Thread: Vote 428 or aluminum 427FE??
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Old 06-22-2010, 07:57 PM
Excaliber Excaliber is offline
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Rodknock, most of those GM crate motors make their power from a low rpm roller cam, 5,200-5,500 rpm, in that range. Old school tech was based primarily on high rpm, thats a whole different setup for the heads, intake, etc.
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