Diamond LSX 12 Forged Pistons - 4.125 in Bore - 1.5 x 1.5 x 3.0 mm Ring Grooves - Minus 4.80 cc - GM LS-Series (Set of 8) 21300MR-O Adjustable pull-up

Adjustable pull-up

Aluminized Plastic / Fiberglass

A custom computer designed housing eliminates the use of multiple components

shroud housings

Diamond LSX 12 Forged Pistons - 4.125 in Bore - 1.5 x 1.5 x 3.0 mm Ring Grooves - Minus 4.80 cc - GM LS-Series (Set of 8) 21300MR-O Adjustable pull-upProduct Description: Piston LSX 12 Forged 4. 125 in Bore 1. 5 x 1. 5 x 3. 0 mm Ring Grooves Minus 4. 80 cc GM LS Series Set of 8 Take a look back at the company's humble roots, and rich, racing heritage. In the early days of hot rodding, those who sought optimum performance became innovators, pushing the envelope of speed in the quest for racing glory. Diamond Pistons, founded in 1968the heyday of muscle cars and drag racing was born of that