chevrolet K3500 Intake Manifold parts. I have a 2000 k3500 1 ton truck with a 7. Need the torque specs for the upper intake bults on a 2002 chrysler sebring conv. 22lbs, 44lbs and then 66lbs. Your source for engine rebuild parts for automobile, light truck, tractor, agricultural, diesel, industrial, heavy duty and vintage engines!. Install and tighten bolts to 12 N·m (105 in. If the coolant leak is coming out where the manifold and the engine meet it is most likely caused by a damaged gasket. 4L (454) BBC. These heads are tried and proven. Over tightening the intake manifold bolts may crush the intake manifold gasket or crack the manifold. Does anyone here know of the symptoms of an intake manifold gasket leak? The hoe is having the same issues its been having with the tuned pcm, but with the stock computer now. finally got the engine to the machine shop, so building may start happening next week, havent found much info, but would the torque specs on all the fasteners on a gen vi be the same as a gen iv?. The popular "X-terminator" single plane manifold series was launched in 1972 and high performance aluminum water pumps were made by Weiand the following year. If the thermostat is. Torque Specs. Blower Drive Service : Blower Manifolds - Blowers & Blower Parts Fuel Lines & Linkages Drive Kit Components BLOWER MANIFOLDS Fuel Injection Blower Drive Kits Timing Accessories & Belt Guards Blower Kit Systems Scoop & Air Filters BDS Apparel Uncategorized ecommerce, open source, shop, online shopping. Rather than just talk about the theory, we decided to test the effects of changing duration on a typical street big-block Chevy. It is thoroughly tested to ensure top-quality OEM construction and superior reliability. Aluminum lower portion of the intake manifold is used on Ram Jet 502 crate engine P/N 12499121 Use with lower manifold P/N 12464482 and uppper manifold gasket P/N 12489372 (4 required), and eight bolts P/N 12490255. i : C-92-34227). INTAKE MANIFOLD BOLT PATTERN IS THE SAME FOR ALL 65-79 HEADS. A 465 hp (347 kW) and 490 lb·ft (660 N·m) version of the 454, dubbed LS7 was also designed but never went to production. Bolt Torque Spec Chart For Chevy Fax: (305) 827-4370 www. besure not to over tighten them to much though, dont want to strip anything. 5 parts available, such as hard to find or obsolete and no longer made parts. The torque range is approx. Edelbrock engineers work in conjunction with leading engine builders from all forms of competition to design manifolds compatible with the latest technology. If the intake manifold gasket does not make a tight seal around the coolant ports, it may leak coolant into the crankcase. Both oif these engine models are easy to recognize by the large “Bread Box” style intake plenum mounted directly on top of the engine. vi gm 454 v-8 1998-2000 intake manifold and intake plenum parts. tighten pattering for a chevy c2500 1999 7. Displacement refers to the total amount of air that the pistons, which operate inside the cylinders, displace when they operate. WEIAND STEALTH INTAKE MANIFOLD 8018 SUIT CHEV Big Block 396-454RECTANGLE PORT HEADS Just been removed and very good condtion Weiand dual plane Stealth intake manifolds feature long, separated runners for bottom-end and mid-range power, plus a special runner design and larger plenum to flow the air needed for high-rpm horsepower. The arrival of the 1970 Corvette happened somewhat later than was typical in the automotive manufacturing industry, due in part to the incredible sales backlog that had occurred during the 1969 model year and also due in part to the UAW (United Workers) strike, which delayed the new Corvette from reaching showrooms until February. the carb, the manifold had the center divider cut down about 1 inch. Verify the engine specifications before purchasing one!. GM V8 blocks with closed cooling system:_ : a. The Vortec 7400 L21 was a commercial version of the Chevrolet Big-Block engine used in the medium duty truck platform. , and all performance applications. Extend bead 1/2 inch up each cylinder head to retain side gaskets, then seal around all water passages. Arctic Cat 454 Wiring Diagram D Changing Upper Lower Intake Intake Head Torque Specs Descriptions : D Changing Upper Lower Intake Intake Head Torque Specs Arctic Cat 454 Wiring Diagram. As the intake runners become shorter, this tends to enhance peak power but almost always at the expense of mid-range torque. Delivering 525 horsepower at 6,300 rpm and 489 lb. 4 454 engine upper intake specs. If the thermostat is. 7 motor with roller lifters. This is a common issue even for stock manifolds when overtightened, but is even more important with the port work that has been done. *Some of these files must be viewed with Adobe Reader. This leak may be related to upper intake manifold composite material that may degrade around the EGR stove pipe, resulting in an internal or external coolant leak. Route the fuel injector wiring harness along the top of the fuel rail and connect the harness plugs to the injectors. I am looking for the torque spec for the intake manifold to cyl head. For sale: 1976 Chevrolet C10 Pickup Engines (Options: 6 Cyl, 250 cid Without integral intake manifold). I then looked at my torque wrench (Craftsman) the numbers start at 20 pound feet.