Wiseco 4072GFX GF-Style File-Fit Piston Ring Set for 4.070-Inch Bore

Upgrade engine sealing performance with the Wiseco 4072GFX GF-style piston ring set, designed for applications using a 4.070-inch bore. This file-fit ring set is engineered for precise installation and includes rings for one cylinder. Its configuration combines a 0.047-inch top ring, a 0.047-inch second ring, and a 3.0 mm oil ring for dependable control of combustion pressure and engine oil.
The Wiseco 4072GFX features a steel construction with a gas-nitrided finish for enhanced durability and wear resistance. Standard tension provides a balanced seal while helping support consistent operation across a wide range of performance and street applications. The GF-style design is well suited for builders who require accurately fitted piston rings during engine assembly.
File-fit rings allow the installer to set the end gap according to the specific engine, piston, fuel, and intended operating conditions. Proper gap adjustment and installation are essential for reliable performance, effective oil control, and long service life. Always follow the piston and ring manufacturer’s recommendations when preparing the rings for use.
This Wiseco piston ring set is supplied for one cylinder and is identified by part number 4072GFX. It is a practical replacement or build component for engines requiring a 4.070-inch bore and the specified ring package. Verify bore size, groove dimensions, ring thickness, and application requirements before installation.

Features:

• Brand: Wiseco

• Part Number: 4072GFX

• Ring Style: GF-style file-fit piston rings

• Bore Size: 4.070 inches

• Ring Thickness: 0.047-inch top ring, 0.047-inch second ring, and 3.0 mm oil ring

• Tension: Standard tension

• Material: Steel

• Finish: Gas nitrided

• Application: One-cylinder piston ring set

• Fitment: Designed for engines using a 4.070-inch bore