head swap

[the mitchell]

alright, since the 3.3 and the 3.8 share the same block, would the heads off of a turbo regal fit onto the 3.3 if i bored the cylinders out to 3.8". i was wondering because even ported and having multi-angle valve jobs, most stock cylinder heads have fairly bad flow ratings. just curious ever since i saw the heads from taperformance.com.

[TA^Guy]

I don't know about the 3.3->3.8 head swap but make sure you check how big the combustion chambers are on each head. Sure they may flow better but if you have a larger combustion chamber you might not see such a improvement due to loss of compression. Back when the 3rd Generation Camaros were popular to build alot of people would swap a set of 350 heads on their 305s in search of power. Typically they would only find out that the incress CC left them high and dry.

[Blackrider]

Originally posted by TA^Guy
I don't know about the 3.3->3.8 head swap but make sure you check how big the combustion chambers are on each head. Sure they may flow better but if you have a larger combustion chamber you might not see such a improvement due to loss of compression. Back when the 3rd Generation Camaros were popular to build alot of people would swap a set of 350 heads on their 305s in search of power. Typically they would only find out that the incress CC left them high and dry.

Werd Compression is the key in an N/A setup!