Sportsman Racing Products 138082 SBC Forged Flat Top Piston Set, 4.040-Inch Bore, -5 cc, Set of 8

Upgrade your Small Block Chevy engine with the Sportsman Racing Products 138082 forged flat top piston set. Designed for performance-focused engine builds, these pistons feature a 4.040-inch bore and a 1.560-inch compression height for reliable fitment in compatible applications. The flat top design and -5 cc volume support compression ratio tuning while maintaining a straightforward piston configuration for naturally aspirated and other performance-oriented builds.
Each piston is engineered with 1/16-inch, 1/16-inch, and 3/16-inch ring grooves to accommodate the appropriate ring package for the application. Forged construction provides the strength and durability needed for demanding street, drag, and competition use when paired with properly matched engine components and clearances. Verify bore size, compression height, ring specifications, deck height, and connecting rod configuration before installation.
This Sportsman Racing Products piston set includes eight pistons for a complete Small Block Chevy engine build. The 138082 set is intended for builders seeking dependable forged components with a flat top profile and consistent specifications. Proper installation requires professional measurement, ring fitting, piston-to-wall clearance verification, and confirmation that all components are compatible with the intended engine combination.

Features:

• Brand: Sportsman Racing Products

• Part Number: 138082

• Application: Small Block Chevy

• Construction: Forged aluminum

• Piston Style: Flat top

• Bore Size: 4.040 inches

• Compression Height: 1.560 inches

• Ring Grooves: 1/16 inch, 1/16 inch, and 3/16 inch

• Piston Volume: Minus 5 cc

• Quantity: Set of 8