https://www.gnarpowpow.com/tags/port-and-polish/ Tue 05 May 2026 01:25:32 +0200 https://www.gnarpowpow.com/videos/3146/how-to-save-money-by-port-polishing-stock-cylinder-heads-horsepower-s15-e2/
New high performance aluminum cylinder heads make great power. But, Horsepower has a much cheaper means to the same end. We'll show you how to port and polish your car's stock heads and spend less than a hundred bucks! It's step-by-step tutorial that you can handle at home. It just could be your biggest bang for the buck ever! ]]> Sun 03 Oct 2021 12:55:12 +0200 https://www.gnarpowpow.com/videos/3146/how-to-save-money-by-port-polishing-stock-cylinder-heads-horsepower-s15-e2/