Learn more about this engine at http://blogs.hotrod.com/409ci-pontiac-from-semco-racing-at-the-amsoil-engine-masters-challenge-2014-145331.html
This is an Engine Masters entry from Semco Performance. It’s a Pontiac 409 topped with ported Kauffman heads, and it made 637 horsepower and 538 lb-ft of torque during the dyno competition at the 2014 Amsoil Engine Masters Challenge Pokračování textu 630-Horsepower Pontiac 409ci by Semco Performance at the Amsoil Engine Masters Challenge 2014