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Old 12-02-2011, 04:46 PM   #22
Drives: 611 HP. 600 TQ
Join Date: Dec 2011
Location: OC
Posts: 8
GM is working on a 5.5 OHC V8. I imagine that will be in the new Z28. and a larger S/C version of that (detuned from the Corvette) will be in the newer ZL1s.

OHC is a different animal that pushrod. and GM seems to be giving development that time it needs to have the right power, while being the most reliable, and having the least complexity possible.
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