Cyl.heads

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Mar 11, 2006 | 08:42 PM

yomow

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From: Northern, Va

Cyl.heads

302, 351 carbed. & efi heads are there any diff. ??? other than ports & valve sizes. are thay interchangeable ???????

Don

Mar 12, 2006 | 12:50 AM

10MPG

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Yes,they interchange.

Mar 12, 2006 | 12:53 AM

mauicruza

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From: maui.HI

I'm sure different casting numbers and years have some differences. I do know that the 302s have 7/16" head bolts and 351w have 1/2" bolts. Several years ago I compared an 87 5.0 HO (non-GT40) with an E7 head from a 351w of about the same year and all I could find different was the bolt hole size. Even the valve sizes were the same!.

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