Thread: ZZ383/425 Hp GM Performance
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08-25-2005 04:21 PM #1
ZZ383/425 Hp GM Performance
Just found this forum,looks good.I just picked up a crate motor from GM and wondering if any-one has any expierence with them?Its a ZZ383/425 HP c/with aluminum heads.Would also like to replace the plastic timing chain cover but am having trouble sourcing a polished aluminum one,if you know who produces them would be great.....thanks in advance





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