Thread: 390 heads?
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Old 10-18-2003, 07:37 AM
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Cobra Make, Engine: HM-2027 / 427 SO
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What are the casting numbers on the heads? The 390 had many std/HP heads made for it's application. The CC volume was the big difference. As woodz stated the 390 and 428 shared some of the same heads in some applications. G.
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