STM-Spec Manley Custom 11.5:1 Pistons for 4G63 Evo 4-9 Hoosier Measures 8-5/16" long with 7-5/8"

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

and most importantly protect your car from the overheating

Machined in the USA and finished with a stealth

please do additional research with your VIN to confirm part numbers

STM-Spec Manley Custom 11.5:1 Pistons for 4G63 Evo 4-9 Hoosier Measures 8-5/16" long with 7-5/8"The 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