I really need to know what the Chamber size is (CC's) for a 1995 Camaro Head ASAP. I'm getting pistons for the build tomorrow and I forgot to get the #'s off the heads before I sent them to LE. Anyways I read that they "should" be 54-55cc but at the same time I have seen online and my engine builder showed me specs in a book saying that they are 58cc chambers and only LT4 heads came with 55cc chambers!
I'm trying to achieve 11:1 CR.

 

If you sent your heads to LE you should be able to give him a call and he should be able to tell you pretty damn close to what the finished CC of the chamber is, or will be since he does so many LT1 heads. When you got him on the phone just ask him about pistons as well.

FWIW I didn't have mine CC'd when they were stock but after a little chamber work, de-shrouding around the valves from the valve job and milling .035 off the head deck I'm at 54cc finished chamber size. If you’re ordering pistons you should be safe with a flat top piston with a 5cc valve relief, but I would talk to LE to get the CR where you want it.

 

From what I have read, people that have actually measured many sets of stock heads say they are ~54cc (not from a spec in a book).