Finally, tighten the vibration damper bolt to between 70 and 90 foot-pounds of torque. for 1/2" bolts (351-W) in three or four steps following the factory tightening sequence (see Figure 1), then tighten the Torqued in stock sequence and increments. I have a coolant leak that I tracked to the lower head bolt D side # 2 in the torque sequence. Small Block Chevrolet Head Bolt Torque Sequence. 05-18-2005, 05:36 PM. I have a 351W with the performer RPM heads and Pro-Flo Intake. Blew it again shortly thereafter. did u flush the heads? Jan 15, 2020 - If you do anything automotive and are a performance enthusiast you will need to use this collection of these reference pages. I am replacing my head gaskets . for ½" bolts (351-W) in three or four steps following the factory tightening sequence (see Figure 1), then tighten the long (upper) head bolts to 80 ft./lbs. If you are useing old studs and nuts i would reconment that you drop the torque 10 ft. Don, go with the ARP torque, 351w no sealer. And with the right head, cam, and induction combination, torque hands off to horsepower at high RPM. Torqued in stock sequence and increments. The head uses 3/8 rocker studs 915-99156 and requires the use of adjustable rocker arms like our part number: 915-11772. Tighten the spark plugs to between 15 and 20 foot-pounds of torque for all years except those 351s produced during 1975 and 1976. Connecting rod bolts 40-45 ft.-lbs Cylinder head bolts (follow factory torque sequence) washer, and area under head bolt to prevent galling and improper torque readings. 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. Intake manifold bolts 23-25 ft-lbs. 351W Fastener Type Torque Spec. Connecting rod bolts 40-45 ft.-lbs Cylinder head bolts (follow factory torque sequence) … 154-4205: SB Ford SVO 351 Head Stud Kit. (125 ft.-lbs. Rocker arms 17-23 ft-lbs. Use of other gaskets may result in water leaks. For this reason, it is imperative that the torque specifications for one engine not be used for a different engine designation. The 351 Windsor was in a league of its own because of its heightened deck block, larger connecting rods and much “beefier” main bearing … Main cap bots 95-105 ft.-lbs. SB Ford 289-302, w/351W head, 12pt Head Stud Kit. For your convenience, we stock complete and partial ARP head-bolt kits, studs and washers. here is some more info for you. I know the torque values are different using the ARP assembly lube ( got those from ARP) but what is the sequence? About Us - For your convenience, we stock complete and partial ARP head-bolt kits, studs and washers. 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. cpjonesman. is the top row on the driver or passenger side of the block? 254-4110: Ford SVO Fontana, w/'94up Yates heads Head Stud Kit. of torque at 3,400 rpm. (7/16") or 110 ft./lbs. ARP Ultra-Torque far surpasses all requirements offered by previous ARP lubricants in terms of fastener preload repeatability and performance lubricating properties. This is the only one leaking and you can clearly see coolant coming out as the pressure build when coming up to temp. Tighten the exhaust manifold bolts to between 18 and 24 foot-pounds of torque. 254-4107: SB Ford 351 SVO Yates Design Head Stud Kit. 254-4101: Ford 351 Block, w/6049-N351 heads The intake manifold bolts should be tightened in a crisscross pattern to ensure even gasket sealing. Note: You will find that the end bolts reach their final torque value sooner than the center bolts. 351W (1/2" factory head bolts) - 100ft./lbs. ft. If using on the 351 with the larger bolts it is 100 pounds net torque in same sequence and increments as stock. In drag racing, torque helps in coming off the line under hard acceleration. for 7/16" bolts (289/302) or 100 ft./lbs. Tighten the flywheel bolts to between 75 and 85 foot-pounds of torque. 289ci / 302W (7/16" factory head bolts) - 70ft./lbs. In sequence, torque all bolts. but i did mine in 3 stages, always do in any of my torquing. Again, the 289 and 302 are two-stepped (I do three steps) to between 65 and 72 lb-ft. the 351c or 351 Cleveland shared its transmission pattern with small block Windsor 260 though 351w, the 351c shared its bore and stroke with the 351m of 4.00 x 3.5. including cylinder head bolts, main bolts, cylinder head studs, flywheel bolts, oil pan bolts, rod bolts, freeze plugs and other engine fasteners. i am still not sure which side is which. Oil pump bolts 23-28 ft-lbs. I need to re-torque the heads but don't have the specs for sequence or ft pounds, and since the heads are aluminum, do I need to use stretch head bolts if I replace them? Note that the corner four bolts (numbers 5, 6, 7, and 8) are not supported byacylinder head and tightening them beyond 15 lb. Install all 12 bolts and torque to 10 lb.ft. In sequence, torque all bolts. Connecting Rod Bolts: 40-45 ft.-lbs. The 351W motors featured 1/2" head bolts, unlike the smaller 7/16" bolts found on factory 79-95 302 5.0L motors. Very streetable 190cc intake runners. ? Advertising - head bolt to prevent galling and improper torque readings. Small Block V8 (221, 260, 289, 5.0/302, 5.8/351W), The following errors occurred with your submission, 1987 - 1996 F150 & Larger F-Series Trucks, 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks, FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428), Lightning, Harley-Davidson F-150, Roush F-150 & Saleen F-150, Conventional (Bumper Pull) Towing; Travel Trailers & Pop-ups, Toy Hauler Towing; Fifth Wheel & Bumper Pull, Flatbed, Car, Boat, Utility, Horse & Misc. Stevens is a lawyer and licensed real-estate broker. Note that the rocker arm specification also varies depending on the year of the engine. Cam thrust plate bolts 8-10 ft-lbs. or 100 ft./lbs. They contain things like firing order, torque specs, drill and tap information. 110ft./lbs. Tighten the 5/16-inch bolts to between 21 and 25 foot-pounds of torque. 351 windsor head bolt torque sequence. for 7/16" bolts (289/302) or 100 ft./lbs. for Boss 351C) Cylinder Head Bolts (Follow factory torque sequence) 105 ft.-lbs. That was way overkill as I used ARP bolts which called for 80# with the lube they provide. did u flush the heads? Tighten the intake manifold bolts to between 23 and 25 foot-pounds of torque for all model years except 1975 and 1976. Your head stud kit should have come with instructions with torque values and thread lube, the ones I've bought in the past always had them. I have a 1970 F 100 pick up. There are three basic types of CHI heads: 2V, 3V, and 4V. Mustang 1/2" Head Bolts. The sequence/pattern for tighening the head bolts and torque specs I just put in a 351w w/400 heads, the motor has a 1000mls on it now, and i need to know what i need to retighten and what is the sequence/pattern for tighening the head bolts and torque specs.? Over 6,000 Automotive Torque Specs. Ford 5.0L-302ci-V8 Engine Torque Specs. 1983 Ford 351 w engine torque specs and sequences? … Torque: 50 Nm (37 ft-lbs) In sequence, turn each bolt an additional 90 degrees. To avoid damaging the gasket, it is important to tighten all of the cylinder head bolts in small increments at a time until the final torque setting is reached. (125 ft.-lbs. the 351c or 351 Cleveland shared its transmission pattern with small block Windsor 260 though 351w, the 351c shared its bore and stroke with the 351m of 4.00 x 3.5 including cylinder head bolts, main bolts, cylinder head studs, flywheel bolts, oil pan bolts, rod bolts, freeze plugs and other engine fasteners. (1/2"). The 351 C featured a bore of 4 inches and a stroke of 3.5 inches. He holds an Associate of Science in administration of justice from Riverside Community College, a Bachelor of Arts in criminal justice from California State University, San Bernardino, and a Juris Doctor from Whittier Law School. exhaust valves. What n2omike said. Jump to Latest Follow ... 90 Notch 69 351W bored .030 over 68 Falcon Full Cage and FE 487ci. Harmonic damper bolt 70-90 ft-lbs. I'm using 10w-30 motor oil instead of their lube and these are the 6 point/170,000 psi hp head bolts. hit the bolt once in sequence, chill for a bit maybe have a cold brew. for the long bolts. This gasket will fit most 351W heads. 254-4110: Ford SVO Fontana, w/'94up Yates heads Head Stud Kit. (7/16") or 110 ft./lbs. Fastener Type: Torque Specs: Main Cap Bolts: 60-70 ft.-lbs. 351W = 9.48 or 9.5 deck = 1/2" diameter head fasteners = 110# final torque value for ARP studs with ARP lube. Install the main bearing caps before installing the connecting rod caps. Previously installed Torque-to-Yield head bolts should never be reused. I did find the intake pattern. Search Car Torque Specifications by Engine or Model 2.05in. Over 6,000 Automotive Torque Specs. 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. Bolt Torque Spec Chart for Ford Engines These specs are for stock-type bolts with light engine oil applied to the threads and the underside of the bolt head. EZ Read simple diagram of the Small Block Chevy Cylinder Head Torque Sequence. enjoy. Tighten the rocker arm cover bolts to between 3 and 5 foot-pounds of torque. The “Torque Sequence” column shows which diagram to use as the specific bolt torquing sequence for your engine . The 1970 Cleveland produced 300 horsepower at 5,400 revolutions per minute (rpm) and 380 foot-lbs. of torque … (45-50 ft.-lbs. It has a late 60's or early 70's 351 Windsor; I'm not sure of the exact year, but so far, all parts I've bought for a 1969 Couger 351 have fit. Copyright 2021 Leaf Group Ltd. / Leaf Group Media, "Motor's Auto Repair Manual, 39th Edition"; Motors; 1976. For iron heads, the final torque … The Boss 351 (1971) and 351 High Output (1972) had adjustable, stud-mounted rocker arms. The 2V head, as its designation indicates, has the 351C- 2V (2-barrel) port configuration. Bottom row (left to right): 10 6 2 4 8. 254-4109: Ford 351 SVO Yates '94 Design Head Stud Kit. '74 351w using the ARP stud kit. The upper seven bolts are numbered from front to rear---under the valve covers---as 12, 8, 4, 5, 1, 9 and 13, while the lower bolts are numbered 11, 7, 3, 2, 6 and 10. Privacy Statement - I will be replacing head gaskets, intake and exhaust gaskets. They contain things like firing order, torque specs, drill and tap information. Tighten the 3/8-inch bolts to between 27 and 33 foot-pounds of torque. Install all 12 bolts and torque to 10 ft./lbs. the same torque sequence, tighten all 12 bolts to 18 lb-ft for aluminum heads. for ½" bolts (351-W) in three or four steps following the factory tightening sequence (see Figure 3), then tighten the long (upper) head bolts to 80 ft./lbs. The "top row" I was referring too runs left to right across the head, between the rocker studs/bosses and the springs. All diagrams can be found in numerical sequence at the back of this publication . Any help would be appreciated, Thanks! Bolt tightening sequence goes like this: Top row (left to right): 9 5 1 3 7. Don, go with the ARP torque, 351w no sealer. 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. I am just too cheap to buy a book....when I know it is available online. The 4.3L GM motor has 13 head bolts. 1979-95 Mustangs running a 351W motor will require the use of 1/2" head bolts when securing cylinder heads to the block. a quick vid on how to install ford heads along with torque specs and pattern, head gasket installation procedures and all the goods! Fastener Type - Torque Spec Main cap bolts 95-105 ft-lbs Connecting rod bolts 40-45 ft-lbs. Moly and other lubes offer reduced friction and increased bolt tension, which will affect the torque figure. 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