MANLEY PLATINUM SERIES Standard Pistons, -31cc DISH [Bore Size 4.065" | Rod Length 6.125" | Stroke 4.100" | Comp Distance 1.065" | Pin Diam .927" | Piston Wt/Gms 413 | Valve Pocket Depth Int./Exh. .175" Trough] (GM LS & L92 exc/ LS7)

2618 high strength material lightweight design
Offset wrist pin design
Machined for reluctor wheel clearance
1.5, 1.5, 3mm ring package
Round wire locks
Forced pin oiling, pressure balance groove and precision pin fitting
Premium Chrome Moly wrist pins (Standard Series) included
9310 alloy pin (Extreme Duty Series) included: P/N 42542 2.300" x .210" wall (4.005"-4.080" bores) and P/N 42528 2.500" x .210" wall (4.125"-4.130" bores)