Sportsman Racing Products 140689 Small Block Ford Flat Top Forged Piston Set, 4.030-Inch Bore, Set of 8

Upgrade a Small Block Ford engine with the Sportsman Racing Products 140689 flat top forged piston set. Designed for performance applications, this set includes eight pistons engineered for a 4.030-inch bore and a 1.100-inch compression height. The forged construction provides dependable strength for demanding engine environments, while the flat top design supports consistent combustion chamber performance and flexible compression ratio planning.
The Sportsman Racing Products 140689 pistons feature a minus 5.00 cc volume and are configured with 1/16-inch, 1/16-inch, and 3/16-inch ring grooves. This groove combination accommodates commonly used performance piston rings and supports effective oil control when properly matched with the engine build. The pistons are intended for Small Block Ford applications and are suitable for builders seeking durable components for street, strip, or competition-oriented combinations.
This complete set of eight forged pistons is designed to help simplify engine assembly while maintaining consistent component matching across all cylinders. Verify bore size, compression height, ring specifications, connecting rod compatibility, valve-to-piston clearance, and the desired compression ratio before installation. The Sportsman Racing Products brand and part number 140689 make it easy to identify the correct replacement or performance upgrade for your Small Block Ford project.

Features:

• Brand: Sportsman Racing Products

• Part Number: 140689

• Application: Small Block Ford engines

• Piston Style: Flat top

• Construction: Forged

• Bore Size: 4.030 inches

• Compression Height: 1.100 inches

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

• Piston Volume: Minus 5.00 cc

• Quantity: Set of 8