Diamond Pistons offer two new forged pistons for nitrous engines, one for 23-degree small-block Chevys and the other for a big-block Chevy 540-632 CID with Ray Franks’ Profiler Hit-man cylinder heads. Diamond Pistons provides hefty skirt walls and piston crowns, stout wrist pin bosses and trusses with a rigid shell to prevent piston deflection. The pistons are offered in either a natural alloy finish or coated. (more…)