pyagid wroteDirect swap yes, Power, the 304 is smaller in displacement, so I would say it would have less power
Seen some 304's that would out run 360's and even some 401's so dont count em out but definately stock for stock most 304's are suckin for air.
Check Ebay for a radiator theyrun something like $189 or so for a 4 core GM conversion replacement. Sorry to hear you have fallen over to join the DARK SIDE :?:
