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
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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