STM-Spec Manley Custom 11.5:1 Pistons for 4G63 Evo 4-9 Hoosier 500+ pump gas cars

500+ pump gas cars

• Samco Hoses

for engine intake air filters

Measures 8-5/16" long with 7-5/8" between the bolt holes

Inline design works well as a stand-alone or as a booster pump

STM-Spec Manley Custom 11.5:1 Pistons for 4G63 Evo 4-9 Hoosier 500+ pump gas carsThe STM Spec Manley Evo IV IX Custom 11. 5: 1 Pistons for 2. 0L 4G63 are now available! These are the same gas ported pistons we have been testing in our STM Race Engines and easily trapping 165+ MPH in the 1 4! The STM Spec Pistons are only available in 85. 5mm bore and come with coated skirts, rings and wrist pins. If you have questions about your build, feel free to give us a call and we will get you on the right path to your goals. STM Spec