Sportsman Racing Products 140680 SBC Domed Forged Piston Set, 4.060 in Bore, +11 cc, Set of 8

Upgrade your Small Block Chevy engine with the Sportsman Racing Products 140680 domed forged piston set. Designed for performance-focused engine builds, this set includes eight pistons with a 4.060 in bore and a 1.260 in compression height. The domed crown adds approximately 11.00 cc, making these pistons a practical choice for applications that require increased compression and durable forged construction.
The 140680 pistons feature 1/16 in, 1/16 in, and 3/16 in ring grooves to accommodate common performance piston ring configurations. Their forged design is engineered to provide dependable strength under demanding operating conditions, while the consistent set of eight supports uniform assembly throughout the engine. These pistons are intended for Small Block Chevy applications and should be matched with the correct connecting rods, crankshaft, cylinder block, compression ratio, and ring package.
Before installation, verify piston-to-wall clearance, deck height, valve-to-piston clearance, compression height, ring compatibility, and final compression ratio according to the engine builder’s specifications. Proper machining, balancing, and assembly practices are essential for achieving reliable performance. The Sportsman Racing Products 140680 piston set combines a 4.060 in bore, domed profile, forged construction, and +11.00 cc volume in a complete eight-piston package for performance-oriented SBC builds.

Features:

• Brand: Sportsman Racing Products

• Part Number: 140680

• Application: Small Block Chevy

• Piston Type: Domed forged piston

• Bore Size: 4.060 in

• Compression Height: 1.260 in

• Dome Volume: Plus 11.00 cc

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

• Quantity: Set of 8