Head Bolts

[frdstang93]

Hi everyone,

Were all stock head bolts torque to yield?

Thanks,
Josh

 

[DailyDrifter]

Yeap. DON'T re-use them!

 

[wildcard]

Yeap. DON'T re-use them!

What he said...I tried that my first time. Wasn't pretty :frown:

 

[frdstang93]

So I followed the torque specs on gnttype.org with new gm bolts and it says not to exceed 60ft lbs. What do you guys recommend?

 

[JoelGN]

The 60 lbs optimizes the stretch. Any more would be too much. Most are now using the ARP studs with allen heads for removal while in the car. Those are optimized at 85 with 30wt motor oil and 80 with ARP moly lube.

 

[frdstang93]

The 60 lbs optimizes the stretch. Any more would be too much. Most are now using the ARP studs with allen heads for removal while in the car. Those are optimized at 85 with 30wt motor oil and 80 with ARP moly lube.

Thanks for the reply, is there an article or something that explains all of this?

 

[JoelGN]

Try this: Perfect Engine Sealing Starts With Proper Head Bolt Use: Engine Builder

 

[frdstang93]

Excellent article, thanks for the help.

Josh