Mahle BBC228310D18 Big Block Chevy Dome PowerPak Piston Set 4.31" Bore, Stroke 4.375 Rod Length 6.385 Pin Dia. 0.99 Comp Height 1.228R Dome Volume -18 cc Weight Grams 321 C/R 10.3

The Mahle PowerPak is a complete, race proven piston assembly kit composed of hand deburred, forged, performance coated pistons, high quality steel pins, round wire locks and low drag performance rings. We race Mahle forged pistons in our dragster and highly recommend them for their strength and high quality GRAFAL coating.

Features: Forged Aluminum Pistons CNC machined crown Hand deburred finishing Forced pin oiling with machined drain backs Lightweight slipper skirt forgings CNC finished pin bores Race Proven reliable round wire locksPre-fitted German steel high strength pinsMahle's ultra flat ring grooves and low drag rings for improved sealing

Improved coating for less frictionThe piston skirts on Mahle pistons are coated with GRAFAL by Mahle. This coating helps to reduce friction, increase scuffing resistance while improving durability and enable a closer fitting piston to wall clearance for significantly lower engine noise.