Sbc intake torque specs aluminum heads - Our Pick 1. Product Name. 5. Purchase Now. 1. DNA Motoring CYLH-SBC-350 Aluminum Bare Cylinder Head Compatible with SBC Engines 302 327 350 383. CHECK LATEST PRICE. If you’re looking for an affordable aluminum cylinder head that’s compatible with SBC engines, the CYLH-SBC-350 from DNA Motoring is definitely a great option to …

 
Oct 6, 2015 · As for the torque specifications, the 289 (above top) and 302 intakes are both torqued in two stages to between 20 and22 lb-ft. The 351 intake, on the other hand is torqued in three stages to between 23 and 25 lb-ft. Ford Head Bolt Torque Sentences and Specs. The torque sequence for all three Ford engines can be seen in the photo above. . Renegade racer

30 Apr 2022 ... How to Clean an Aluminum Intake Manifold ... Small Block Chevy Head Installation,Torque & Torque sequence. ... Installing a Carbureted intake on ...#1 · Nov 9, 2010. Will the vortec head where you bolt the intake down take 30 ft lbs of torque? They were orginally at 30 ft lbs, then discovered the torque should only be 11 ft …Details. Edelbrock part #5001 Torker II intake manifold is designed for 1955-86 high-performance's street 262-400 c.i.d. small-block Chevys. This Torker manifold is a singe plane low rise intake that's great for high performance applications that have limited hood clearance. The manifold has an exhaust crossover for easy cold weather warm-ups ...The torque specifications for Chevrolet 350 cubic inch V8 head bolts are 65 foot-pounds per bolt if securing the stock cast iron head. Aftermarket aluminium heads have unique torqu...GM 350 Intake Manifold Bolts Torque Specifications. by Anne Davis. The 350 is a member of Chevrolet's small block engine family. First built in 1967, this 5.7-liter engine is featured in such vehicles as the Chevrolet Camaro and Nova. Throughout its life, the 350 has had numerous models identified by letter combinations such as L-48 and LT-1.#1 · Jun 12, 2011. Hello all, I just bought a set of aluminum heads to install on my 406 sbc. My question was are the torque specs. different on aluminum heads as to the stock …What is the torque specification for an aluminum intake manifold with aluminum cylinder heads on a SBC 350 (ZZ4)? Most of the spec's I'm running across are assuming cast iron heads, stating 25 ft. lbs. I've also run across spec's indicating 33 ft. lbs. for GM 3.7L (aka 350) but no distinction was made for cast iron or aluminum heads. The ...Subject: Image Created Date: 20080715072442-04007/16 Rocker Arm Stud Kit, intake only, 8 pc ... Chevrolet Big Block Dart aluminum head exhaust bolts only, (8 pieces), ARP Stainless, 12pt Head Bolt Kit. 435-3705: Chevrolet Big Block with Edelbrock Big Victor 12° Heads, 8740, 12pt Head Stud Kit. ...Big Block Chevy Intake Bolt Torque Specifications. 25 Ft/Lbs – Aluminum Heads 35 Ft/Lbs – Iron Heads. The torque spec can be anywhere from 25-35 on Iron heads, but for aluminum I tend to go towards the lower side. IF you do have a spec from the manufacturer follow that. Make sure threads in the head are clean and in good shape.aluminum manifold, aluminum heads, bolt torque. Jump to Latest Follow. 38K views 8 replies 6 participants last post by 1BAD80 Nov 7, 2004. W. william27103 …If in doubt and if you're using an Edelbrock aluminum intake and heads for example then call their 1-800 number to get the right on the money answer. Some manufactures may specify a different torque value for their products,better to know for sure instead of taking a chance and the messing up the threads. :anim_25: :shakehands:Kirk's67SS. 6804 posts · Joined 2011. #2 · Aug 6, 2016. Small Block Chevrolet V8 Engine Specs | Torque Specs - Cylinder Numbering - Firing Order - Distributor Rotation - SB Chevy 267 305 327 350 400 Cid. 67 Chevelle Malibu SS Cdn. Born 283 / PG / A51.ALON: Transparent Aluminum Armor - ALON is the commercial name for transparent aluminum armor made of aluminum oxynitride. Find out how ALON is made and who makes it. Advertisement...23 Apr 2022 ... In this video, Ryan shows you how to install cylinder heads on your engine. He rebuilt this small block Chevy 350 which he pulled out of his ...The specifications given are for the typical 350 engine. The Chevrolet 350 cylinder-head torque specification is 65 ft.-lbs. The intake installed onto cast-iron heads requires 30 ft.-lbs. If your engine has aluminum cylinder heads, the threads are more fragile than the cast iron, so the intake specification is 18 ft.-lbs.JEGS 83250 - 12-Point Intake Manifold Bolts for Chevy, Mopar and AMC [Zinc Dichromate Gold] $13.67. Mr Gasket 135G - Intake Manifold Gaskets Performance Material. $39.95. Mr Gasket 955G - Hex Head, Grade-8. $14.30. JEGS 83200 - Intake Manifold Bolts Small Block Chevy. $8.09. Fel-Pro 1284 - H/P Intake Gasket Small Block Chevy LT1/LT4 Engines. Torque small block Chevy compatible head bolts to 70 ft-lb in increments of 20 ft-lb. Torque BR Series 11 mm studs to . 85 ft-lb and 8 mm studs to 26 ft-lb. Use a drop of 30W motor oil under head of bolt. Make sure head bolts do not bottom . out in block. Sealer should be used on head bolt threads. A re-torque after initial warm up is desired. The torque is 3 then 12 then 15 Newton-meters, with blue Loctite on clean bolts and clean threads. 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.Maxx 200 SBC(Sold in Pairs) Maxx 200 SBC. (Sold in Pairs) $ 950.00 – $ 1,525.00. The Maxx 200 is the ultimate “as cast” head available that produces CNC type flow number, flowing over 280cfm. This head has produced over 550 hp on pump gas and mild cam .383. Spring Options.Maxx 200 SBC(Sold in Pairs) Maxx 200 SBC. (Sold in Pairs) $ 950.00 – $ 1,525.00. The Maxx 200 is the ultimate “as cast” head available that produces CNC type flow number, flowing over 280cfm. This head has produced over 550 hp on pump gas and mild cam .383. Spring Options.Intake Manifold, Vortec Head Design. Designed for 283-400-cubic-inch engines using Vortec cylinder heads P/N 12558060, P/N 19300956, P/N 19300955, P/N 19331470, or P/N 19331472. Has 4-bolts per side to attach it to these cylinder heads. Aluminum high-rise design maximizes horsepower and delivers a broad torque curve.Big Block Chevy Head Bolt Torque Specifications. Long Head Bolts 75 - 80 Ft/Lbs. Short Head Bolts 65 - 68 Ft/Lbs. I would also add make sure you torque the bolts in steps. Do a first round hand tight, second round at. 50% torque (OK, let's just say 35 Ft/Lbs) then final round at specs.Torque small block Chevy compatible head bolts to 70 ft-lb in increments of 20 ft-lb. Torque BR Series 11 mm studs to . 85 ft-lb and 8 mm studs to 26 ft-lb. Use a drop of 30W motor oil under head of bolt. Make sure head bolts do not bottom . out in block. Sealer should be used on head bolt threads. A re-torque after initial warm up is desired.Option 2: Our 235cc "Competition" heads come with 100% CNC machined intake runners, exhaust ports and combustion chambers. Equipped with Titanium retainers and high quality components, featuring a 60/40 valve spacing which requires shaft mounted rocker arms for optimum valve train geometry (can be used with .050 offset intake rockers for drag ...INSTALLATION INSTRUCTIONS. Use either Edelbrock #7201 or Fel-Pro #1256 (#1205 for aftermarket heads) intake gasket set when installing this intake manifold. Fully clean …Small Block Chevrolet Torque Specs. Views: The following specs apply to: Gen. I, Small Block Chevy. Notes. These specs are for stock-type bolts with light engine oil applied to …DESCRIPTION: Edelbrock E-Tec 170 cylinder heads are designed for street/high performance use on 302, 327, 350, and 400 c.i.d. Small block Chevrolet engines using …383 Stroker. -5cc flat top pistons. w/ 64CC heads (pro comp aluminum) estimated compression from Eagle (bottom end) is 10.7:1. I think (??) the recommended plugs for the aluminum heads are Champion RC12YC (Autolite 3924); however the current plugs are a hotter plug Champion RC14YC (Autolite 3926). These plugs are a gasketed, …GM 350 Intake Manifold Bolts Torque Specifications. by Anne Davis. The 350 is a member of Chevrolet's small block engine family. First built in 1967, this 5.7-liter engine is featured in such vehicles as the Chevrolet Camaro and Nova. Throughout its life, the 350 has had numerous models identified by letter combinations such as L-48 and LT-1.Comes fully assembled with heavy duty components. Designed to bolt right up to your small block Chevy engine. Features an all-aluminum construction with a natural finish. Head bolts are tested to over 180,000 PSI and has a 1/2" wrench size and a 1.375" thread length. Head gaskets offer superior heat dissipation and have a compression thickness ...The Edelbrock installation flyer that came in the box of my RPM Air-Gap intake manifold provides a bolt torque sequence and recommends using a ... 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. Edelbrock Head Bolt Kit #8555 includes two longer-than-stock bolts which must be used with these cylinder heads. If you use any other head bolts, you must use the two head bolts and washers supplied in the cylinder head, and torque to manufacturer's specification for aluminum heads. Head Gaskets: Edelbrock head gaskets #7313 are recommended for use with E-Street heads. Edelbrock Cylinder Head Gasket Set #7364 may ... Intake Bolt Torque: 16-18 ft./lbs. Rocker Studs: 3/8" Rocker Stud Torque: 45 ft./lbs. (7/16"-14) Combustion …Here is one source: Standard operating procedure with a small block Chevy and aluminum heads and production bolts is to use hardened steel flat washers under the heads of the bolts, coat the threads with waterproof goop and torque bolts to 65 ft/lbs. I usually go 35, then 50, then 65. The Techinspector has you covered.Comes fully assembled with heavy duty components. Designed to bolt right up to your small block Chevy engine. Features an all-aluminum construction with a natural finish. Head bolts are tested to over 180,000 PSI and has a 1/2" wrench size and a 1.375" thread length. Head gaskets offer superior heat dissipation and have a compression thickness ...Description: BluePrint Engines Performance SBC Aluminum Intake manifold kits are perfect to top any SBC ranging from 350 to 400 CID. Capable of supporting over 500 …50-state street legal aluminum heads for 1987-95 Chevy 5.7L engines (except LT1, LT4 and LT5 Corvettes) originally equipped with centerbolt valve covers and the 1987 and later intake manifold bolt pattern. The high-velocity intake runner is designed to work with either T.B.I. or Tuned Port Injection systems. The 60cc combustion …Torque specifications vary depending on the fastener brand, lubricants, and other factors. Head bolt torque sequence, however, generally remains constant for a given engine. To give you a quick reference of torque sequences, OnAllCylinders’ Lori Sams has created a series of infographics for different engine makes.Requires hardened pushrods.; All E-Street Cylinder Heads are sold in pairs; Dyno tests showed a gain of 16 hp and 11 ft-lbs of torque over our overseas competitor; Intake Valve Diameter: 2.02 in : Intake Runner Volume: 185 cc : Material: Aluminum : Push Rod Diameter (Suggested) 0.3125 in : Rocker Stud Diameter: 0.375 in : Valve Angle: 23 deg ...I eed to know which specs to go with eith the Cast Iron specs or the Aluminum block specs below. Any help on this would be greatly appreciated. Chevrolet Big-Block Iron Engines Component Torque Camshaft Sprocket Bolts 20 ft. lbs. Cylinder Head Bolts Long 70 ft. lbs. Short 70 ft. lbs. Cylinder Head Studs Long 65 ft. lbs. Short 65 …50-state street legal aluminum heads for 1987-95 Chevy 5.7L engines (except LT1, LT4 and LT5 Corvettes) originally equipped with centerbolt valve covers and the 1987 and later intake manifold bolt pattern. The high-velocity intake runner is designed to work with either T.B.I. or Tuned Port Injection systems. The 60cc combustion …The CNC ported 15 is one of the latest in a long line of heads designed by BRODIX for the dirt late model market. This new creation features a 15° valve angle, specially raised and shaped intake and exhaust ports, and a newly designed chamber and spark plug angle that works well with any type of fuel. These new 15° heads are available 100% ...On the dyno, the Victor Jr. put up the best numbers yet with the Brodix as-cast cylinder heads, punching out 684.1 lb-ft of torque at 687.1 hp. Victor Jr. to Weiand Track Warrior Intake. Brodix ... 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. Cast Iron is much more forgiving if you are unfortunate to have to use a boat anchor of an intake. Some Common Intake Manifold Installation Tips. On the plus side, the Vortec intake port flows 42 cfm better than the stock heads at 0.500-inch lift and 18 cfm better on the exhaust side. Vortec Iron, Scoggin-Dickey Modified PN SD8060A2, $779. ...HYPURR DBL NKL. 763 posts · Joined 2009. #11 · Apr 24, 2017. Personally using a torque wrench on intake bolts, is the fastest way to strip the head IMO. Just use a ratchet and tighten them down using the proper criss-cross pattern so it goes down evenly. Do it in two passes, snug, then final tightening. Torque: Head Bolts = 65 ft/lb Rocker Studs = 55 ft/lb Manifold = 30 ft/lb Block Use: Any SBC Iron or Aluminum Weight: 59-61 lbs fully assembled pair. Important installation notice. As with any new heads, you must do a mock setup with the heads before bolting them on. These specs are for stock-type bolts with light engine oil applied to the threads and the underside of the bolt head. Moly and other lubes offer reduced friction and increased bolt tension, which will affect the torque figure. If you use aftermarket performance bolts like ARP's, you should follow the recommended torque specifications.in the cylinder head, and torque to manufacturer's specification for aluminum heads. Head Gaskets: Edelbrock head gaskets #7313 are recommended for use with E-Street heads. Edelbrock Cylinder Head Gasket Set #7364 may ... Intake Bolt Torque: 16-18 ft./lbs. Rocker Studs: 3/8" Rocker Stud Torque: 45 ft./lbs. (7/16"-14) Combustion … ProMaxx Performance 185cc Aluminum Cylinder Heads Small Block Chevy. 185cc Aluminum Cylinder Heads. Small Block Chevy. 2.02''/1.60'' Valves. 185cc Intake Runner. 72cc Combustion Chamber. Straight Plug. Assembled. Sold as pairs. Head Hunter™ F Series/15° ST 5.0 Series/20° Track 1 Ford Compatible Series/20° Mopar Compatible Heads Menu Toggle. B1 Series/15°/18° Spec Heads Menu Toggle. ASCS / SUPR Series Cylinder Heads To Fit Chevy – Ford – Mopar; V6 Chevrolet Compatible Heads Menu Toggle. 90° V6 Series Cylinder Heads/23° BRODIX Aluminum Blocks …413 posts · Joined 2001. #1 · May 26, 2004. I'm now going to install my manifold and then headers onto my (pro topline) aluminum heads. I'm using ARP bolts for the manifold, and ARP studs for the headers. ARP says 39ft lbs, but I once stripped out a thread (P.I.T.A.) at 30ft lbs, so im definately wary of doing that again.Advertisement Today's iMac comes in four primary configurations, with a fifth designed specifically for the education market. Let's look first at what they all have in common, then... between the head and the fastener to prevent galling. All aluminum cylinder heads should be torqued to 65ft/lbs. This should be done in the proper General Motors sequence in 10-ft/lb increments beginning at 40ft/lbs. Moly lube should be applied between fasteners, washers and areas around head bolt to prevent galling and improper torque values. Original Small Block. While the first generation 350's 65 ft.-lb. head bolt torque is one of those numbers that all real gearheads have committed to memory, the bolt tightening sequence is a little more complex. Assign each of the three rows of bolts a letter from top (intake manifold side) to bottom (exhaust manifold side); "A" for the top, "B ...JEGS 83250 - 12-Point Intake Manifold Bolts for Chevy, Mopar and AMC [Zinc Dichromate Gold] $13.67. Mr Gasket 135G - Intake Manifold Gaskets Performance Material. $39.95. Mr Gasket 955G - Hex Head, Grade-8. $14.30. JEGS 83200 - Intake Manifold Bolts Small Block Chevy. $8.09. Fel-Pro 1284 - H/P Intake Gasket Small Block Chevy LT1/LT4 Engines.Firing Order: 1, 8, 4, 3, 6, 5, 7, 2. Illustrated here is the correct position for the spark plug wires on the distributor cap, as well as the correct firing sequence. This Tech Tip is From the Full Book “ SMALL-BLOCK CHEVROLET: STOCK AND HIGH-PERFORMANCE REBUILDS “. For a comprehensive guide on this entire subject you can visit this link:Small Block Chevy Head Bolt Torque Specifications. Step 1 25 Ft/Lbs. Step 2 45 Ft/Lbs. Step 3 65 Ft/Lbs. For Head Studs or aftermarket bolts CHECK YOUR INSTRUCTIONS, SBC studs are available in a ton of. different styles depending on heads and stud diameters. Some People do only 1 or 2 steps to reach the final torque.Object moved to here.795 posts · Joined 2008. #1 · Jan 19, 2011. ARP head studs 134-4001 call for 80lbft using ARP Ultra Torque lube. That torque reading is based on 75% of the yield strength of the fastener (190,000PSI). So, the ARP studs have a greater tensile strength than stock head bolts allowing more torque to be applied to them.Product Summary. Chevy Small Block V8, Assembled Cylinder Head Style. Has a standard port location for use with most intake and exhaust manifolds. Designed for optimal airflow and performance on SBC engines with a 4.0" bore. Will flow 232 CFM @ .500" lift on the intake and 173 CFM @ .500" lift on the exhaust. Features like fast-burn combustion ...600--650 vacuum secondary max rpm 5500 ,, VE 98%. alloy 195 cc heads. do a dynamic compression calc [includes cam timing ] but your static should be around 10:1 CR. single pattern 220deg in/exh at .050 camshaft prefer a Hyd roller. 1 3/4 primary headers 4 into 1 ,,, 3inch collector at least 18 inch long. NB Its all about what you will lose in ...What Is The 350 Chevy Intake Manifold Torque Specs? 350 Chevy requires intake manifold torque specs of 30 ft-lbs (for a cast iron head) and 25 ft-lbs (aluminum head). Before tightening, drivers must first confirm which manifold type their car model uses.AFR's 210cc "Race Ready" and "Competition" heads feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout. Recommended for race applications and aggressive street/ strip builds up to 400 cubic inches, operating up to 6500- 6800 RPM. Included Components. 100% CNC Ported …Our largest and most powerful 60/40 head for the small block Chevy features 100% CNC machined intake runners, exhaust ports and combustion chambers. Capable of flowing 350 CFM at 0.800" of lift these heads come equipped with Titanium retainers and high quality components throughout, the 60/40 valve spacing which requires shaft mounted rocker ...Jun 2, 2012 · This is on a small block Chevrolet. I know Socket head cap screws will only fit in some places, because the Diameter of the cap screw head is too large and a 3/8 nut is larger ! 69 Camaro -originally a LM1 car. 327, Edelbrock E-streets, hooker, DUI performance distributors, ultradyne cam, stewart, TRW etc. Vintage Air, AGR steering, Corbeau ... 383 High Performance Engine Torque Specifications: NOTE: These specifications are correct for the SP383 or HT383 Base engine. If using components different from that configuration, the specifications may be different. Camshaft retainer bolt/screw ..... 106 in.-lbs. / 12 N·m These specs are for stock-type bolts with light engine oil applied to the threads and the underside of the bolt head. Moly and other lubes offer reduced friction and increased bolt tension, which will affect the torque figure. If you use aftermarket performance bolts like ARP's, you should follow the recommended torque specifications.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. Cast Iron is much more forgiving if you are unfortunate to have to use a boat anchor of an intake. Some Common Intake Manifold Installation Tips.On the dyno, the Victor Jr. put up the best numbers yet with the Brodix as-cast cylinder heads, punching out 684.1 lb-ft of torque at 687.1 hp. Victor Jr. to Weiand Track Warrior Intake. Brodix ...Edelbrock part #2116 Performer intake manifold is based on the popular and powerful Edelbrock #2101, this dual-plane intake is designed for the street rod, industrial and engine swap market utilizing 262-400 c.i.d. Chevy V8's with 1996 and later Vortec (L31) cast iron or the Edelbrock E-Tec aluminum heads. If using Fel-Pro Print-O-Seal, or any silicone beaded gasket, you must apply a small strip of silicone to both the deck flange of the cylinder head, Part #5023, 5025 Rev. 6/20/12 - QT/mc. Page 1 of 2. ©2012 Edelbrock LLC Brochure #63-5023. as shown in Figure 1 on the next page, and the at same location on the surface of the block to prevent ... Torque small block Chevy compatible head bolts to 70 ft-lb in increments of 20 ft-lb. Torque BR Series 11 mm studs to . 85 ft-lb and 8 mm studs to 26 ft-lb. Use a drop of 30W motor oil under head of bolt. Make sure head bolts do not bottom . out in block. Sealer should be used on head bolt threads. A re-torque after initial warm up is desired.Big Block Chevy Manifold. Your Price: $ 645.39 SKU 41114000. Dart Big Block Chevy Manifolds. -. Add to cart. Compare.As of 2015, maximum torque values for Cummins ISX truck engines range from 1450 pound-feet at 1200 revolutions per minute for the ISX 400, to 2050 pound-feet at 1200 RPM for the IS...It is not necessary to re-torque the head bolts after initial break-in. For head stud installation, follow the head stud manufacturer’s instructions. NOTE: On engines with torque-to-yield head bolts (1992 ½ and later), the head bolts must be replaced. 6) Installing and Adjusting the Valvetrain Place the proper length, hardened pushrods into theI am going to clean up the threads and see what happens but wanted to know how much torque can the threads handle. I do not want to remove intake and all the other stuff. Call me a lazy. Retorqued at 11 ft lbs the motor idles at 1400rpm, obviously an intake leak. If retorqued to 30 ft lbs will stop intake leak maybe.Visually similar to GM casting #3782461, which first appeared on the 1961 Corvette “fuelie” No accessory bolt holes, just like the original heads Aluminum heads shave 40 lbs. off the nose of your car vs. original 461 iron heads Improved port/chamber shape for better performance and efficiency Standard port location for use with most intake and exhaust …My aluminum Edelbrock E-Streets called out 40-55-65 ft. lbs. in three steps....aluminum Edelbrock intake manifolds 25 ft. lbs. Vortec intakes only 11 ft. lbs. Headers about 35-45 ft.lbs. Really as tight as you can... they will loosen. Use anti-seize on bolts going in to aluminum. (intake and header)These specs are for stock-type bolts with light engine oil applied to the threads and the underside of the bolt head. Moly and other lubes offer reduced friction and increased bolt tension, which will affect the torque figure. If you use aftermarket performance bolts like ARP's, you should follow the recommended torque specifications.

When it comes to engines, torque is a crucial specification that determines the power and performance of the machine. In the world of small engines, Kohler is a well-known and resp.... Margaritaville henderson

sbc intake torque specs aluminum heads

The AFR SBC heads in 220cc Eliminator Race configuration have multiple advantages. The first is the flow rate, which is ideal for 350-427 cubic inch small blocks, capable of supporting up to 700 HP and operating between 4,000 and 8,000 RPMs, while keeping standard valvetrain components. A second benefit is weight savings over cast iron heads ...E. ericnova72. 22557 posts · Joined 2007. #3 · Aug 1, 2015. Spec for the SBC is 65-70 ft.lbs with factory bolts.....75 ft.lbs isn't going to hurt anything....but if you want to re-torque, it is a good idea, you will find that the gasket has relaxed some under the compressive force of the head, and you will find some bolts seem looser, usually ...#1. This weekend im starting my AFR install, Now being that there aluminum im guessing back off on the torque specs a little? Id hate to strip a thread half way …Small Block Ford Intake Bolt Torque Specifications. 18 Ft/Lbs - Aluminum Heads. 22-25 Ft/Lbs - Iron Heads. Do the torque in 2 steps, first just hand tight, second with the torque wrench. IF you do have a spec from the manufacturer follow that. Make sure threads in the head are clean and in good. shape.Our 1402 and 1472 cylinder heads are machined for 7/16" head bolt diameters; all others are machined for 1/2" head bolts. When using heads with 1/2" holes on blocks with 7/16" threads, we recommend using ARP's 254-3708 or 254-4401 kit with their 200-8598 bushings. If you are using ARP hardware, follow their recommended torque specifications.Don't sacrifice quality for a low price--get both with our Summit Racing™ 64cc aluminum cylinder heads for small Chevy. The lightweight heads are cast from A-356 aluminum alloy and have 200cc intake ports, 64cc combustion chambers, phosphorous bronze valve guides, and ductile iron valve seats for use with unleaded gas.The Dart Big Block Chevy Pro 1 Aluminum Heads were inspired by Dart's championship-winning Pro Stock designs and available with 310, 325, 345, or 355cc oval or rectangular port intake runners, big block Pro 1 aluminum cylinder heads deliver out-of-the-box airflow that smokes the competition!Object moved to here.Small Block Ford Intake Bolt Torque Specifications. 18 Ft/Lbs - Aluminum Heads. 22-25 Ft/Lbs - Iron Heads. Do the torque in 2 steps, first just hand tight, second with the torque wrench. IF you do have a spec from the manufacturer follow that. Make sure threads in the head are clean and in good. shape. 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. Cast Iron is much more forgiving if you are unfortunate to have to use a boat anchor of an intake. Hello all, I just bought a set of aluminum heads to install on my 406 sbc. My question was are the torque specs. different on aluminum heads as to the stock cast iron heads?The performance range is from idle to 5500 rpm for great throttle response as well as top-end horsepower. These cylinder heads are assembled with the following components: …Big Block Chevy Head Bolt Torque Specifications. Long Head Bolts 75 - 80 Ft/Lbs. Short Head Bolts 65 - 68 Ft/Lbs. I would also add make sure you torque the bolts in steps. Do a first round hand tight, second round at. 50% torque (OK, let's just say 35 Ft/Lbs) then final round at specs.Here is one source: Standard operating procedure with a small block Chevy and aluminum heads and production bolts is to use hardened steel flat washers under the heads of the bolts, coat the threads with waterproof goop and torque bolts to 65 ft/lbs. I usually go 35, then 50, then 65. The Techinspector has you covered.Studs, heads: Must use Dart head studs Studs holes, Head: Blind holes Stud length in block: 1.770” - 1.550” thru + .270 bottom bullet Timing chain/gears Must use raised cam components Timing Cover: Can use stock cover / Mag w/fuel pump provision avail. Torque Specs: 1-5 7/16” studs - 75 ft lbsthe intake bolts. Install all 12 bolts and washers and torque to 10 lb-ft. Follow torque sequence shown below. Then, using the same torque sequence, tighten all 12 bolts to 18 lb-ft for aluminum heads. Repeat multiple times in sequence until all bolts reach proper torque. Note: You will find that the end bolts reach their final torqueAll aluminum heads should be torqued to the. bolt manufacturer’s specifications. This should be done in the proper General Motors sequence in 10 ft./lbs. increments beginning at 40 ft./lbs. Moly lube should be applied between fasteners, washers and area around head bolt to prevent galling and improper torque values..

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