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Alright everybody, one of my buddies recently asked me to fix his sled, a '95 ZR 580. He claims he lost compression in one of his cylinders. But i haven't really taken a look at it yet. Anyways i was just wondering where i could find engine specs for his engine, but right now i need the torque specs for his head. But i was wondering if it really mattered as long as i keep goin to the opposite side in a criss cross patern?

Also guys if any body else knows of any typical problems with these engine jst let me know.
THANKS
 

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Cylinder head bolt torque is 13-20 ft.lbs, in 3 steps

Cylinder base nut torque is 29-43 ft.lbs in 3 steps.

Exhaust manifold torque is 13-16 ft.lbs

Thermostat housing cap screws torque is 5-7 ft.lbs

Put the cylinders on, finger tight. Put the exhaust on, tighten to spec, then tighten the cylinder nuts.

Put the head bolts on, finger tight. Install the thermostat housing, then torque the head bolts.

ZR580 engines are prone to breaking piston skirts at about 2500-3000 miles, if that's the case, you will need to take the whole engine apart to make sure no pieces got into the bearings.
 
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