Wiseco Pro Tru PTS505A3 SBC Flat-Top Forged Piston and Ring Kit, 4.030-Inch Bore, -5cc

The Wiseco Pro Tru PTS505A3 piston and ring kit is designed for Small Block Chevy engines requiring dependable forged piston performance and precise fitment. This kit features a 23-degree flat-top piston profile with a -5.00 cc volume, making it a practical choice for performance engine builds where compression characteristics and combustion efficiency are important. The 4.030-inch bore application supports common SBC overbore configurations while maintaining the durability expected from a forged piston.
The piston is manufactured with a 1.260-inch compression height and uses 1/16-inch, 1/16-inch, and 3/16-inch ring grooves. Included rings help provide a complete installation solution for builders assembling or refreshing a compatible Small Block Chevy engine. The flat-top design is well suited to applications using 23-degree cylinder heads and offers a straightforward configuration for performance-oriented street, strip, and competition builds.
Wiseco Pro Tru is known for producing application-focused engine components with attention to strength, consistency, and reliable operation. The PTS505A3 kit is intended for customers who need a forged piston and ring package matched to a 4.030-inch SBC bore. Always verify piston-to-wall clearance, deck height, valve clearance, connecting rod specifications, ring end gap, and final compression ratio before assembly. Professional engine-building practices and manufacturer-recommended clearances should be followed to ensure proper performance and service life.

Features:

• Brand: Wiseco Pro Tru

• Part Number: PTS505A3

• Application: Small Block Chevy engines

• Construction: Forged piston

• Piston Style: 23-degree flat-top design

• Bore Size: 4.030 inches

• Compression Height: 1.260 inches

• Piston Volume: Minus 5.00 cc

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

• Included Components: Piston and ring kit