SBC Dished Piston Set 4.040 Bore -12.3cc

This is a RACE TEC PISTONS (AutoTec series) Dished Piston Set, part number 1000130, designed for Small Block Chevy (SBC) engines. The set includes 8 pistons. These pistons are manufactured from a forged side relief 4032 alloy, making them suitable for street/strip performance applications. Key features include broached pin oilers for enhanced wrist pin lubrication, accumulator grooves, and come with pin fitting wrist pins and wire locks. The pistons have CNC machined ring grooves that accept 1.5mm (top), 1.5mm (second), and 3.0mm (oil) piston rings (rings are sold separately). The pistons have a coated skirt for reduced friction and improved durability.