BBC Dome Piston Set 4.500 Bore +32.7cc

The RaceTec AutoTec Forged Piston set 1000680 is designed for Big Block Chevy 24° engines. These pistons are made from 4032 high-silicone aluminum alloy, known for its durability, wear resistance, low expansion rate, and low friction. They are suitable for muscle car restorations, performance street rods, spec racing classes, and can withstand mild nitrous kits, small turbos, or superchargers. Key features include CNC precision machined ring grooves, top ring land gas distribution grooves for improved ring seal, and diamond-turned skirts. The set includes wrist pins, pin fitting, wire locks, broached pin oilers, and an accumulator groove.