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Dart Pro 1 Aluminum heads vs. Vortec


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I'm looking into getting some aluminum heads to lighten up the ride a bit and these dont seem to be priced that bad.

 

http://froogle.google.com/froogle?price1=600&price2=700&btnP=Go&q=Dart+heads&price=between

 

My question is how much better are these comparied to my stock vortec heads that I have in there now? Whats the difference between all the ones listed there, they're different part numbers but besides that I cant find them. Do these heads benifit much from being ported? How much more of an agressive cam can I put into it? What gains can I expect?

 

 

Thanks for any help.

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http://www.dw1977.cz28.com/photo2.html

 

http://www.edelbrock.com/automotive/head_flowdata.html

 

http://chevyhiperformance.com/techarticles/41598/

 

http://www.kendrick-auto.com/head_flow_figures.htm

 

http://www.malcams.com/legacy/misc/headflow.htm

 

http://www.topher.net/~bearman/gmheadcomp.html

 

http://purplesagetradingpost.com/sumner/techinfo/heads1.html

 

http://www.geocities.com/z28esser/headcomp.html

 

you failed to mention WHICH size pro 1 head ports you were looking to compare to the vortecs, and what your current engine combo consists of ...displacement,cpr,cam,ETC. but this might help (above flow figures)

 

BTW that $693 is for EACH HEAD NOT TWO!

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