454 2 Bolt Main Torque Specs

The Antique Tractor Resource Page, Your home on the net for Antique Tractors! Tell your friends and associates about us. I have a set of peanut ports heads here removed from a 1986 454 that belong in the scrap yard for all they are worth. ) I used the micrometer to verify the crank main journals (2. Every single product we sell undergoes extensive testing and analysis to ensure the end result is a superior product that can withstand demanding race conditions. Tighten the M8 cylinder head bolts (11-15) to 30 N. ARP main studs feature a 200,000 psi tensile strength. Jim Wick LPX. DRCE II Raised +. 2 Bolt Main Bearing Caps. I have it at 35 lb ft. Conventional tightening procedure calls for tightening down the four corners to about 50 percent of torque. What is interesting is that I will tigten a bolt and the torque wrench will not click, then I tighten the other bolt and it clicks. I'm not sure of the Torque specs. Bolts or PartsLube or SealerTorque to: Main Caps 396-427 (2 bolt) Engine Oil95 ft-lbs. The trans has a 30 spline shaft. Does anyone know what the bolt should be torqued to that holds the harmonic balancer on? What about the bolts for the crankshaft pulley? I have a SBC 350 and am putting on aluminum serpentine pulleys. Before completing our Bolt-Ons for Beginners testing, we made one last change by swapping out the Weiand and Q-Jet for a more performance-oriented induction system. Changed the rear main seal and can not find the specs to torque the main cap. 1970 enlarged the "Big Block" (known as the Rat motor) to its largest displacement at 454 ci. These aftermarket main caps will strengthen not only factory 2 bolt blocks, but also 4 bolts. To prepare the threaded holes select a small stiff bristle nylon cleaning brush as found in engine brush kits available from online retailers. (Super Duty) option. 1971 R-code (Boss 351) The 1971 R-code "Boss 351" used higher compression (11. 3L Vortec motor is built on the small block V8 framework, applied for the creation of many LS lineup motors for Chevrolet Corvette. 1-5 7/16” bolts - 65 ft lbs 1 & 5 3/8” bolts - 35 ft lbs. Wet Sump - Main Priority Oiling (can use dry sump) 350 main = Stock shaft (. ARP ® main bolts are designed to meet the exacting standards and demands of professional engine builders. Re: 454 mains bolt torque I checked the service bulletin index for any changed specs for your engine and didn't find any. I installed the main caps and the bearings then torque them to spec. A singlepiece rear oil seal helps reduce oil leaks. 5L Diesel engine, in a GM P-30 stepvan, for the Harmonic balancer, or crank damper bolt. Intake Manifold 30 ft. The engine block threads and the. Note the differences between a big block (396/454) 2-bolt main (upper photo) and 4-bolt main (lower photo) block above the oil filter location. for 1/2" bolts or studs (351W) in three or four steps following the factory tightening sequence. Components are interchangeable from each displacement, other than 265 & 301, which are only compatible with themselves. Other lubes, moly, and aftermarket bolts will have different torque specs. The larger cubic inch allows for more low end torque is a good. Because the 351W has larger (1/2 inch) head bolts than the 289/302 (7/16 inch), you need bolt spacers, available from Summit Racing Equipment and other aftermarket sources such as ARP, which enable you to install 351W heads on a 289/302 using the 289/302 head bolts. Small block chevy torque specifications for Main Caps, Connecting Rods, Heads, Cam Sprocket, Rocker Studs, Oil Pump, Timing Cover, Harmonic Damper, Valve Covers, Oil Pan, Exhaust Manifolds, Intake Manifold and Spark Plugs. Fits like a glove. Dry or dirty threads produce friction which prevents accurate. 185" bore and 4. Standard camshaft for Mercruiser 400,405,420,425HP & 525SC 454ci engines. The 454 CID small block V8 is a Motown Hardcore 454 crate engine that is rated at 600 horsepower and 575 ft. Bore x Stroke. 748″) then I used the bore gauge on the main bearings (2. it would be nice to have them in ft. -Base on test results, I would never use anti-seize on cylinder head bolts, or other critical fasteners other than spark plugs. Please call us for specs on it. The high-velocity flow capabilities of Edelbrock Performer RPM cylinder heads provide increased torque across a wide rpm range that's ideal for marine use. 17 years only building marine engines. I cannot find info on this site on how to remove the valves. 500 bore 600+ lift soild roller camshaft. They aren't as critical as a main cap or head, so I felt comfortable going that way. always torque bolts in three equal increments. 500 bore 600+ lift soild roller camshaft. According to the 454 engine manual, Torque Specifications (oiled threads): Cylinder head 80 ft. Including a Large Selection of New, Used and Surplus Engines for Sale. 9425" Main Cap Material Nodular cast iron main caps Main Cap Fasteners 1/2-13 UNC (torque spec. The engine delivers some 400 pounds-feet of torque at 5,250 rpm. While this bolt design works well in some applications, the extremely high compression and cylinder pressures of a 6. and clue what the stock horsepower rating is???. com INSTALLATION METHOD FOR MAIN STUD KITS 200,000 PSI 1/2 inch Diameter 1. The bolt is stressed up to the proofload value, and if there is no deformation, elongation, or fracture, then the bolt is deemed to have passed. this bare block used for this engine is a o e m gm block, has been reconditioned / re-manufactured. Repower a Chevy SS 454 With Heads, Cam & EFI Part 1 Block Upgrade 2 to 4 Bolt Mains. SD Connecting Rod Bolts: Assembly Lube: 65 ft-lbs. NOTE: Due to the number of application variations, the LSX454 crate engine does not include an oil pan. 110 ft-lbs. this is the "502 tow" version with non-adjustable valve train and roller cam, i would imagine the specs are the same as the 2000 454 but i dont have those specs either. Specify desired rod bolt part number when ordering. I can only say from reputation in SBC's and BBC's that splayed main bolts are stronger ,splayed main studs even more so and that from my stock car days that stock 4 bolt SBC's are weaker across the caps than 2 bolts. Find CHEVROLET 7. The motor I am looking at is a 454 w/425 [email protected] RPM and 500 ft. from 1999 to 2007. Torque-To-Yield Bolts MUST NOT be reused. Engine Oil 110 ft-lbs. Cast Iron with 4-bolt Main Caps. CHEVY 60-DEGREE V6 GROUP 0. Big Block Chevy V8 - BBC - Engine Specifications 396-454 CID - BBC Firing Order Torque Specs Always torque bolts in three equal. FREE Racer Classifieds. See Dyno Chart. Specify desired rod bolt part number when ordering. Torque Specs - Main Caps 1 - 5 1/2" bolts 100 ft lbs W / CMD# 3 2 - 4 1/2" splayed 100 ft lbs Dart’s inner head studs 3/8” – 7/16” stepped 50 ft lbs Standard BBC oil filter is used. Main Bearing Cap Bolts Type. DRCE II Raised +. , 2-bolt main 184-5001 350 c. Failure to do this may result in broken bolts. Would that mean its a tall deck block?. We prefer to scrub the main cap bolt threads with a brush and brake cleaner and then blow them out with air to get them spotlessly clean prior to assembly. 250" Stroke, Bored. Lets face it ,the BBC has enough torque in std form and can easily handle a bit of boost. Engine bolt torque specs are usually specific to a particular engine. Engines: 350/330 HP, 383/360 HP, 383/425 HP, 454/450 HP, 496/530 HP, 572/620 HP. pac valve springs. Buick GSX Stage 2 specs. Also don’t forget to oil the threads and just under the head of the bolts as well as use some thread sealer on the lower bolts, as they run into the water jackets on the blo. A well kept secretFor Automotive Literature it is hard to beat E Bay! GM Factory Service Manuals include full detailed instructions for replacing body panels. Engine Oil: 120 ft-lbs. As you can see from the charts on this page, small tube headers do not lose their edge in horsepower and torque until you exceed 5,500 RPM. 3754587 Water Pump Gasket (2) 89017259 Cover Revised Connecting Rod Bolt Torque Specifications For GM Vortec V8s When working on 1997-2008 Gen III and Gen IV Vortec 4. 7L) Application Ft. print on both sides, excluding templates. 2L V8 engines you should follow a new connecting rod bolt torque specification. Recommended torque is equal 75% of the fastener’s yield strength. NO alterations to the mounts or adaptors to the trans needed. 2 shares its bellhousing pattern with GM V-8 gas engines - a diesel transmission will bolt up to a gas engine with no modifications and visa versa. Chevrolet big block 366 396 402 427 454 cylinder head bolts flywheel bolts core plugs cylinder head bolts and stainless engine bolt kits cylinder head bolts / studs and stainless bolt kits for automotive,light truck and marine engines. 4L/454 ARP Main Cap Fasteners and get Free Shipping on Orders Over $99 at Summit Racing! Main Studs, 4-Bolt Main, Dart Big M Block, Chevy, 454, Kit. That really sounds correct to me. The motor I am looking at is a 454 w/425 [email protected] RPM and 500 ft. m Torque Sequences. The Marina assured him that the motor will bolt right up to his drive also. , 2-bolt main 185-5001 TOYOTA Toyota 1600cc 203-5001 MAIN BOLTS Far superior to any other main bolt kit offered for use in competition engines. Disassemble rods and thoroughly clean (including bolt and beam threads) to remove rust preventative. it because it is a Mexican block which has a 2-piece rear main seal. Like a raw canvas or flawless piece of marble awaiting the master’s touch, the block is only as good as the casting itself. 6” 10-bolt is still used in most GM trucks), these housings are the most common on the road, especially for trucks. TTY bolts are taken to a certain stretch point during assembly rather than to a final torque value. As you can see from the charts on this page, small tube headers do not lose their edge in horsepower and torque until you exceed 5,500 RPM. this bare block used for this engine is a o e m gm block, has been reconditioned / re-manufactured. 1 Proofload is the published number that full size headed bolts are tested to. Engine Oil 110 ft-lbs. Also don’t forget to oil the threads and just under the head of the bolts as well as use some thread sealer on the lower bolts, as they run into the water jackets on the blo. More importantly is having a balanced rotating assembly, IMO. Engine Shop. '72 was the last year for chrome front bumpers, side bright "egg crate" grills, and the removable rear window. 7L) Application Ft. 3L is mainly employed for trucks and SUVs. Tighten all bolts with a conventional inside to outside pattern, using oil. Cast from A356 aluminum and heat-treated to T6 specs. 454 Power Build After a successful budget build, the HorsePower guys go hog wild with their 454 big block Chevy in an all-out performance buildup. Any one know what that number should be ?? I saw a small am't of water stain (rust) under the short bolt. Every rod is carefully sorted in sets by weight. 2L came mated to either the TH400 three speed automatic, Muncie SM465 four speed manual transmission, or New Process NP833 four speed manual overdrive transmission. , 2-bolt main 185-5001 TOYOTA Toyota 1600cc 203-5001 MAIN BOLTS Far superior to any other main bolt kit offered for use in competition engines. Other lubrications offer reduced friction and increased bolt tension, and will affect the torque figure. Proper bolt torque: Torque rod bolts to 10 ft lbs on both sides, then torque to proper spec with one pull. 50") cylinder bores and large 67mm main bearings. The engine delivers some 400 pounds-feet of torque at 5,250 rpm. The LS5 was a medium-performance engine. Mack Trucks Class 8 Service Bulletin Listing Number Title Publish Date 11/2/2007 Page 3 of 15 SB210023 Mack EO-M Diesel Engine Oil Specification 10/8/1998 SB210024 Test Strips for Testing Glycol, Nitrite and pH Levels in Heavy-Duty Coolant 7/13/2001 SB210027 New Horsepower Curve for E-Tech™ 460 Engine 3/23/1999. The torque specifications for Chevrolet 350 cubic inch V8 head bolts are 65 foot-pounds per bolt if securing the stock cast iron head. Other lubes, moly, and aftermarket bolts will have different torque specs. The cam specs are aggressive enough to produce real power, but the engine will still idle in gear and. My 406 is 2 bolt main and is constantly ran at 7000+ RPMs. When you buy a Corvette, you buy a lot more than a car- you buy an image. 460 4bolt main question That said I want this motor to be as bullet proof as possible and make around 450-550hp. Torque-To-Yield Bolts MUST NOT be reused. While messing with the boost he got it bit too high and both engines detonated badly breaking rings and pistons. diesel, 2-bolt main 184-5002 455 c. 1 Proofload is the published number that full size headed bolts are tested to. Never use any other alternative lube. Each of which has a different torque requirement. Lost your kit instructions? Want to check a torque or stretch value? Enter your kit number in the field below and click "Submit. Standard GEN VI / 8. Torque Specs - Main Caps 1 - 5 1/2" bolts 100 ft lbs W / CMD# 3 2 - 4 1/2" splayed 100 ft lbs Dart's inner head studs 3/8" - 7/16" stepped 50 ft lbs Standard BBC oil filter is used. I've never had one "not achieve" rated torque properly and normally. Search Car Torque Specifications by Engine or Model. it because it is a Mexican block which has a 2-piece rear main seal. 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. Torque Spec. 2 bolt mains,cast cranks but forged low. Chevy Small-Block V-8. BluePrint PS4541CT Chevy 454 Pro Series, Base Engine, Alum Heads, Roller Cam 400 Chevy Small Block V8, 454 cu. Engine oil. I can find specs for 396 and 427 2 Bolts and 454 4 bolt, but not the 2 bolt 454. 110 ft-lbs. it would be nice to have them in ft. Exhaust Manifold 20 ft. Also, I noted the S/S torque specs for 3/4" bolts are spec'd in INCH pounds. A singlepiece rear oil seal helps reduce oil leaks. Get great 45RFE transmission parts at Global Transmission Parts. Eagle does not use "off the shelf" ARP bolts. 2 bolt main from $2195 4 bolt main from $2595, depending upon upgrades requested. 00 Chevy 383 / 350 HP 4 Bolt Performance TBI Balanced Crate Engine Truck Camaro $ 3,095. Main Caps 396-454 (4 bolt) Inner and Outer bolts. These aftermarket main caps will strengthen not only factory 2 bolt blocks, but also 4 bolts. They are regularly re-used. I'm not sure of the Torque specs. m Torque Sequences. Torque Specifications Main Bolts 10. CHEVY 60-DEGREE V6 GROUP 0. 6, ISO 10512 / 10511 / 7041 / 7040, UNI 7473 Specification & Standards in stainless steel, duplex steel, inconel, monel, hastelloy in india. From 95 to 80 lbs. Chevrolet Big Block 2-bolt Main Stud Kit. Please call us for specs on it. ) I used the micrometer to verify the crank main journals (2. The bottom end features a 2-bolt main and cast crank, yet can handle over 1,000HP (some say 2,000. "RBT" Steel Billet Connecting Rods. Reusing stretched T-T-Y head bolts can cause improper or uneven torque, damaged engine threads, and broken bolts, any of which could lead to head gasket failure. APPLICATION: / TORQUE SPEC: AC Compressor Bolts / 37 AC Compressor Bracket Bolts / 37 AC Idler Pulley Bolts / 37 AC Tensioner Bolt / 18 AIR Pipe to Exhaust Manifold / 15 Camshaft. DRCE II Raised +. Starting with a fresh GM LS aluminum cylinder block as the foundation we then sleeve to accept a much larger bore size. I have an excellent machine shop that can add four bolt mains to anything. Verify your engine specs with a service manual for your year and model. You need to remove the mounts off of the old 6. The best source for Mercruiser OEM parts, marine engines, boat & engine parts, accessories, boating supplies, tools, & aquatic sporting goods. When Chevrolet introduces something new- from disc brakes to a hidden headlight system- it usually debuts on Corvette. Torque Spec. 1 Proofload is the published number that full size headed bolts are tested to. new rod & main bearings. TORQUE SPECS: Torque 63 ft. This is a discussion on Torque specs for LS1 motors within the General Help forums, part of the LSx Technical Help Section category;. The bottom end features a 2-bolt main and cast crank, yet can handle over 1,000HP (some say 2,000. A354 grade BD bolts are stronger than A354 grade BC. Using Torque to Yield Bolts. Main Bearings 110 ft. Cylinder head 2: 3993820 F-10-71 The motor is not original and he said was swapped in around 1974. Prior to the late 1940's there were no torque specifications. The 4 bolt is able to withstand greater stability that keeps the main caps from walking during hi RPM use. It used the two-bolt-main engine block, the small-port cylinder heads, a hydraulic camshaft, and a cast-iron intake manifold with a Rochester Quadrajet carburetor. Search Car Torque Specifications by Engine or Model. Lost your kit instructions? Want to check a torque or stretch value? Enter your kit number in the field below and click "Submit. Verify your engine specs with a service manual for your year and model. Closed Chamber - A good way to describe big-block heads is to categorize them as open or closed chamber. Closed-chamber cylinder heads have small combustion chamber volumes for high compression ratios, with even mildly domed pistons. Chase the threads if necessary with ARP Thread Chaser. 1970 Corvette Specs. This leaves you with 2 options: our main girdles or - "that can't be good" - Bubba! The beauty of these kits is that you can use the original main caps, which will only require line-honing. Special thanks to crackeregg for making these documents available in a digital format (saved me a lot of typing!). 13 cu·in) natural aspirated V8 four-stroke liquid-cooled internal combustion gasoline engine, manufactured by General Motors since 1999 to 2007. outer main cap bolt. I actually went through several lists and made some corrections before making this list. Compression 9. In some cases the stretching approaches the bolts’ elastic limit, permanently stretching them. The shop is quoting me an extra $100 if I want the reman engine to have a 4 bolt main versus 2 bolt main. The heads are the 120cc peanut ports cast# 346236. BBC 2 Bolt Mains Limits. My machinist demonstrated why going to main studs without the align hone isn't a good idea - torque the main cap bolts to spec and check the main bearing bore with a bore gauge. SKU 135-5601. Torque Specs - Main Caps 7/16" bolts 65 ft lbs w/ CMD # 3 high pressure lube. Genie: According to my GM/Chevy records your 3955272 Block was indeed used in 69 production, both in 2 and 4 bolt main configuration. The engine block threads and the. m Flywheel Bolts 12. However, the 5. JEGS Introduces 2004+ GM LS Cylinder Head Bolt Kit. Crankshaft. The bolts go straight down instead of at an angle like all previous V8 Engines. If you are lucky enough to find a 389 S. There may be different specifications for different size bolts, bolts in different positions, tightening bolts. A flywheel "cutting tip" or "lathe" type, and a flywheel "grinder" type. s in front of me but its about about 1/2 or less the recommended torque on the first pass. STEP 6: (Torquing the bolt) When tightening bolts, particularly TITANIUM rods, bolts must be torqued to 20% of the total required torque and then in one smooth motion torque the bolt to the final torque spec without stopping. Every single product we sell undergoes extensive testing and analysis to ensure the end result is a superior product that can withstand demanding race conditions. Another big blow for the 454 was the gas crisis of 1973 which pretty much sealed the fate for the motor during this period. of torque @3,750 RPM 4 bolt main bearing block, 2 piece rear main oil seal, aluminum pistons, hydraulic camshaft. The leading manufacturer of universal supercharger kits for street cars, trucks, SUVs, boats, race cars, and more! Gain 50-80% more power using our bolt-on systems. com INSTALLATION METHOD FOR MAIN STUD KITS 200,000 PSI 1/2 inch Diameter 1. 60") valves with higher lift, pushrod guideplates, pushrods with steel inserts on rocker arm ends aluminum impact extruded pistons (flat/notched), moly rings, forged steel crankshaft & 4-bolt main bearing caps, higher capacity starter, and finned aluminum. YES, the 454 bolts directly up to the trans and the motor mounts. 1-5 7/16” bolts - 65 ft lbs 1 & 5 3/8” bolts - 35 ft lbs. To ensure proper thread engagement and accurate torque readings, clean ALL threads in the block. These specs may not be correct for your application. Install rods by bringing cap and beam into alignment. Head bolts M12= 37 ft/lbs first, then 59 ft/lbs then 60 degrees and final step is 60 degrees M8= 18 ft/lbs Exhaust manifold bolts= 42 ft/lbs Intake manifold bolts= 18 ft/lbs The degrees you see are the torque angle method. Crankshaft. Blocks with two-bolt mains have a hole about half this. ATI Ford Flexplates with 164 teeth have an 11-7/16” bolt circle, and flexplates with 157 teeth have a 10-1/2” bolt circle for Ford converters. 1973 Engine Specs Since the engine in the car we are restoring is not a numbers matching engine, we decided to install a new GM crate engine instead. Proper bolt torque is paramount to rod strength and life. E-Mail Head Gasket Specifications Heads, New Heads, Remanufactured Heat Exchangers, Sendure-Johnson Towers-Lehman-Mercruiser-Onan-Perkins-Refrigeration Heat Exchangers & Parts, Sendure-Crusader-Dimensional Drawings. Main cap bolt, 396-427 2-bolt. Part #: BP4967CT. ft] Step 2 = 60 ± 5 degrees Click for Cummins ISX15 and QSX15 engine manuals and specs. 770 long 60 ft lbs M8 side bolts 20 ft lbs (use RTV sealant under the head of bolt). Wet Sump - Main Priority Oiling (can use dry sump) 350 main = Stock shaft (. Either bore it out to something over that you know you can find the bearings for or have them cut the caps and re-bore it to stock. Note: the factory final torque specification is 50 ft/lbs. Hope that helps. Cummins engine information (flywheel housing SAE sizes, service manuals, and torque specifications). What is the torque specs for the heads on a chevy 454 - Answered by a verified Chevy Mechanic We use cookies to give you the best possible experience on our website. We love ARP bolts, as they can hold up in almost any circumstance. The LSX 454 Crate engine is lighter, More compact & more efficient than the original Big Block 454. 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. 45-inch mains, compression heights varied, and in 1968 Chevy started to introduce new bore and stroke combinations like the 307. Have to hunt a little to get to some. The 389 was also the first engine by Pontiac to come with the S. Edelbrock is the most respected name in performance! Since 1938, Edelbrock has manufactured its core products in the USA for quality and performance. & Comparison Chart. The L19 TBI, or throttle body injection, powered 1987 and later trucks as the second 454 engine option. m (22 lb ft). However, the 5. Listed here are the general torque recommendations for most ARP fasteners. to be unitized in accordance with gm specifications. Closed Chamber - A good way to describe big-block heads is to categorize them as open or closed chamber. Includes 30 month / 50,000 warranty & BPE Dyno Promise. Inner studs - 4. First the inner main cap bolts, secondly the windage tray bolts, lastly the main cap tie (horizontal) bolts. Meaning old ones can break prior to getting torque. Re: 454 mains bolt torque I checked the service bulletin index for any changed specs for your engine and didn't find any. The 2-bolt main block has the 5/16" front hole that is not drilled and tapped into the oil galley, the center hole is drilled and tapped into the oil galley with a 3/8. Fastener Type. Bolts or PartsLube or SealerTorque to: Main Caps 396-427 (2 bolt) Engine Oil95 ft-lbs. Buick GSX Stage 2 specs. Unlike the factory caps, these not only have more cross sectional strength, but the real secret is in the angled side bolts!. 250" finished bore • 4. Before completing our Bolt-Ons for Beginners testing, we made one last change by swapping out the Weiand and Q-Jet for a more performance-oriented induction system. The seats were redesigned again, this time to create more headroom. Have to hunt a little to get to some. are subject Starter and bolts (High torque gear reduction, mini) $169 4 bolt main, 2 piece seal finished by GM: New, 4 bolt main, 2. 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. In this case 100 ft-lb. If aftermarket hardware is used, follow the manufacturer's instructions for lubrication and torque specs. The Antique Tractor Resource Page, Your home on the net for Antique Tractors! Tell your friends and associates about us. Exhaust Manifold 20 ft. Torque Specs - Main Caps 7/16" bolts 65 ft lbs w/ CMD # 3 high pressure lube. See Dyno Chart. Flywheel 65 ft. These aftermarket main caps will strengthen not only factory 2 bolt blocks, but also 4 bolts. 2L-134ci-S4 Engine Torque Specs. 4 litre engine is a naturally aspirated, overhead valve, 8 cylinder unit that has an output of 380 bhp (385 PS/283 kW) of power at 5200 rpm, and maximum torque of 678 N·m (500 lb·ft/69. This is information that you can never find when you need it so here is a table for the ARP Head Studs, Main Studs, and Rod Bolts Torque Specifcations and Stretch Specs. delivered a conservatively rated 370 hp @ 6,000 rpm and 380 lb-ft of torque @ 4,000 rpm in 1970. My 406 is 2 bolt main and is constantly ran at 7000+ RPMs. These other sellers have cap. All engines are dyno tested on a state of the art DTS dyno and ship with a complete spec sheet 4 Bolt Main. Torque to 70 ft/lbs. What is the torque on cylinder heads for a 1974 chevy truck, 2 barrel, 4 bolt main, 350 engine? Here are all the torque Specs you will need for the small block. m OILED Cam Cap Bolts 1. Both have factory installed 10-3/4” & 11-1/2” bolt circles for GM converters but only the 10-3/4” bolt circle is usable for the 157 tooth flexplates due to ring gear interference. Engine Tech - How much horsepower will a 2 bolt main 454 take? - I was just starting on a 383 engine and I found a 454 bored to 468. The LE8 454 was the most common from 1973 to 1991. The flywheel "step" specification is a very important factor for smooth and proper operation of any clutch. Please note that horsepower and torque variations are from different cam combinations. Cylinder head 2: 3993820 F-10-71 The motor is not original and he said was swapped in around 1974. Years ago we found a universal chart of Torque Values. Tighten the bolts in a criss-cross pattern with 2-3 steps. 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. please advise if you can, thanks. Eagle has ARP custom make bolts to our specifications. The GM / Chevy LM7 is a 5. steps below to install the main bearing bolts. ARP ® main bolts are designed to meet the exacting standards and demands of professional engine builders. Two versions of the optional 454 were available in 1-ton Chevy trucks. Apply torque in 25 ft. Includes 30 month / 50,000 warranty & BPE Dyno Promise. When choosing an engine pay particular attention to the horsepower and torque vs the RPM. It is helpful to have a breaker bar to get these bolts loose. Engines: 350/330 HP, 383/360 HP, 383/425 HP, 454/450 HP, 496/530 HP, 572/620 HP. The troublesome rear main seal was changed from a 2-piece rope design to a 1-piece design that used a mounting appliance. Video: Chevy SEMA Design Awards for Custom Cars Return for 2019. A different 12-bolt differential was used for light truck applications and those 12-bolt units are not interchangeable. The Antique Tractor Resource Page, Your home on the net for Antique Tractors! Tell your friends and associates about us. Tighten the main studs with part numbers MSF54 and MSF64with 135 foot-pounds of torque with oil and 95 foot-pounds of torque with ARP lube. Our Crankshafts Product Search is here to help you find the right crankshafts for your vehicle or project. They are regularly re-used. While it was hard to compare the 1974 Corvette to its slightly older, big-block brothers and sisters, its numbers spoke for themselves. Jim Wick LPX. 00 This product can expose you to chemicals including chromium (hexavalent compounts), which are known to the state of California to cause cancer and birth defects or other reproductive harm. Any one know what that number should be ?? I saw a small am't of water stain (rust) under the short bolt. We also torque most of our aluminum heads up to 95 total foot lbs. 4: KA24DE-34-41-105-112: 105-112: 12-14: 27-35: 14-22: 22-29 3. Hand picked seasoned block, 454 BBC Square and parallel decked Align honed main bearing bore Cylinders honed on computer controlled machine to within. Ultimate Guide to Building Chevy-Big Blocks: Cylinder Blocks Instruction These big chunks of iron or aluminum are indeed the building blocks upon which your entire engine is crafted. 1 kgm) at 3200 rpm.