Superformance headers were developed to fit a stock OEM 351W exhaust port configuration.  With the development of the SBF large port heads from Ford Racing,  AFR or Dart, with the addition of a wider bolt pattern Firefly was able to develop these large port ceramic coated stainless steel headers to further increase flow over the standard Firefly 351W headers.

Click on any picture to enlarge





Large Port 351W head - Note additional header bolt holes

    FPP "Z" vs SPF headers




Final Product


FPP Customer Cars


$1,750.00 +S&H


We try to keep these in stock

 Call for availability


Call 606-798-6825


 Click here


Installation available @ Craig's Cobras




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