ZZ4 head bolt pattern and torque specs
Thread Starter
Racer
Joined: Dec 1999
Posts: 287
Likes: 0
From: Santa Rosa Ca
ZZ4 head bolt pattern and torque specs
Any ideas on where to get this info for the ZZ4? I imagine the torque specs would be different for aluminum heads than my stock L82. I looked online but no luck.
Thread Starter
Racer
Joined: Dec 1999
Posts: 287
Likes: 0
From: Santa Rosa Ca
Re: ZZ4 head bolt pattern and torque specs (Paul 73 Coupe)
It is a sad day when a post on Andy Rooney gets 29+ posts and a guy asking a tech question gets bumped to the bottom. Maybe I should have asked a question in that thread.
Race Director
Joined: Jan 2000
Posts: 12,399
Likes: 247
From: San Jose CA
Re: ZZ4 head bolt pattern and torque specs (Paul 73 Coupe)
Check in the C4 forum. They all run alum heads. I don't know the torque specs off the top of my head, but I'll take a look around.
-Steve
-Steve
Race Director
Joined: Jan 2000
Posts: 12,399
Likes: 247
From: San Jose CA
Re: ZZ4 head bolt pattern and torque specs (Pacin'California)
http://forums.corvetteforum.com/zerothread?id=454753
65Z01 offers a suggestion for the Trick Flow heads... should prolly apply in this case.
I also think it depends on what kind of bolts you're using...
-Steve
65Z01 offers a suggestion for the Trick Flow heads... should prolly apply in this case.
I also think it depends on what kind of bolts you're using...
-Steve
Drifting
Joined: Oct 2000
Posts: 1,825
Likes: 56
From: Shawano WI
Re: ZZ4 head bolt pattern and torque specs (Paul 73 Coupe)
The torque sequence is the same as any small block. Start at the center between the two exhaust valves and work out from here. 65# of torque will work fine. Be sure to use lube on the underside of the bolt head and to use sealer on the threads.
Thread Starter
Racer
Joined: Dec 1999
Posts: 287
Likes: 0
From: Santa Rosa Ca
Re: ZZ4 head bolt pattern and torque specs (Pete79L82)
The torque sequence is the same as any small block. Start at the center between the two exhaust valves and work out from here. 65# of torque will work fine. Be sure to use lube on the underside of the bolt head and to use sealer on the threads.
