the heads are externally the same but the differences are:7/16" bolt diam on 302, and 1/2" dia for windsors,
and the chambers are bigger on windsor heads too, but there is a kit out there that allows you to shim up the bolts/holes, thereby allowing use of the bigger 351w heads on a 302 block :-)i do not know the company that makes the kit tho
and yes the exhausts are interchangeable, to some degree, mainly vehicle fit :-)
[ 12-30-2001: Message edited by: T-Bird-uzi ]
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