Re: 2002 ZL 1, HOW MUCH HP!
NEW - I believe all the 427s from GMMG will have C5R blocks. As far as the stages go the numbers may be misleading. For example, I chose to take delivery of mine as a stage I but am in the process of having a C5R 427 built with the new 090 casting C5R heads. I am also going with some other after market parts such as a new clutch and rear end.
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99 HOSS HT
02 SS Blk 1LE A4
02 **** ZL1 Phase II+
02 SS 23mi. 500 ci
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