Forged Piston L2166AF30

Forged pistons are the foundation of a reliable, high-revving engine—and the Speed Pro L2166AF30 delivers the strength and precision needed for sustained performance. Whether you're building a street engine or pushing limits on the track, these forged units resist detonation, handle elevated boost pressures, and maintain tight tolerances through heat cycles. The coated skirt minimizes friction and wear, extending engine life while maximizing horsepower transfer to the wheels.

• Forged construction
• Speed Pro brand
• 4.030 in bore
• Ring grooves: 5/64 x 5/64 x 3/16 in
• Plus 5.3 cc compression
• Coated skirt
• Small Block Chevy fitment
• Set of 8 pistons