454 with factory H.O. heads? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

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454 with factory H.O. heads?

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12-05-2011, 08:11 AM	#11
BigBlocksRule Registered User Join Date: Jun 2008 Location: Lubbock, TX Posts: 2,047	Re: 454 with factory H.O. heads? cj, just pull a valve cover and post the casting numbers here. If it's a "performance" engine, they'll end in 188.

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