454 Upper Intake Manifold Torque Specs

Product Description. First torque all bolts to 15 ft. With a carburetor and high-flow Chevrolet Performance intake manifold (sold separately), these engines are good for about 627 hp and 586 lbs. Use of the FE-series big-block in passenger cars ended after 1971 with retirement of the 390. Single-plane, high-rise intakes designed for maximum race-winning power at higher engine speeds. Verify the engine specifications before purchasing one!. The parts and labor required for this service are. Dose anybody know what the torque setting is for the upper intake is and is it in foot pounds or inch pounds? Thanks for the help everybody Aaron W. 4L 454 Torque Specs Had the boat out this weekend and had an interesting thing happen. Rather than just talk about the theory, we decided to test the effects of changing duration on a typical street big-block Chevy. 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. Very often leaking intake manifold isolator bolts cause this lean condition. The heat transfer from the heads/block to the intake manifold, as well as that of the coolant will keep the intake "warm enough" (like the Nascar 210*). Intake Manifold Ford 300. Bolt Torque Spec Chart for Chevy Big Block Chevy Fastener Type Torque Specs Main cap bolt, 396-427 2-bolt 95 ft. These specs may not be correct for your application. Chart Head Bolt Kits Head Bolts. the upper intake runners went. You can buy Genuine Honda (17100-RRB-A00) Intake Manifold for sale at low price. It is highly recommended that you re-torque the intake manifold. 88-inch valves, 1 7/8-inch primary tube headers, an Edelbrock Performer RPM dual pane intake manifold, and a. 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. These heads are designed for high horsepower 396, 427, 454, and 502 engines. Verify the engine specifications before purchasing one!. Leaks at the intake manifold are a common engine problem. We have currently 0 engines in stock available for immediate shipping. Small Block Chevy Vortec Intake. About 50 percent of the measured torque is used in overcoming bearing friction. Thanks for watching !!. This means that if you have to consider using a 4150-style carb it is at the upper limit of airflow for the carb design. The torque curve is lengthened and the added horsepower is intriguing, but I am still hung up on the hood swap. Buy Fel-Pro Gaskets 1212 BB Chevy Intake Gaskets 396-454 ENGINES: Intake Manifold - Amazon. There are not any O rings on this gasket. A Step-By-Step Guide to Replace the Upper and Lower Thermostat Housing on a Ford 4. Engine Torque Specs. Clean all gasket surfaces completely. Torque specs Find the most up-to-date torque spec listings in electronic format. It was using a small amount of coolant before all the work which I knew was the intake gasket as its a common problem on the vortecs. 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. How to Install a Head Gasket. The '96-'00 350ci Chevy Vortec 5700 engines enjoy lots of aftermarket support to help improve the 255 hp and 330 lb-ft of torque they're rated for at the crank. Trick Flow Specialties is a leading designer and manufacturer of high performance cylinder heads, intake manifolds, and engine components. Garage kept the last 16 years, but he uses it as regular vehicle, putting approximately 10K per year on it. 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. Also, follow the recommended torque procedure when tightening down the intake manifold bolts and make sure it is the latest procedure as the original procedure and torque specs may have been revised. - Detach hose from combi-valve at Air Cleaner upper section -arrow-. duct board plenum. Page 35: Torque Wrenches HOW TO USE THIS BOOK When tightening a threaded fastener, torque is applied in three distinct areas, the head, the bearing surface and the clamp load. Step-17: Long-Block Assembly. Take a look at our Sonny's sheetmetal Intakes, as well as other Intake Manifolds available for sale here at Sonny's Racing Engines. Intake Manifold 454/502CID 454CID Gen IV 454XL & 502XL º UPPER GEARCASE ASSY 60/80/81/91 SERIES Head Bolt Torque Spec. A small amount of silicone is recommended around the water ports and the intake port. ) following torque sequence in (Fig. ) or modern part number ("2101", etc. So i replaced the MAF, same problems. Installed Vortec heads on a standard 1986 reman 5. Although it is a popular. One of the simplest and most effective ways is to add a Mustang cold air intake, which can add additional horsepower and torque at the wheels and doesn't take too long to install. AllData shows the tightening torque as 25 Nm (18 ft lb) for the intake manifold bolts, but I can't find a tightening sequence anywhere. 72 roller tip rockers. BTW, the old 450-425 HP LS6 454 from 70-71 had the aluminum large square port heads and came with a mechanical lifter cam and high rise intake (Chevelle, Vette had a low-rise after the L-88's were gone) with a Holly carb. Put in the Felpro gaskets and torque down the bolts slowly and evenly. 1 Cylinder Head Gasket1 Intake to Exhaust Manifold Gasket2. intake manifold torque specs Sign in to follow this. The automatic transmission was removed and replaced with a five speed on the floor, Hurst shifter and heavy-duty competition clutch. Mercruiser 502 Magnum Engine Specifications 7. 13: To prevent oil leaks, use silicone gasket sealer instead of the intake manifold end gaskets, its proven to be better. 5200 rpm seems more like it. Please note that this engine uses a sequential multi-port fuel injection system. Pro Comp Cylinder Heads These heads are made in the same style as the Edlebrock Victor cylinder heads. I need the torque specs for the bolts and the pattern if someone has that. Also these custom manifolds are installed in such a. body area of the upper intake manifold on 1995-1999 GM 3. Main cap bolt, 396-454 4-bolt (inner/outer) 110 ft. Failing to follow these directions may result in a cracked manifold. What is the intake manifold torque sequence for a K1500? Reply 1: Welcome to the forum. Carburetor. Order a Edelbrock 367 HP Performer RPM Top End Engine Kit for your Mustang with a 289/302 Engine from CJ Pony Parts today! Simply add the Edelbrock carburetor best suited for your application and get the "seat-of-the-pants" feel you've been looking for!. Apply gasket sealer to the front and rear sealing surfaces of the engine block. Download a copy of a repair manual for your MerCruiser straight to your computer in seconds—fix you engine or sterndrive now. 5 liters all have the same bolt pattern at the bottom and will techically interchange, but with differences in exhaust size other changes would be needed, specifically the plates at the top of the mid, or in the case of the high perf stuff, the one piece plate. Over tightening the intake manifold bolts may crush the intake manifold gasket or crack the manifold. or less of torque. 5 parts available, such as hard to find or obsolete and no longer made parts. Did everything from the head gaskets up. Buying Request Hub makes it simple, with just a few steps: post a Buying Request and when it’s approved, suppliers on our site can quote. Most experts agree that the problem stems from GM's 'DexCool' coolant which erodes away at the intake manifold gasket. 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. 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. Verify your engine specs with a service manual for your year and model. There are two identical gaskets that lay on the heads, but the mating surface between the intake manifold and the block just uses a bead of RTV. Any ideas? Mike. We both have 1. These pictures show the engine after a lot of filing and sanding, and some handwork with metal polish. We build matching die formed plenums. Small Block Chevy Vortec Intake. Also includes is a set on new gaskets and seals,seen in the last picture. i need to replace the intake gaskets on my 1997 gmc 3500 with a 454. Install the thermostat into the intake manifold. The WOT-Tech Competition Manifold Set requires the following torque procedure. GM Engine Torque Specifications and Sequences GM Engine Torque Specs. Your Chevrolet K2500 will be happy to know that the search for the right Intake Manifold products you've been looking for is over! Advance Auto Parts has 8 different Intake Manifold for your vehicle, ready for shipping or in-store pick up. Order Exhaust Manifold/Header Bolts & Studs for your vehicle and pick it up in store—make your purchase, find a store near you, and get directions. All our aluminum sheet metal intake manifolds use precision die formed intake runners. 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. Using bolts instead of the studs does not affect the mounting. The stock system on this vehicle, as already stated is terrible for both fuel economy and issues with the chokes jamming on, throttle response and overall performance. Followers 1. Intake Manifold (139-9) Intake Manifold (151-9) Intake Manifold Clamp (180-51) Intake manifold for 43cc and 49cc scooter engine; Intake Valve (151-79) Koso Intake Manifold - Honda Grom (128-14) M6-1. 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. 1) Torque intake manifold bolts in stages in a diagonal sequence ( => illustration 15-A073 on page 15-28). If torque specs cannot be found in your Ford Shop Manual, check bolt size torque specs in a Motors or Chilton repair manual. Since LS and Vortec engines are so common, they've become the go-to. 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. ecotec carburated intake manifold. 50" exhaust valves with. Wiki User 07/16/2007. Looking for a 1996 Chevrolet K2500 Intake Manifold? Get yours at Wholesale Prices and Free Shipping over $50 only here at AutoPartsWarehouse!. 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. Engine Torque Specs DISCLAIMER : This page is not intended to replace the information contained in a factory level service manual and is intended solely as a "Quick" reference. To make the repair, follow the upper intake manifold removal instructions found in the Engine Unit Repair section. Obsolete Edelbrock V8 Intake Manifolds: The following Table shows Edelbrock V8 intake manifolds going back to the late 1950s, sorted by engine type. Over tightening the intake manifold bolts may crush the intake manifold gasket or crack the manifold. The first dual plane, 180º intake came from Weiand in 1965, known as the "Colt" and in 1968 Weiand introduced the "Hi-Ram Manifold" and its patented D-port technology. Edelbrock Intake Manifolds are carefully developed & extensively tested to maximize performance & appearance in every application from the street to the strip. Looking at repowering the Tahoe in the next year or so and trying to get some info on my options. This can be downloaded for free from Adobe's website *. The basic tightening procedure is to first snug up bolts, then tighten in stages, and then complete with the final torque specified. All specs are taken from Helms/GM documentation for a 2000 Model F-body. I think the redline on the Crower cam is a misprint. Tighten to 8 ft-lbs (10 N-m), then tighten an additional 1/3 turn to at least 37 ft-lbs (50 N-M). ecotec carburated intake manifold. 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 engines are built with the heavy-duty Chevy big block. The upper and lower intake manifold is now aluminum on the naturally aspirated models. 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. Stock manifolds (ported) would be much better (as far as money goes). Im pointing to a vaccuum leak because of these stupid intake gaskets. So it makes sense that the way to increase the power of your engine—to up its horsepower and torque—is to find ways to move more air in and out of it. Step-17: Long-Block Assembly. 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. First Guess: The intake ports in the Vortec 454 won't support anything over 5K no matter what intake manifold is hung between them. 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. com ** [email protected] Bolt Torque Spec Chart for Chevy Small Block Chevy Big Block Chevy Fastener Type Torque lbs. Mondello Performance manufactures and sells quality custom Oldsmobile performance parts and engines. It is highly recommended that you re-torque the intake manifold. For the 205cc use Fel-Pro #1262. Steel bolts into aluminum torque specs. used intake manifold runner control actuator. 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. Intake manifold bolts (cast iron head) 25 ft. I went to Crower's site to find a more comparable cam and didn't see anything I like better than the Comp cam you have listed. Some custom application intake manifolds or those manifolds equipped with individual throttle bodies, do not have enough room to accumulate sufficient engine vacuum. The carburetor is a Holley Ultra HP 1150 CFM Dominator (PN 0-7320-2RD), installed on top of a Wilson Manifolds 1½-inch spacer using ARP carb studs. - Remove power steering pump with bracket and secure to body with wire (hoses remain connected). You can order your sheet metal intake manifold with 2, 3 or 4 stages of Nitrous. com is your convenient source for advanced sealing information. The service manual of General Motors Powertrain is intended for use by professional, qualified technicians. The 1987 Chevy 454 engine displaces 454 cubic inches, or 7. On rotary valve engines, measure just below auxiliary transfer port, facing exhaust port. duct board plenum. Fel-Pro marine gaskets deliver proven gasket technology that you can trust. I unplugged the MAF, the problems went away. Offenhauser Manifold The vehicle dealer is one of the few remaining people in America that you still have to regularly haggle with. cylinder with down to just below the intake port. Brakes; Cooling; Drivetrain; Electronics; Engine; Exhaust; Exterior; Fluids; Forced Induction; Fuel & Ignition; Garage & Safety; Gauges; Intake; Interior. Tune-Up Specs Torque Values 3-Point Specs retain the carburetor to the intake manifold on the engine. Now the exhaust valve can be adjusted. 7L engines 20. were did you find this? the 454 has a comp I know for sure. I think the redline on the Crower cam is a misprint. 22lbs, 44lbs and then 66lbs. This change would flatten out the torque curves on either header length. Failing to follow these directions may result in a cracked manifold. Not a hard fix and it is a common issue. Installing a new intake manifold. Applying proper torque to the intake manifold bolts helps ensure even gasket compression and proper sealing. intake manifold gasket repair on a 350. 96-00 454 Vortec Upper & Lower Intake Manifold Multiport Fuel Injection 7. How to Build Chevy Big-Blocks: Intake Manifold Guide If a 350 small-block is good with a 750 carb, a 454 needs a carb of some 970 cfm just to keep pace in terms of CFM per cubic inch. under drive pullys with no fan. We have built C. used intake manifold runner control actuator. After the engine has been started and broken-in, recheck the torque on all of the intake manifold bolts. i need to know the torque specs for the upper and lower intake bolts and any other information that would be helpful. but if you dont have one already it wouldnt buy 1 specifically for this. Although it is a popular. Vortec specific intake manifold. standard when measuring the new 2001 Ford Escape’s cargo area. Intake Manifold Gasket (my own Do to hear the torque specs on the upper manifold. The intake manifold is a series of tubes that distributes the air coming into the engine evenly to each of the cylinders, so that the right amount of air can mix with the right amount of gas. These heads are designed for high horsepower 396, 427, 454, and 502 engines. and upper intake manifold gaskets. Throughout its life, the 350 has had numerous models identified by letter combinations such as L-48 and LT-1. All our Chevrolet engines come with 1-year warranty, FREE shipping and 30-day money back guarantee. What is the torque specifications for the intake manifold on a 1997 Chevrolet vortec 350? Answer. 5, respectively, while its average production from 4,000 to 6,000 rpm was 428. re: torque specifications-1994-2001 chevy s10’s & gmc sonoma’s First Picture is the tightening sequence for VIN Z 4. So there you. I need the torque specs for the bolts and the pattern if someone has that. For 1987 ad earlier applications Need more power? This engine combination would be outstanding in your car, street rod, truck, 4X4, or marine application. Best Ford 351m Intake Manifold prices online | Ford 351m Intake Manifold for sale with amazing discounts from top websites | Check out the best deals today by MSN. 15: Torque your manifold using 1/3 rd values, start off with 15ft/lbs. Click the picture for the torque sequence. 7L) Application Ft. Many vehicles also have coolant passages in the intake manifold, meaning engine coolant travels through the manifold. Re-engineered by Dorman with heat-resistant molding to reduce both warping and coolant leaks (where applicable)^Some manifolds feature a reinforced aluminum coolant crossover to eliminate corrosion and vibration (where applicable)^Reinforced EGR and coolant passage walls increased manifold durability (where applicable)^Torque specifications. Order all of your American muscle car and classic vehicle restoration parts and accessories directly from Goodmark. Most internal combustion engines run on a four-stroke process and during the first stroke (called the intake stroke) air from the intake manifold is. Rear mounted distributor. Upon initial installation of replacement ball joint, tighten nut to to 81 ft-lbs (110 N-m). Use Fel-Pro #1250 on either the 165cc or 185cc intake runner head. I don't think I would bother with the injector O-rings. When I did my next pull, wow, power came up like crazy, torque picked up about 30 to 40 pounds and the horsepower came up to around 478. Regardless of the model, the intake manifold has the same torque specifications. If the thermostat is. 22lbs, 44lbs and then 66lbs. Exhaust manifold bolts= 42 ft/lbs Intake manifold bolts= 18 ft/lbs The degrees you see are the torque angle method. shop manual), torque the intake manifold bolts in two steps. Over 6,000 Automotive Torque Specs. Howdy Folks was wondering if anyone knew the exact torque specs for the Intake Manifold bolts on my 454. The manual I have says inch pounds, need to verify that this is correct. I didn't read the cam spec sheet. I am ready to install the new manifold and have a couple of questions for those that have done exhaust work on the 454's. These heads are tried and proven. For this story, we will be using a 0. This output was very good for the times, but horsepower and torque could have been much more had the factory intake flowed at least 750 cfm (instead of a paltry 475 cfm). K5 Blazer Specifications (1980-1991) non-asbestos intake manifold gaskets, and heavy-duty intake valves. Intake Manifold, for example, builds power from 3,500-8,000 rpm, making it ideal for racing applications. Head Bolt Torque Sequence specs head bolt tightening sequence 454 454 vortec intake torque 500 x 412 · 50 kB · gif Source 472 500 Cadillac Intake Manifold Performer Intake Manifolds >Edelbrock 2115 Performer Intake Manifold 600 x 600 · 18 kB · jpeg Source. I'm thinking of upgrading the ignition to a MSD system (or something similar), changing the intake (stocker is really flat, and I've heard they kinda suck), putting in a lower end girdle, putting in roller rockers, and changing the cam. Performer RPM 2-0 Intake Manifold is designed for street 396-502 c. Factory gaskets should have the words "This Side Up" visible. However, you should be familiar with and comfortable working on your vehicle. The exhaust manifold bolts to the cylinder head first with 11 foot-pounds of torque, then with 22 foot-pounds. Read the tech article on CHP Torque Charts For Small- And Big-Block Chevys, brought to you by the experts at Chevy High Performance Magazine. If the intake manifold gasket does not make a tight seal around the coolant ports, it may leak coolant into the crankcase. 94" intake valves and 1. I have a 2000 k3500 1 ton truck with a 7. Big Block Chevy V8 - BBC - Engine Specifications 396-454 CID - BBC Firing Order. We're here to help you find that perfect Intake Manifold for your Chevy K2500 Suburban. Fel-Pro marine gaskets deliver proven gasket technology that you can trust. I don't think I would bother with the injector O-rings. The Pontiac Engine. The upper half (often called a plenum) mounts the throttle body. 92 kits found for Intake Manifold Studs & Bolts : Page 1 of 4 | Next | Last: Didn't find the kit you were looking for? SB Tuned Port complete SS hex. 4 Intake manifold torque sequence SOHC engines-4. Search Car Torque Specifications by Engine or Model. 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. Chevy V8s with large oval-port cylinder heads (1975 and earlier), this dual-plane high rise manifold delivers outstanding horsepower while maintaining good torque and driveability. Special thanks to crackeregg for making these documents available in a digital format (saved me a lot of typing!). Single-plane intakes utilize a single plenum with short, direct runners to build power in the mid- and upper-rpm range. m) Balance Shaft Gear Bolt Step 1 15 (20) Step 2 Additional 35 Degrees. 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. Delivering 525 horsepower at 6,300 rpm and 489 lb. 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. 4L (454) BBC. Head Bolt Torque Sequence specs head bolt tightening sequence 454 454 vortec intake torque 500 x 412 · 50 kB · gif Source 472 500 Cadillac Intake Manifold Performer Intake Manifolds >Edelbrock 2115 Performer Intake Manifold 600 x 600 · 18 kB · jpeg Source. Back distributor, does not pass through the intake manifold = Olds. Over tightening the intake manifold bolts may crush the intake manifold gasket or crack the manifold. TORQUE SPECIFICATIONS Engine Upper Mount Bracket 74 (54) Rear Mount Bracket 12-mm Bolts 43 (59) Intake Manifold Bracket 8-mm Bolts 18 (24). Apply gasket sealer to the front and rear sealing surfaces of the engine block. What kind of power potential do you guys think is possible with the vortec 454 efi intake manifold?. 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. How to Build Chevy Big-Blocks: Intake Manifold Guide If a 350 small-block is good with a 750 carb, a 454 needs a carb of some 970 cfm just to keep pace in terms of CFM per cubic inch. Came off of a running 1996 GMC K3500 with approximately 170,000 KM. cd captree land of plenty. at 4,400 rpm, this is the top of the line for factory GM crate engines. Help is just a click away!. 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. Install the thermostat into the intake manifold. 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. Looking at repowering the Tahoe in the next year or so and trying to get some info on my options. My guess is around 20 ft lbs but just want to be sure. What kind of power potential do you guys think is possible with the vortec 454 efi intake manifold?. This test merely underscored that concept. By Caminoguy, November 2, 2009 in 1990 to Present Legacy. 1 Cylinder Head Gasket1 Intake to Exhaust Manifold Gasket2. LSX Intake Torque Sequence;. If the thermostat is. Im pointing to a vaccuum leak because of these stupid intake gaskets. Why Do Intake Manifolds Fail?. 4L/454 Intake Manifolds, Fuel Injected and get Free Shipping on Orders Over $99 at Summit Racing!. 14: Sit the manifold carefully over the port and bolt holes for proper alignment. Just about any intake manifold you can imagine has been produced for the FE over the last 50 years, including single four barrel (4V), dual four barrel (2X4V), tri-power intakes (3X2V), crossrams, tunnel rams, 6X2V Stromberg setups, 4X2V Weber setups, and even an adapter manifold that allows use of a 351 Cleveland intake on the FE. The manual I have says inch pounds, need to verify that this is correct. Always inspect the intake manifold for cracks and other irregularities. 19172591 DATE REVISION AUTH SHEET OF3 21 P Archived 0417 - N/A Component Information Cylinder Heads: The 350/290 HP engine has cast iron cylinder heads. The Vortec 7400 L21 was a commercial version of the Chevrolet Big-Block engine used in the medium duty truck platform. Brian bought his 87 SS new in Ft. I don't think I would bother with the injector O-rings. Read the tech article on CHP Torque Charts For Small- And Big-Block Chevys, brought to you by the experts at Chevy High Performance Magazine. First torque all bolts to 15 lb. Rob's Speed Shop in Mena, Arkansas provided a Brodix single-plane intake manifold for a 4150 carburetor on a tall deck block in October of 2004, in exchange for advertising on the site. For this story, we will be using a 0. 22lbs, 44lbs and then 66lbs. So i replaced the MAF, same problems. The usual "bolt ons" pump up the torque curve but don't change it's shape or RPM range very much. A Step-By-Step Guide to Replace the Upper and Lower Thermostat Housing on a Ford 4. Bosch Mass Air Flow (MAF) sensor, approximately 520 CFM flow rate. Install the lower intake manifold to the engine. I didn't read the cam spec sheet. We have currently 0 engines in stock available for immediate shipping. We have worked hard to design a site that caters to everyones Chevy K2500 Suburban Intake Manifold needs. The 1987 Chevy 454 engine displaces 454 cubic inches, or 7. Im pointing to a vaccuum leak because of these stupid intake gaskets. This engine uses a 2-piece intake manifold. What are the torque specs on a 454 vortec engine? Correct torque on 2000 model : 18 Ft. The 225cc runner head will require the Fel-Pro 1262R. Rather than just talk about the theory, we decided to test the effects of changing duration on a typical street big-block Chevy. I cant find the torque setting for the upper bolts. This is a common issue even for stock manifolds when overtightened, but is even more important with the port work that has been done. Put in the Felpro gaskets and torque down the bolts slowly and evenly. The parts and labor required for this service are. Volumetric Efficiency. It had slightly reduced power compared to the L29 454 and used a different PCM. The 350 cubic inch motor was rebuilt with all Edelbrock components, EPS performer intake manifold and Edelbrock carb, heads and cam. TORQUE SPECIFICATIONS TORQUE SPECIFICATIONS (4. All our aluminum sheet metal intake manifolds use precision die formed intake runners. 3 Cylinder head gaskets are different from each other on the 4. intake manifold and tighten bolts to specifications (Table 1). Horsepower is defined as torque times rotational velocity. machined intake manifold halves for vintage race cars. Is the hi-rise intake manifold the only real difference between the 454 and the 454 Mag? Thanks in advance for any and all input. Then, you turn them the specified angle in sequence and do that until all the steps are done. with the use of aluminum heads. com FREE DELIVERY possible on eligible purchases. Its design shared much with the L29 454, but with the addition of forged pistons and crankshaft, and coil near plug ignition. There are two identical gaskets that lay on the heads, but the mating surface between the intake manifold and the block just uses a bead of RTV. These heads are tried and proven. 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. My guess is that the small block maniflold is moving around when it heat cycles, beating up the gaskets. The team has shared all the finest moments in the numerous accolades for its people, its products, and its approach. 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. cd captree land of plenty. Garage kept the last 16 years, but he uses it as regular vehicle, putting approximately 10K per year on it. Dorman Products - 615-175 : Upper Plastic Intake Manifold. 3 Cylinder head gaskets are different from each other on the 4. 4L Magnum MPI. How to Build Chevy Big-Blocks: Intake Manifold Guide If a 350 small-block is good with a 750 carb, a 454 needs a carb of some 970 cfm just to keep pace in terms of CFM per cubic inch. Failing to follow these directions may result in a cracked manifold. re: torque specifications-1994-2001 chevy s10's & gmc sonoma's First Picture is the tightening sequence for VIN Z 4. The parts and labor required for this service are. com and buy online now. Engine Torque Specs DISCLAIMER : This page is not intended to replace the information contained in a factory level service manual and is intended solely as a "Quick" reference. Edelbrock engineers work in conjunction with leading engine builders from all forms of competition to design manifolds compatible with the latest technology. Never use an impact gun to either remove or install head bolts. Corvette Central in Sawyer Michigan is the leading manufacturer and distributor of Corvette parts for performance, restoration, reproduction and OEM replacement on all Corvette years and generations from C1 to ZR1, including grille teeth and the Concept 57 body. If torque specs cannot be found in your Ford Shop Manual, check bolt size torque specs in a Motors or Chilton repair manual. duct board plenum. Torque Specs These specs may not be correct for your application. i need to know the torque specs for the upper and lower intake bolts and any other information that would be helpful. This is true for the intake manifold and if you’ve got headers.