Sportsman Racing Products 271065 Professional Series Forged Flat-Top Piston and Ring Set for Small Block Chevy, 4.155-Inch Bore

Upgrade your Small Block Chevy engine with the Sportsman Racing Products 271065 Professional Series piston and ring set. Designed for performance-focused engine builds, this kit includes a forged, flat-top piston engineered for reliable operation and consistent combustion characteristics. The 4.155-inch bore configuration makes it a precise choice for compatible SBC applications requiring a durable replacement or performance-oriented piston assembly.
The forged construction provides strength for demanding street, strip, and competition environments, while the flat-top design supports straightforward engine configuration and tuning. The piston features a 1.125-inch compression height and a minus 5.00 cc volume specification, helping builders match the component to the intended compression ratio and cylinder head combination. Verify engine specifications and required clearances before installation.
The included ring set uses a 1.2 x 1.5 x 3.0 mm groove configuration for compatibility with the piston design and proper sealing when installed with the correct procedures. This Sportsman Racing Products kit is supplied for Small Block Chevy applications and is intended for professional engine assembly. Always follow the piston manufacturer’s recommendations for ring orientation, end gap, bore preparation, lubrication, and final clearance measurements.

Features:

• Brand: Sportsman Racing Products

• Part Number: 271065

• Application: Small Block Chevy

• Piston Design: Forged flat-top

• Bore Size: 4.155 inches

• Compression Height: 1.125 inches

• Ring Groove Configuration: 1.2 x 1.5 x 3.0 mm

• Piston Volume: Minus 5.00 cc

• Kit Contents: Piston and ring set