Sportsman Racing Products 231308 SBC Flat Top Forged Pistons, 4.125-Inch Bore, -5cc, Set of 8

Upgrade your Small Block Chevy engine with the Sportsman Racing Products 231308 piston set. Designed for performance-focused builds, these forged 400 flat top pistons provide durable construction and a consistent fit for applications using a 4.125-inch bore. The flat top design and -5.00 cc volume support precise compression calculations when paired with the appropriate cylinder head, gasket, and deck configuration.
The 231308 pistons feature a 1.125-inch compression height and 1/16-inch, 1/16-inch, 3/16-inch ring grooves. This configuration is designed for compatible Small Block Chevy combinations and helps provide dependable ring installation and sealing when matched with the correct rings and engine components. Verify bore size, compression height, ring dimensions, piston-to-valve clearance, and final compression ratio before installation.
Each set includes eight Sportsman Racing Products forged pistons for a complete V8 application. The pistons are intended for builders seeking reliable components for street, strip, restoration, and custom performance projects. Professional installation and careful measurement are recommended to confirm compatibility with the connecting rods, crankshaft, cylinder heads, and intended operating conditions.

Features:

• Brand: Sportsman Racing Products

• Part Number: 231308

• Application: Small Block Chevy

• Construction: Forged

• Piston Style: 400 flat top

• Bore Size: 4.125 inches

• Compression Height: 1.125 inches

• Piston Volume: -5.00 cc

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

• Quantity: Set of 8