Edelbrock Aluminum Head Torque Specs

Aluminum has a higher coefficient of expansion than cast iron. 5 component speakers. But I would assume that the clamping load is more a question of the aluminum head and not the capacity of the stud or the bolt? I am not sure though you might consult with Gess ford as he seems to be the know all on the subject of the edelbrock heads and the use of the different fasteners. For Chevy Small Block 302/327/350/383/400 SBC 200cc Intake 68cc Straight Aluminum Bare Cylinder Head. Both of these modifications will allow these heads to produce even more power and torque. Torqueing the header pipe bolts. More than that will destroy the gaskets and they will leak! The idea is, the iron block and heads will want to move around differently compared to the aluminum manifold, so LET IT. Often, at least with ARP, the unthreaded portion of the stud is longer than necessary and can interfere with proper torque, even with guide plates. The Edelbrock Performer EGR (Electronic Gas Recirculation) Intake Manifolds are dual-plane, low-rise intake manifolds with a 180 degree firing order and patented runner design. Ford 460CJ Head, Assm. 45 kits found for Rocker Arm Studs : ARP rocker studs are concentric within. The 1968-1971 340 "A" head features a larger, open combustion chamber. * Rocker shaft bracket bolts 25 ft. E'Brock specs 25#-ft for the RPM intake, I always presumed this was because the bolts were threaded into their alum heads, they don't use inserts for the intake bolts. The 4V heads have much larger intake and exhaust ports (2. SVE Performance Aluminum Cylinder Heads Increase horsepower and torque in your 1979-1995 Mustang 5. The E-Street heads install just like factory cylinder heads, and the head bolts are installed and tightened in the standard sequence to a final torque of 70 lb-ft. Edelbrock Foundry out of 356 aluminum and heat treated to T-6 specs, then machined at Edelbrock headquarters in Torrance, California, for the ultimate in quality. 065" bore and 4. Edelbrock Supercharged GEN III 6. This may be why we wonder. This gasket set includes all necessary gaskets for cylinder head installation, including cylinder head, intake, exhaust, waterneck and valve cover gaskets. Of course that's for the factory cast iron heads. The TFS 170cc heads will run you $1050 and flow as well as AFR 185s. 2) Fully clean the cylinder head intake flanges and the engine block end seal surfaces. will work on pretty much ANY aluminum head. All I can find are generic specs for the 5. ” However, their thin cross section allows for a high-velocity and smaller-volume runner design with excellent flow. This is per Edelbrock instructions. My manual only goes up to 1996. The 4V heads have much larger intake and exhaust ports (2. Many pistons require a tighter bore). Big Hp / Torque Gains from factory. com engine tech seminar in Owensboro, KY, I had a client tell me that he replaced a set of A-429 heads (Ford aluminum Cobra Jet) with P-51's. 9 Magnum Intake Manifolds. Edelbrock Performer RPM heads produce outstanding horsepower with excellent low speed torque and throttle response. 2) Fully clean the cylinder head intake flanges and the engine block end seal surfaces. Does anybody know the torque specs for Almuninum heads (I have the GT-40 Trurbo-Swirls) for a 92 5. This is the first D port head on the market to incorporate the latest developments in cylinder head technology into it. We found the listing for "L" series plugs under "Allard, L-head". Aluminum has a higher coefficient of expansion than cast iron. a 100% brand new GM ZZ short block with forged steel crankshaft, powdered metal rods and hypereutectic pistons, Edelbrock E- TEC 170 heads, Rollin' Thunder hydraulic roller camshaft, roller rocker arms, RPM Air-Gap intake manifold and Thunder Series AVS 800 cfm carburetor. i had to really tinker with timing to keep pre det at bay. aluminum heads / gaskets I recommend buttoning up the motor with all torque specs, then removing the intake to inspect the gaskets between the heads and intake. 00 This Eddies Performance Ford 351 5. After installation of the Edelbrock heads, intake, and COMP cam, the power output of the 454 jumped to 481 hp at 5,500 rpm and 527 lb-ft of torque at 3,800 rpm. Let's start with the Edelbrock head being made of aluminum and what that means as far as performance goes, an aluminum head has many advantages over just shaving weight. 2"), Comp Hyd. 065" bore and 4. While viewing the part detail page, click on the "specs" tab. ARP: Following the manufacturers recommended torque sequence tighten the nuts in three equal steps to 80 ft lbs. Due to the valve springs this aluminum cylinder head from Edelbrock is designed to be used with a hydraulic flat tappet cam. That is nearly half that of an original Chevrolet iron head. components: Head bolt reducer bushings 1/2" hole to 7/16" stud/bolt- TFS-51400419 Head alignment dowels- TFS-51400420 A. ENGINES AND ENGINE KITS 38 TECH TIP: When looking at peek horsepower and peek torque it is very important to look at the RPM range over which these numbers appear. Aluminum vs. Edelbrock recommends Edelbrock/JE pistons for 95 C. 650 inch intake/exhaust valves with the lightweight 11/32 inch stems. 7 to 10 pound feet for every. Not only do these heads feature larger ports and valves, they are also lightweight to give you the. The unique design of the Edelbrock® cylinder heads incorporate three exclusive features within the Performer™. These Mustang aluminum cylinder heads are the perfect upgrade for your Fox Body or SN-95. For Chevy Small Block 302/327/350/383/400 SBC 200cc Intake 68cc Straight Aluminum Bare Cylinder Head. AFD delivers high quality cylinder heads made from 6061 T-6 alloy delivering higher than expected quality and performance from our superior experience in cylinder head design spanning over 30 years. HINT: The "torque pattern" on ALL cylinder heads is start in the center and work your way toward the ends. Not only do these heads feature larger ports and valves, they are also lightweight to give you the. Edelbrock aluminum e-tec 200 heads fel pro gaskets ARP bolts What torque spec do I use? The head and gasket 'instructions' say nothing. You need to basically torque them down in sequence to the first step, then go back through and torque them down to the next. number for EGR equipped applications. i had to really tinker with timing to keep pre det at bay. High-velocity airflow through the ports in the heads leads to better acceleration, improved midrange, and great throttle response. Small block 5. Now being that there aluminum im guessing back off on the torque specs a little? Id hate to strip a thread half way through the install, Im using new Head bolts (NOT ARP Just stock replacements) I need the Torque rating for Heads to Block,. intake manifold 289-302 c. Torque Specs for Edelbrock Performer RPM Heads Im about to slap on these heads and i dont know the torque specks to these and the torque sequence. The GT-40 spec, aluminum intake into aluminum heads, is also given as 32-35#-ft. I want to swap the existing heads on them with aluminum. † Head Bolts or Studs:High quality head studs or head bolts with hardened washers must be used to prevent galling of the aluminum bolt bosses. * Rocker shaft bracket bolts 25 ft. Performer™ heads are street legal in all 50 states when used with Edelbrock manifolds. • Lubricants: For added performance and protection, we recommend using Edelbrock performance lubricants. MyMopar is the best Mopar forums and site on the web. 3) Apply Edelbrock Gasgacinch sealant PN 9300 to both cylinder head flanges and to the cylinder head side of the gaskets, allow to air dry, and attach the intake gaskets. I only went through one round of tightening for each manifold. I think I blew a head gasket this weekend due to the heads not being torqued down correctly. Make sure threads in the head are clean and in good. I did what my aluminum head manufacture recommended. 8L with 425 HP Crate High Performance Motor Special Internet Price $6,699. Ford Y-Block Aluminum Head Testing Part I December 15, 2010 Ted Eaton The much awaited for Mummert aluminum cylinder heads for the 292/312 Ford Y-Block engines are now a reality and have been tested on the DTS engine dynamometer. The Edelbrock Performer RPM cylinder heads use 2. After ALL this time here it is, installed on Aubrey's 409 4 speed station wagon. Aluminum vs. 8L series II engine, 1998 LeSabre. Pace Performance offers world famous engine combinations that can't be beat!. Crankshaft rear bearing seal retainer bolts 30 ft. 71" exhaust vs. EDELBROCK PERFORMER™ CYLINDER HEADS Increase your torque 35% and your horsepower by 42% with the Edelbrock® package of Performer™ and Performer RPM™ aluminum cylinder heads and intake manifolds. Sorry I don't have all the specs with me right now, but I'm currently running the following: Block bored. This aluminum head from Trick Flow produced 496 lb-ft of torque at 4,000 rpm and 455 horses at 5,300 rpm. These features improve the engine's efficiency, resulting in more horsepower and torque. Features: Premium alloy: Dart aluminum heads are cast from virgin 355-T61 aerospace alloy for superior strength and integrity. Designed for 1965-79 389-455 c. LS3 stroker with 4. Out-of-the-box bolt-on performance. Search Car Torque Specifications by Engine or Model. Intake valves are used for stock pistons. , EachBR Victor Jr. Also listed are the torque specs for the Edelbrock Aluminum FE head which is buried in their documentation. Edelbrock's Valve Cover's will provide you with not only good looking classic looks but these die cast aluminum valve covers have a rigged sealing surface for a leak fee seal. I was just wondering if that extra 5 ft lbs would hurt anything. com/product/jeep 561-427-8285. I have the Edelbrock Performer Rpm heads with the 84cc(82. Header Bolt Specs SLP's spec was 28 ft. Torqueing the header pipe bolts. I am trying to guesstimate what kind of power and torque increases I would gain. 50-State Legal For Use on Pre-Pollution Controlled Vehicles (PPCV). 140 inch intake/1. You might as well shoot for 400hp if you go aluminum. So what's going in my Attack? "Project Blitzkrieg" Top Secret nowadays In the meantime: 2003 Mazda 6S, debadged, demolded, Hurst T-handle shifter, MSD Stacker-8 Ignition, 160F t-stat, throttle body grounded and coolant bypassed, blackened headlights, Boston Acoustic ProSeries 6. This car features a traditional Pontiac 400 ci engine with Edelbrock heads and round port headers, fully programmable Electronic Fuel Injection (custom unit by Butler Performance) 4L80E transmission, Moser 9" rear, Baer Brakes, and all factory accessories. 00" bore diameter. These heads are a permanent mold type of head and we have no knowledge of their quality control relative to things such as gas pockets (porosity) and core shift. The 4V heads have much larger intake and exhaust ports (2. The Edelbrock Performer RPM cylinder heads use 2. To find the manufacturers recommended torque setting, please enter the spark plug number in the search box. Edelbrock’s E-force 6. have the intake ports match the heads also. Edelbrock Performer RPM heads produce outstanding horsepower with excellent low speed torque and throttle response. 500" offset shaft rockers and. Now, if you ran a set of heads that flowed 375 because of improper porting or seat work, and then reworked them to flow 400, they would for sure make more power. Dedicated to all things from Mopar, Chrysler, Dodge, Plymouth, and Desoto. also for the rocker bolts,and do ineed to use lock tight onthe rock … read more. , EachBR Victor Jr. 7 aluminum intake manifold? With iron heads, the stock spec for iron intakes of 30ft-lb should do. EDELBROCK PERFORMER™ CYLINDER HEADS Increase your torque 35% and your horsepower by 42% with the Edelbrock® package of Performer™ and Performer RPM™ aluminum cylinder heads and intake manifolds. aluminum is a more maleable (softer) than cast iron, and, the stresses on the aluminum stud bosses would allow the pressed in studs to loosen and pull very quickly overt those in cast iron heads. 289-302 Automobile Parts pdf manual download. The 351 intake, on the other hand is torqued in three stages to between 23 and 25 lb-ft. Edelbrock recommends Edelbrock/JE pistons for 95 C. Details Here: Edelbrock also makes heads for the Magnum. So what's going in my Attack? "Project Blitzkrieg" Top Secret nowadays In the meantime: 2003 Mazda 6S, debadged, demolded, Hurst T-handle shifter, MSD Stacker-8 Ignition, 160F t-stat, throttle body grounded and coolant bypassed, blackened headlights, Boston Acoustic ProSeries 6. 500" offset shaft rockers and. 4L Based Chrysler 426 HEMI Crate Engine without electronics - 46126. The following guide is designed to help you determine which Edelbrock components are legal for use on your vehicle. The administrator has banned your IP address. When you design and sell the best-engineered performance products in the world, you have to have a rigorous testing program. After installation of the Edelbrock heads, intake, and COMP cam, the power output of the 454 jumped to 481 hp at 5,500 rpm and 527 lb-ft of torque at 3,800 rpm. Manufactured in the USA by Edelbrock, these E-Street cylinder heads feature A356 aluminum castings that are heat-treated to T-6 specs for superior casting strength and quality. A shorter pipe improves torque after the peak (reduces it at lower RPM), preventing the torque curve from falling off so quickly as speed increases. Same as above except: Block resleeved to 4. CFE provides world class cnc ported racing heads, fabricated intake manifolds, and billet blocks for a wide variety of racing applications including: drag race, circle track, boat, offroad, and road racing. This is the first D port head on the market to incorporate the latest developments in cylinder head technology into it. Reduce torque setting to 35-40 ft lbs for aftermarket aluminum heads or as. The following 93 octane street/strip pump gas engine packages are complete crate engines from carburetor to oil pan and water pump to flexplate. 50 state street legal aluminum cylinder head. com/product/jeep 561-427-8285. Not only do these heads feature larger ports and valves, they are also lightweight to give you the. Edelbrock Performer RPM heads produce outstanding horsepower with excellent low speed torque and throttle response. The lower torque capacity was 132 in lb and the upper was 89 in lb. The specifications given are for the typical 350 engine. its a 1984-85 block. The administrator has banned your IP address. edelbrock aluminum heads 60cc combustion chamber with bronze guides stainless steel swirl polished intake valves stainless steel swirl polished exhaust valves hard seats for unleaded or regular fuel heavy duty 1. View and Download Edelbrock Victor Jr. Cast from A356 aluminum and heat-treated to T6 specs. 8L series II engine, 1998 LeSabre. With its 195cc intake ports and 215-cfm flow numbers at. Yes, we do modify aluminum intakes. These are the ultimate Edelbrock race heads!. just wanting opinions on performance improvments with swap. Notes: *Edelbrock offers the 2. The KRE Aluminum D port Pontiac cylinder head has been on the market since 2004. i am replacing my cylinder heads with aluminum heads. This will help ensure you have the correct installation procedure for. Make sure the exhaust gasket surfaces on your heads are straight & clean - Get a light down in there and get a good look at them. Edelbrock manufactures this cylinder head out of a solid piece of aluminum. Aftermarket aluminium heads have unique torque settings, so manufacturers' guides should be consulted. Manufactured in the USA, by Edelbrock, these heads feature A356 aluminum castings that are heat treated to T-6 spec for superior casting strength and quality. While we try to get as close as possible to the exact part, it is not always possible. Cylinder head bolts 70 ft. Big-block head bolt torque pattern. With its 195cc intake ports and 215-cfm flow numbers at. CFE provides world class cnc ported racing heads, fabricated intake manifolds, and billet blocks for a wide variety of racing applications including: drag race, circle track, boat, offroad, and road racing. When you go beyond stock you have to decide who you want to believe. Most installations can be accomplished with common tools and procedures. Edelbrock Performer RPM heads produce outstanding horsepower with excellent low speed torque and throttle response. Aluminum vs. ©2012 Edelbrock, LLC Rev. At this torque spec they repeatedly backed out all the time - even with the thick flanges. Search Car Torque Specifications by Engine or Model. wondering if anyone could tell me how much increase in torque and hp with the aluminum heads over stock 906 heads. Edelbrock Performer RPM Cylinder Head - Ford 429/460 Big Block, Assembled Image may be a representation of product. Yes your torque specs will be different with aluminum heads than cast. Performer™ heads are street legal in all 50 states when used with Edelbrock manifolds. Trans is stock (bought it with this combo in car) with a shift kit and handles the torque just fine. GM Engine Torque Specifications and Sequences. Stock head bolts get torqued to 70 ft-lbs in three steps of 40, 55, and 70 ft-lbs. Of course the criss cross pattern needs to be used. All Pro Heads is the Industry Leader in Small Block Chevy Aluminum Cylinder Heads, (as well as the new Generation 3 and Mopar W9RP) , catering to the hard core racer always looking for the perfect design for a specific application. Stock Pontiac Head Specs * During my searching for information, I found quite a few discrepancies in the sources I was viewing. We recommend Edelbrock Head Bolt Kit #8550. 180" offset lifters, reducing pushrod angle which improves valvetrain stability. 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. "There was a stigma about the strength of aluminum, but that's been addressed in the way aluminum heads are now produced," Gamble said. Guess the real question isGT40 heads worth it on stock engine? A good aluminum head(AFR 165 or TFS TW 170) is worth close to 90hp more than a E7 head on a. Cylinder Heads and Accessories. Small Block Chevy (283 327 350 400) Head Torque Sequence. 000" stroke. Cylinder Head Bolts Fig. of torque at 4,200 rpm. Use RTV silicone sealer instead. components: Head bolt reducer bushings 1/2" hole to 7/16" stud/bolt- TFS-51400419 Head alignment dowels- TFS-51400420 A. If you are going into aluminum heads, you do not want to go very. its a 1984-85 block. See the “Acid Intake” section. The torque specifications for Chevrolet 350 cubic inch V8 head bolts are 65 foot-pounds per bolt if securing the stock cast iron head. Power Port® 351 Cleveland Aluminum Cylinder Heads on the Technical Specifications sheet for specific part It is not necessary to re-torque the head bolts after. Trick Flow products perform as advertised and exceed customer's expectations for performance and value. 8 with SVE performance aluminum cylinder heads. Next up the ladder is the Edelbrock Victor Jr. For our new Cylinder Heads page, please visit: http://store. The Edelbrock Jeep Edelbrock Performer Rpm Cylinder Head, Aluminum | 1967-1991 with 343, 360, 390 or 401 Engines, by Edelbrock is brand new. Most will probably list the OEM torque and I would have to say they know. 400-inch lift it was a good. They are ideal for engines that operate up to 5,500 rpm and they have all of the quality and features of much higher priced heads. To find the manufacturers recommended torque setting, please enter the spark plug number in the search box. 30 over, mild comp cam, comp stock style roller rockers and I'm assuming stock style pistons. Torque specs on an aluminum edelbrock intake for a 350 chevy moter? Im installing a edelbrock perfomer/rpm intake on my chevy 350 small block and need to know the recommended torque settings. CFE provides world class cnc ported racing heads, fabricated intake manifolds, and billet blocks for a wide variety of racing applications including: drag race, circle track, boat, offroad, and road racing. Notes: *Edelbrock offers the 2. 0L very high-buck stroker. will work on pretty much ANY aluminum head. Edelbrock Chevy Cylinder Head Bolt Kit, Small Block Edelbrock Chevy Aluminum Water Pump, Short Style, Endurashine Finish, Small Block 310hp/375 Torque, Cast. Even better was the fact the Edelbrock heads and intake will support much more power if we decided to upgrade the short block in the future. Ford 351 CI Small Block Windsor w/ Aluminum Heads 370HP 390FT/LBS TQ. Edelbrock's all new line of heads are designed for entry-level street performance engines and ideal for operating in the idle to 5500 rpm range. Which manufacture? Original engine manufacture, gasket manufacture, head manufacture, or fastener manufacture. The 350 Buick engine has a surprising amount of performance potential, but it has been hampered by the lack of a high performance intake manifold. Big Block Ford 390, 427 and 428 (FE) Head Bolt Torque Specifications 90 Ft/Lbs. engines with Performer RPM™ Twin Cam® heads. its a 1984-85 block. how much from factory heads on hp do you think i will gain ???. I think they are "missing the boat" a bit by not offering a Magnum compatible head with the LA bolt pattern. 180" offset lifters, reducing pushrod angle which improves valvetrain stability. They have 76cc combustion chambers and include 2. Once they reach this zone, they spring back to provide a precise level of clamping force over the entire. Aluminum (aftermarket) heads and intake manifolds require a different torque than stock cast iron units. Find Edelbrock Cylinder Heads and get Free Shipping on Orders Over $99 at Summit Racing! Cylinder Head, Performer RPM, Aluminum, Assembled, 63cc Chamber, 171cc. Small block 5. However, no problems have shown up in these Pro Comp heads after doing our CNC porting program. After installation of the Edelbrock heads, intake, and COMP cam, the power output of the 454 jumped to 481 hp at 5,500 rpm and 527 lb-ft of torque at 3,800 rpm. just wanting opinions on performance improvments with swap. A longer pipe extends the torque curve backwards to improve the engine's flexibility, at the expense of after-peak torque. The table below lists the torquing specifications for most spark plugs being installed in either cast iron or aluminum cylinder heads. All Pro Heads is the Industry Leader in Small Block Chevy Aluminum Cylinder Heads, (as well as the new Generation 3 and Mopar W9RP) , catering to the hard core racer always looking for the perfect design for a specific application. These all-new Edelbrock E-Street cylinder heads are just the ticket. Edelbrock Aluminum Round Port Cylinder Heads. just wanting opinions on performance improvments with swap. Allard sold a lot of their cars with Ford flatheads with aftermarket aluminum heads. Cast from A356 aluminum and heat-treated to T6 specifications. I think they are "missing the boat" a bit by not offering a Magnum compatible head with the LA bolt pattern. I am trying to justify the 2 grand + it would cost me to have a set of new aluminum Edelbrock or equivalent heads on my 402 Chevy Big Block. Sorry I don't have all the specs with me right now, but I'm currently running the following: Block bored. While we try to get as close as possible to the exact part, it is not always possible. They are ideal for engines that operate up to 5,500 rpm and they have all of the quality and features of much higher priced heads. You need to follow the instructions that came with the bolts. These Edelbrock CNC-ported aluminum heads, which come in black, gray, polished, or natural finish, have NASCAR-racing-inspired rectangular-shaped intake ports and 'D'-shaped exhaust ports. TURN KEY ENGINES - DROP IN CRATE MOTORS INTERNET SPECIALS! Custom Engines By Eddies Performance Ford 351 5. Next up the ladder is the Edelbrock Victor Jr. These heads are designed to use 1/2" head bolts. Search Car Torque Specifications by Engine or Model. Check local laws for requirements. Re: Issues with using Aluminum heads on Iron Engines Aluminum heads will corrode-eventually. Guess the real question isGT40 heads worth it on stock engine? A good aluminum head(AFR 165 or TFS TW 170) is worth close to 90hp more than a E7 head on a. 66" exhaust) than the 2V heads. I'm running 87 octane with as much advance as I want with at around 9. per head for your average iron head. DESCRIPTION: Edelbrock E-Street Cylinder Heads are designed for street use, and are interchangeable with 1986 & earlier 302, 327, 350, and 400 c. This is per Edelbrock instructions. Our webstore is loaded with Boat Parts & Accessories, as well as Marine Longblocks and Marine Engines. Page 4: Manifold Bolt Torque Sequence. up above I have a victor junior open plane race manifold and a 750 holley dbl pumper. 8:1 compression with no pinging. i have plenty of compression based on my cylinder pressures 195-200 in all holes. I am buying a recently rebuilt 289 bored. Unfortunately, the 351C 4V heads are not a good choice for a low RPM truck engine. You need to basically torque them down in sequence to the first step, then go back through and torque them down to the next. These all-new Edelbrock E-Street cylinder heads are just the ticket. 400″ thick deck for use with nitrous, ultra high compression, and turbo/superchargers. 11-10-11 12:08 PM - Post# 2156494 In response to busterrm I sure see the absolute requirement, not just 'need' for screw in studs on any and every aluminum head with stud rocker arm setups. just wanting opinions on performance improvments with swap. The BoxWrench Engine Specs Database is a community resource for mechanics of all skill levels to access a reference library of Firing Orders, Distributor Rotation Directions and Block-Cylinder Numbering as well as Torque Specs, Timing Settings and Cylinder Head Tightening Sequences among other engine specs. Pontiac engines, these heads are patterned after the 1969 -70 Ram Air IV Pontiac cylinder head. A shorter pipe improves torque after the peak (reduces it at lower RPM), preventing the torque curve from falling off so quickly as speed increases. Patterned after the popular Edelbrock heads, 95cc Combustion Chamber,Open Chambers, 275cc Intake Runners,. They have 76cc combustion chambers and include 2. Big Hp / Torque Gains from factory. These heads do not have an exhaust crossover passage and therefore do not have an E. edelbrock aluminum heads 60cc combustion chamber with bronze guides stainless steel swirl polished intake valves stainless steel swirl polished exhaust valves hard seats for unleaded or regular fuel heavy duty 1. 7 motor with roller lifters. 19" intake & 1. E38-5089 ;Description:E-Street cylinder heads are an all new line of Edelbrock heads designed for entry-level street performance in modern street rods, muscle cars and trucks. The 7111 has ample aluminum for port matching and good gasket sealing. E-Street» cylinder heads are an all new line of Edelbrock heads designed for entry-level street performance engines, ideal for operating in the idle to 5,500 rpm range. 8 Cougar; Looking at Engine from. Use RTV silicone sealer instead. Figure 2 - Cylinder Head Bolt Torque Sequence Torque Bolts to 65 ft. com/product/jeep 561-427-8285. engines with Performer RPM™ Twin Cam® heads. Torque the bolts in the three stages. wondering if anyone could tell me how much increase in torque and hp with the aluminum heads over stock 906 heads. The cast Dart logo is the. While we try to get as close as possible to the exact part, it is not always possible. $3599These are the evolved version of the old Bulldog aluminum heads. This will help ensure you have the correct installation procedure for. 7 to 10 pound feet for every. Mondello Performance manufactures and sells quality custom Oldsmobile performance parts and engines. 400-inch lift it was a good. While accuracy is a main goal of this page, it is not guaranteed. 600 s/s valves. big block Chevy engines, these Edelbrock cylinder heads include heavy-duty exhaust valves that provide the added durability needed for marine applications, and have one-piece, stainless steel intake valves with hardened tips and swirl-polished. Shorter bolts. and, for factory "690" / "583" large port, as well as the high performance aluminum cylinder heads manufactured by Bob Walla Racing, (available right here), or Edelbrock aluminum cylinder heads the. Aluminum heads call for lower torque specs and it is recommended that the mechanic re-check the torque after the engine has run up to temp and then cooled (in other wordsafter it has cooled from running). 04" intake & 1. That's the kind of weight loss you'll feel in handling responsiveness, drag launches, and pretty much anywhere else that weight transfer occurs. I have the Edelbrock Performer Rpm heads with the 84cc(82. Some manifolds feature a reinforced aluminum coolant crossover to eliminate corrosion and vibration (where applicable) Reinforced EGR and coolant passage walls for increased manifold durability (where applicable) Torque specifications & bolt tightening sequence are provided for easier installation (where applicable). I know nothing about the specs on cylinder heads and what can be run with what. Reduce torque setting to 35-40 ft lbs for aftermarket aluminum heads or as. 530" Stroke, Pump Gas Dyno Tested & Tuned, Fully Prepped Stock 400 Block, Indy 440-EZ Heads (2. My question was are the torque specs. Make sure threads in the head are clean and in good. Thanks Also anyone know the torque specs on the bolts for the accessory brackets with aluminum heads?. Torque Specs for Edelbrock Performer RPM Heads 5. After installing the Edelbrock Performer heads, the 302 blasted out 383 hp and 364 lb-ft of torque, for a gain of 78 hp peak to peak. Manufactured in the USA, by Edelbrock, these heads feature A356 aluminum castings that are heat treated to T-6 spec for superior casting strength and quality. I am sure they got the specs for which plugs to use from the supplier of the heads for their engines. 750 stroke crank , aluminum t6 6. The 351 intake, on the other hand is torqued in three stages to between 23 and 25 lb-ft. These heads do not have an exhaust crossover passage and therefore do not have an E. 180" offset lifters, reducing pushrod angle which improves valvetrain stability. These Mustang aluminum cylinder heads are the perfect upgrade for your Fox Body or SN-95. Which manufacture? Original engine manufacture, gasket manufacture, head manufacture, or fastener manufacture.