SS "PRO-FILER 12° SPREAD PORT BIG BLOCK CHEVY HEADS

The cylinder head specialist at Steve Schmidt Racing have worked all summer to develop 2 new versions of our 12 Degree Pro-Filer cylinder heads, as a result of Pro Stock R&D program. We have developed a totally new cast-ing with a new intake port and exhaust port that has shown a 20 + horsepower improvement over our present 12 degree head. We have also developed a new Nitrous Version.