11-02-2010, 10:42 AM
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CC Member
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Join Date: Jun 2008
Location: West Suburbs of Chicago,
IL
Cobra Make, Engine: Backdraft#357, 392CI Ford Racing, 459hp, 455ft/lbs , TKO 500, 3.43 Gears, Ceramic Coated Headers, Victor Jr. 750cfm, 17in Halibrand wheels, Sterling Gray/Silver Stripes, Gray Leather, Nitto NT05
Posts: 362
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Not Ranked
AFR heads out perform GT40X heads even after porting, polishing, milling & cam swap
Wow, 537 hp from a simple heads swap on an otherwise stock Ford crate 392 stroker, 107 hp over the advertised rating and 75 hp pick up on the dyno from a $1500 bolt on. I was suprised that it out performed even after the porting, polishing and milling the GT40X heads and adding a larger cam to the stoker vs. just installing the AFR 185 heads.
http://www.airflowresearch.com/artic...e004/A4-P1.htm
I somehow missed in my last post of the 10 article links: Ford Crate 392 Stroker GT40 Heads Actual HP Documented in Magazine Articles
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1/4 mile 11.92@115.6 and 60ft 1.632
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