GT 40 Heads on 351 Windsor - Mustang Evolution

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Old 07-17-2012, 07:09 PM   #1
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GT 40 Heads on 351 Windsor

I would like to know if my heads M-6049-Y302 and GT40 lower intake manifold fits on 351 Windsor block.
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Old 07-17-2012, 07:28 PM   #2
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i didnt look up your heads. but 302 heads and 351 heads are interchangable. but in order to swap the 302 heads will need to be drilled out for 1/2" head bolts compared to 7/16"(302) head bolts.

as the for intake they are not interchangable. the 351 is about 1 1/4" wider. there is a place that makes a kit with spacers but its not cost efficient.
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Old 07-17-2012, 07:38 PM   #3
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Quote:
Originally Posted by dreamstang
i didnt look up your heads. but 302 heads and 351 heads are interchangable. but in order to swap the 302 heads will need to be drilled out for 1/2" head bolts compared to 7/16"(302) head bolts.

as the for intake they are not interchangable. the 351 is about 1 1/4" wider. there is a place that makes a kit with spacers but its not cost efficient.
Thanks for the info.
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Old 07-17-2012, 07:38 PM   #4
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your welcome.
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Old 07-18-2012, 08:20 AM   #5
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Re: GT 40 Heads on 351 Windsor

Quote:
Originally Posted by Lapida View Post
I would like to know if my heads M-6049-Y302 and GT40 lower intake manifold fits on 351 Windsor block.
Also, those heads are pretty small and will likely not perform well on a 351W.
Here's a link with the info.


GT40 Y Heads
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