LS - Gen III/IV Rotating Assembly Kit - 389 Cubic Inch- Wet Sump
Factory Mast Premium Rotating Assembly Kit.
For use with Gen III/IV LS blocks
Looking for a premium product that supports high horsepower without sacrificing longevity and your wallet? Take all of the guess work out with our Factory Mast Premium Rotating Assemblies. Packaged with all the components you need to complete your Build, when choosing the Factory Mast Standard or Re-Sleeved Blocks.
100% made in USA - No Compromises
Forged & REM Isotropic Polished GM Factory L8T Crank
Main & Rod Journal Reground to Performance Tolerances
New Welded 58X Reluctor Wheel
Forged Connecting Rods, with 8720 Steel Rod Bolts
Factory Mast Pistons by Wiseco.
Wrist Pins featuring DLC Coated (Diamond Like Coating)