Manley Platinum Series Lightweight Pistons, -11.5cc Dish [Bore Size 4.065 | Rod Length 6.125 | Stroke 4.050 | Compression Distance 1.085 | Pin Diameter .927 | 74.5cc 10.04 | Piston Wt/Gms 388 | Piston & Pin Wt/Gms 483] (CHRYSLER 6.1L HEMI) : COLORADOSPEED - LATE MODEL DOMESTIC (AMERICAN MUSCLE) | IMPORT (EUROPEAN | SPORT COMPACT) AUTOMOTIVE PERFORMANCE PARTS