heads and block

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Nov 12, 2006 | 07:56 PM

vinceanity92

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Joined: Oct 2005

Posts: 87

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From: indiana

Car: 1992 rs

Engine: 305 tbi

Transmission: 700r4

heads and block

will new style vortec centerbolt valvecover heads fit on a pre 87 block without modification, my dad told me i would have to modify water passages or get a new style block sorry for being dumb and thanx for your input

Nov 12, 2006 | 08:19 PM

jstoltz

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Joined: Dec 2001

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From: Tiffin OHIO

Car: 1987 Iroc-z Convertible

they will fit fine. the reason they are called centerbolt is because the valve cover bolts are in the center instead of perimeter mounted. head bolts are exactly the same. but you need a vortec style intake.