Sportsman Racing Products 138730 Forged Flat-Top Pistons for Small Block Ford 351W, 4.030-Inch Bore, Set of 8

Upgrade your Small Block Ford 351W engine with the Sportsman Racing Products 138730 forged flat-top piston set. Designed for performance-focused engine builds, these pistons feature a 4.030-inch bore and a 1.774-inch compression height for reliable fitment in compatible Windsor applications. The flat-top design and minus 5.00 cc volume support precise compression planning when matched with the appropriate cylinder heads, gasket thickness, deck height, and rotating assembly components.

Each piston is manufactured from forged material to provide the strength and durability required for demanding street, drag, and competition-oriented applications. The piston crown is configured for a flat-top combustion chamber profile, helping builders establish consistent chamber volume and optimize the overall engine combination. Verify piston-to-valve clearance, deck clearance, compression ratio, and bore compatibility before installation.

The Sportsman Racing Products 138730 set includes eight pistons for a complete V8 application. Each piston uses 1/16-inch, 1/16-inch, and 3/16-inch ring grooves, allowing compatibility with properly matched piston ring sets. This set is intended for Small Block Ford 351W engines using a 4.030-inch cylinder bore and should be installed by a qualified engine builder following the manufacturer’s recommended clearances and procedures.

Feature: Forged construction provides durable performance for high-demand engine applications.
Feature: Flat-top piston design supports efficient compression-ratio and combustion-chamber planning.
Feature: Designed for Small Block Ford 351W Windsor engines.
Feature: 4.030-inch bore size for compatible overbore applications.
Feature: 1.774-inch compression height for correct rotating assembly coordination.
Feature: Minus 5.00 cc piston volume for precise compression calculations.
Feature: 1/16-inch, 1/16-inch, and 3/16-inch ring groove configuration.
Feature: Complete set of 8 pistons for a Small Block Ford V8 engine.

Features:

• Forged construction provides durable performance for high-demand engine applications.

• Flat-top piston design supports efficient compression-ratio and combustion-chamber planning.

• Designed for Small Block Ford 351W Windsor engines.

• 4.030-inch bore size for compatible overbore applications.

• 1.774-inch compression height for correct rotating assembly coordination.

• Minus 5.00 cc piston volume for precise compression calculations.

• 1/16-inch, 1/16-inch, and 3/16-inch ring groove configuration.

• Complete set of 8 pistons for a Small Block Ford V8 engine.