DIAMOND Racing STREET/STRIP DISH Pistons [Bore 4.000 | Stroke 3.622 | Rod 6.098 | C.D. 1.331 | Weight 443 | Pin .945 x 2.500 | CC's -13.7 | 62cc 9.7 | 66cc 9.3 | 70cc 9.0] (GM 6.0L LQ4 & LQ9) : COLORADOSPEED - LATE MODEL DOMESTIC (AMERICAN MUSCLE) | IMPORT (EUROPEAN | SPORT COMPACT) AUTOMOTIVE PERFORMANCE PARTS