torque specs

[bewildered]

hey guys and gals i need the torque specs for a 94 3.4L Z34 lumina i need the ones for the heads and i need the sequence to please i lost my book and i need to get my car done by friday please help

[cadgear]

I assume the Z34 had the DOHC engine, which, by the haynes book, 44ft-lbs and an extra 1/4 turn at the second step. Order goes a bit like this...

6 2 3 7
. . . .
. . . .
5 1 4 8

Hope this helps you out.

[tblake]

wow, I had no idea that the 3.4 was a V8. Sorry to doubt you cadgear, but, they are v6's there buddy, and sorry, I dont know the firing order.

[jeffcoslacker]

Originally Posted by tblake

wow, I had no idea that the 3.4 was a V8. Sorry to doubt you cadgear, but, they are v6's there buddy, and sorry, I dont know the firing order.

Bolt tightening sequence, blake, bolt tightening sequence. They know its a six. You gotta torque 'em like lugnuts, in a pattern and increasing increments, or else the head will warp. Did they use TTY (torque to yield) bolts in the 3.4? If so, you need new bolts. If you don't replace TTY's, they break or don't torque right. If it doesn't-ignore this.

[cadgear]

I think you do need new head bolts for this thing. Not positive but it couldn't hurt could it?

[richtazz]

they do have torque-to-yield head bolts. The Fel-Pro part # for replacements is ES72177, and you'll need 2 sets. unlike most head bolt sets, they are per bank, not per engine.