Sportsman Racing Products 147550 SBC Forged Dished Piston Set, 4.165-Inch Bore, -16cc

Upgrade your Small Block Chevy engine with the Sportsman Racing Products 147550 piston set, engineered for performance-focused applications requiring forged piston strength and a dished crown profile. This set includes eight pistons designed for a 4.165-inch bore and 1.125-inch compression height, providing a precise fit for compatible SBC builds. The inverted dome design features a -16.00 cc volume to help support compression-ratio tuning and combustion-chamber compatibility.
The forged construction delivers enhanced durability for demanding street, strip, and competition environments. Each piston is configured with 1/16-inch, 1/16-inch, and 3/16-inch ring grooves, accommodating commonly specified performance piston ring packages. The dish profile helps provide additional valve-to-piston clearance and allows builders to tailor engine specifications around cylinder head volume, gasket thickness, and deck height.
Designed as a matched set of eight, the Sportsman Racing Products 147550 pistons are a practical choice for rebuilding or upgrading a compatible Small Block Chevy engine. Verify bore size, compression height, ring groove dimensions, connecting rod specifications, piston-to-wall clearance, and final compression ratio before installation. Professional engine assembly practices and manufacturer-recommended clearances should be followed to ensure reliable performance and service life.

Features:

• Brand: Sportsman Racing Products

• Part Number: 147550

• Application: Small Block Chevy

• Quantity: Set of 8 pistons

• Construction: Forged aluminum

• Piston Style: Inverted dome with dished crown

• Bore Size: 4.165 inches

• Compression Height: 1.125 inches

• Dish Volume: Minus 16.00 cc

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