Are there proper torke specs for head bolts???????
Are there proper torke specs for head bolts??????? I know on jim x's site it says to do the 22ft lbs then the rotation method, but like cast iron block 350's are there specific torke specs for the head bolts? anybody got a shop manual handy.... today?, thanks, and cant forget to thank jim x for his outstanding website! 
TECH Apprentice
Joined: Oct 2002
Posts: 310
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From: san Antonio
Re: Are there proper torke specs for head bolts??????? I can't remember the all the exact numbers but I know you torque all the bolts(15mm and 10mm) to 22ft lbs. Then you go through the torque sequence just for the 15mm bolts in two steps to take them up to 85 ft lbs(I think) then you re check the 10mm bolts at 22 ft lbs. And then you are supposed to go through and give each bolt a quarter. Like I said don't quote me exactly, as I don't have my service manual in front of me. But this is the basic sequence as I remember it.
TECH Fanatic
Joined: Nov 2001
Posts: 1,975
Likes: 2
From: SW Florida
Re: Are there proper torke specs for head bolts??????? The stock M-11 GM bolts all torque to yield. The smaller M-8 bolts that go along the top of the heads are not. Follow the procedure as outlined in JMx's how-to page as 2001 Pewter WS6 said.
TECH Veteran
Joined: Aug 2002
Posts: 4,055
Likes: 1
From: Hartsdale, NY
Re: Are there proper torke specs for head bolts??????? Someone here suggested the big head bolts are 75 pounds which is what I used recently... a tad less for the 4 shorter bolts...
My heads are still on the block so that torque should work....
When I tried the JMX method, the felt tip marks did not stick to the head of the bolts... I sprayed them with a light coat of silicone like John Force does, however...
My heads are still on the block so that torque should work....
When I tried the JMX method, the felt tip marks did not stick to the head of the bolts... I sprayed them with a light coat of silicone like John Force does, however...
