Boss 302 question

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Craig - 09 Nov 2006 00:12 GMT

I always heard that the Boss 302 engine, could be made with a 302 block and
putting on 351C 2V cylinder heads.

Is this true, and if so, do they bolt right on, or are there modifications
that need to be made?

TIA

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Grover C. McCoury III - 09 Nov 2006 00:53 GMT

FYI: The Boss 302 is normally considered a 302 block with Cleveland heads
although the canted-valve Cleveland heads were used first on the Boss 302
(1969 model) before the rest of the 351C engine was developed.

The Boss 302 and 351C-4V head castings are essentially the same *except* the
351C heads use a "dry deck" intake manifold and the 302 features a coolant
exit from the front of the manifold - this would be one of the biggest
issues to resolve.

Yet another $.02 worth from a proud owner of a 1970 Mustang Mach 1 featuring
a 351C 4V M-code @ http://community.webshots.com/album/18644819fHAehGJAjt

>I always heard that the Boss 302 engine, could be made with a 302 block and
>putting on 351C 2V cylinder heads.
[quoted text clipped - 3 lines]
>
> TIA

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Picasso - 09 Nov 2006 09:42 GMT

> Yet another $.02 worth from a proud owner of a 1970 Mustang Mach 1 featuring
> a 351C 4V M-code @ http://community.webshots.com/album/18644819fHAehGJAjt

That is a beautiful car you have there

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walt peifer - 09 Nov 2006 13:41 GMT

>> Yet another $.02 worth from a proud owner of a 1970 Mustang Mach 1
>> featuring a 351C 4V M-code @
>> http://community.webshots.com/album/18644819fHAehGJAjt
>
> That is a beautiful car you have there

351 c 2v heads can be fit on the windsor blocks. heads must be machined at
the water ports. use the 351c head bolts and a special intake to adaprt the
different deck height is needs. I beleive that several aftermarket companies
still list this manifold.

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