Prices for all porting work will be between $70 and $110 depending on the desired package and that will also include return shipping within the US lower 48. If you live outside of the United States, a shipping quote will be provided when ordering. I definitely recommend contacting me to discuss what modifications will fit your high performance needs.

Make all checks or money orders out to Mark Smith.

Sport Performance Mod Package: $70

This package will be your all around performance increase that will give your engine the smooth, broad, linear powerband that is most needed and desired in any type of application whether it is backyard bashing with your buddies, club racing all the way up to pro level competition. This package will also give your engine noticeably better fuel economy with cooler overall running temperatures.

Race Performance Mod Package: $90

This package is designed for your competitive racer who needs that extra edge for serious competition. This package has all the benefits of the sport mod package with the added benefits of crank intake modifications along with intake and exhaust port cylinder modifications to achieve the desired low end, mid range and top end performance gains needed in any intermediate, expert or pro level racing applications.

Turbo Performance Mod Package: $110

This package is designed for the serious racer who wants the ultimate advantage in power and performance. This package has everything; smooth, broad, linear powerbands, great fuel economy, lower overall running temperatures, specialized intake and exhaust port modifications based on application, with the added benefit of continual power spooling performance that is similar to today’s high performance turbine engines. A turbo crankshaft gives you quicker throttle response with smooth controllable power, a mid range that will pull hard but not overpower the track surface and most importantly, it will give you that increase in peak rpm and horsepower that will continue to spool until you let off giving you the ultimate in top end speed.