Hey all,

i have a question about retorquing the head bolts. I did the ones that i could get to without taking anything off,(2,3, and 6 cylinders, and all the ones below them under the exaust manifold) i got those ones to 125 ft lbs. I figure those ones could help a little till i get the rest torqued down this spring. Can i still drive it like this or should i finish them off.

thanks for any help.

 

You need to do them all. The reason you tq head bolts (and studs) down to equal amounts and one of the reasons its so important is because you need to hold teh head down equally, with out you will create "weak" spots in the head gasket.

 

ok thats what i just did the more i got to thinking about it i decided to do them all.

 

cylinder head torque specs

66, 89 ft/lbs +90 deg

doing them a 125 will not hurt the engine, but you will have to replace them, they are now T/Y

 

what does t/y mean

 

Torque to yield

It is the stress point for the bolt, once you go to that it is highly recommended that you replace if you ever remove the bolts or if the bolts come loose on their own

 

135 ft/lbs is common practice for holding down the head on budget trucks with high cyl pressure and yes at these levels do not reuse bolts.

 

Well i really didn't need to even retorque them but i decided it was insurance. I'm only pushing 28-29 psi of boost right now.

 

The bolts are pretty cheap, so no to worry to much.

I do the same on mine, just wanted to stress the point about reusing bolts, I have seen some pretty nasty stuff done to guys who reused.

 

ok thanks man