351 head bolt torq specs - Ford Powerstroke Diesel Forum
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post #1 of 4 Old 03-27-2009, 12:39 PM Thread Starter
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351 head bolt torq specs

351 head bolt torq specs need to know what final torq specs are on stock head bolts i have the order and first 2 then has blank as to third and final time
say 35 lb the 50 lb


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post #2 of 4 Old 03-27-2009, 12:55 PM
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1993-1997 351 are - (with bolts died and holes tapped and clean, no oil) step 1- 85 ft.lbs, step 2 - 95 ft lbs and step three 105-112 ft lbs. If you oil the blots, take 10% off the torque values.
Jim
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post #3 of 4 Old 03-27-2009, 01:12 PM
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I wouldn't oil the bolts, I would use moly lube, then torque to normal values. Run engine with normal break in procedures. Then re-torque to final just to be safe.

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post #4 of 4 Old 03-27-2009, 01:38 PM Thread Starter
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Quote:
Originally Posted by Jrsummers View Post
1993-1997 351 are - (with bolts died and holes tapped and clean, no oil) step 1- 85 ft.lbs, step 2 - 95 ft lbs and step three 105-112 ft lbs. If you oil the blots, take 10% off the torque values.
Jim
i seen on Mustange site they snapped the bolts off at a 105 lbs they where apr to be 25 % stronger

i found another says 85 lbs max engine is a 1978


Matt

2006 F250 6.0L
mac intake
ZooDad Mod
Accufab polished Elbow
sct innovative tunes
Cat delete with cool duals
14.069@95.62MPH

someday
water/meth
headstuds

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