Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:

Are there proper torke specs for head bolts???????

Thread Tools
 
Search this Thread
 
Old 06-06-2003, 05:12 PM
  #1  
TECH Addict
Thread Starter
iTrader: (3)
 
Assassin's Avatar
 
Join Date: Apr 2003
Location: Nevada
Posts: 2,437
Likes: 0
Received 1 Like on 1 Post
Default 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!
Old 06-06-2003, 06:39 PM
  #2  
Restricted User
iTrader: (43)
 
2001 Pewter WS6's Avatar
 
Join Date: Nov 2001
Location: Pittsburgh, PA
Posts: 2,669
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Are there proper torke specs for head bolts???????

You need to do the degree method as listed in JMX's site.
Old 06-07-2003, 12:58 AM
  #3  
TECH Apprentice
 
malibu350's Avatar
 
Join Date: Oct 2002
Location: san Antonio
Posts: 310
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Are there proper torke specs for head bolts???????

Are u using stock bolts or aftermarket???
Old 06-07-2003, 03:04 AM
  #4  
TECH Addict
Thread Starter
iTrader: (3)
 
Assassin's Avatar
 
Join Date: Apr 2003
Location: Nevada
Posts: 2,437
Likes: 0
Received 1 Like on 1 Post
Default Re: Are there proper torke specs for head bolts???????

new gm bolts
Old 06-07-2003, 03:18 AM
  #5  
TECH Apprentice
 
malibu350's Avatar
 
Join Date: Oct 2002
Location: san Antonio
Posts: 310
Likes: 0
Received 0 Likes on 0 Posts
Default 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.
Old 06-07-2003, 09:04 AM
  #6  
TECH Fanatic
 
Tin Indian's Avatar
 
Join Date: Nov 2001
Location: SW Florida
Posts: 1,975
Likes: 0
Received 2 Likes on 2 Posts

Default 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.
Old 06-11-2003, 04:56 PM
  #7  
TECH Veteran
 
robertbartsch's Avatar
 
Join Date: Aug 2002
Location: Hartsdale, NY
Posts: 4,055
Likes: 0
Received 0 Likes on 0 Posts

Default 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...




All times are GMT -5. The time now is 03:55 PM.