I recently got a 72 Duster with a 318, 4 speed. It has an Edelbrock performer cam and intake, Holley 600 carb, and headers, but other than that I think its a stock rebuilt (around 1980) block. The heads are # 4027593, would going to 302 heads bump compression over the 593's? And would the 302's be a better performing head? Are 593's any good, what are they from?
I'm looking at going with a different cam, and trying to bump compression if posible without a complete rebuid. Its a good running motor with good power but I'm sure I can get more out if it. I was also thinking about doing some light porting(I've done a full port jof on a 440 with great results), wheather these heads are worth it or getting a set of 302's to bump compression. Thanks
Butch
I'm looking at going with a different cam, and trying to bump compression if posible without a complete rebuid. Its a good running motor with good power but I'm sure I can get more out if it. I was also thinking about doing some light porting(I've done a full port jof on a 440 with great results), wheather these heads are worth it or getting a set of 302's to bump compression. Thanks
Butch
