Sportsman Racing Products 138089 Forged Flat Top Piston Set for Small Block Chevy

Sportsman Racing Products part number 138089 is a set of eight forged flat top pistons designed for Small Block Chevy applications. The pistons feature a 4.030-inch bore and a 1.425-inch compression height, providing key specifications for engine build planning and component selection.

Each piston uses a flat top design with a minus 5.00 cc volume. The ring grooves are sized for 1/16-inch, 1/16-inch, and 3/16-inch rings. These details support accurate piston, ring, and compression calculations when assembling a compatible Small Block Chevy engine.

This piston set is supplied as eight pieces for a complete engine application. Review the bore, compression height, ring groove sizes, and piston volume against the rest of the engine combination before installation. The Sportsman Racing Products 138089 set provides clearly defined forged piston specifications for builders replacing or upgrading pistons in a Small Block Chevy engine.

Features:

• Brand: Sportsman Racing Products
• Part Number: 138089
• Piston Type: Forged flat top
• Application: Small Block Chevy
• Set Quantity: Eight pistons
• Bore: 4.030 inches
• Compression Height: 1.425 inches
• Piston Volume: Minus 5.00 cc
• Ring Grooves: 1/16-inch, 1/16-inch, and 3/16-inch