86 4.3 heads on a 90 motor - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 05-24-2001, 07:09 PM
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86 4.3 heads on a 90 motor

what the dif on 86 heads will thay work?

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post #2 of (permalink) Old 05-25-2001, 02:32 AM
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Re: 86 4.3 heads on a 90 motor

The '86 heads will work all the up till '96 - the intake manifold bolt pattern is different though plus It should be a TBI engine too - the top of the intake runner is notched on the port injected engine - but a little grinding will work too

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post #3 of (permalink) Old 05-25-2001, 04:31 AM
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Re: 86 4.3 heads on a 90 motor

so use in 86 intake should be no problem or does it matter

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post #4 of (permalink) Old 05-25-2001, 02:08 PM
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Re: 86 4.3 heads on a 90 motor

It should reallly matter as long as it ain't the intake ports arent the ones that are cut out on the intake side - they don't seal in the middle of the intake runner- I have a set of ported '85's that I welded up and milled so I can use then with the normal intake gasket.

SPEED KILLS BUT YA GET THERE FASTER

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