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Old 01-23-2004, 04:53 AM
bbdon bbdon is offline
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Default Re: Torque Specs on ZL1

I don't know much about ZL1s, but I have always liked to retorque head bolts and exhaust manifold bolts after running the engine for a while.
I have read somewhere that the bolts are all longer on the aluminum engines, and that why you can apply the same torque as on a iron engine without stripping the threads.
But I'm not the expert. Fortunately, I happen to have recieved something nice in the mail today. So here is what the Motion Performance Chevy Performance guide had to say on this subject back in 1971.

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