Sportsman Racing Products 138726 Small Block Ford Forged Dished Piston Set, 4.030-Inch Bore, -14.5 cc

The Sportsman Racing Products part number 138726 forged piston set is designed for Small Block Ford applications requiring a 4.030-inch bore and a dished piston configuration. This set of eight pistons features a Ford inverted dome design with a -14.50 cc dish volume, helping support compression-ratio tuning for performance engine builds. Forged construction provides a strong, durable foundation for demanding street, strip, and competition applications.
Each piston is engineered with a 1.600-inch compression height and 1/16-inch, 1/16-inch, 3/16-inch ring grooves for compatible ring package selection. The dished crown and inverted dome profile are suited to engine combinations where combustion-chamber volume, piston-to-head clearance, and compression control are important considerations. Verify all clearances, ring specifications, and compression requirements before installation.
This Sportsman Racing Products piston set is supplied as eight matching pistons for a Small Block Ford engine build. The part number 138726 provides a convenient reference when selecting compatible components and replacement parts. Professional engine measurement and assembly practices are recommended to confirm bore sizing, deck height, valve clearance, and final operating specifications.

Features:

• Brand: Sportsman Racing Products

• Part Number: 138726

• Application: Small Block Ford engines

• Product Type: Forged dished piston set

• Quantity: Set of 8 pistons

• Bore Size: 4.030 inches

• Compression Height: 1.600 inches

• Dish Volume: -14.50 cc

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

• Piston Design: Ford inverted dome