JE PISTONS J100F8-4080-5 JE Pistons Premium Race Series Piston Ring Set J100F8-4080-5, 4.080-Inch Bore, 8-Cylinder

The JE Pistons Premium Race Series Piston Ring Set is designed for high-performance and racing engines requiring dependable sealing and consistent oil control. Part number J100F8-4080-5 is engineered for a 4.080-inch bore and supplied as a complete kit for 8-cylinder applications. The file-fit design allows precise ring-gap adjustment during engine assembly to help accommodate specific performance requirements and operating conditions.
The set features a 1/16-inch compression ring, a 1/16-inch second ring, and a 3/16-inch oil ring. Ductile iron construction provides strength and durability under demanding cylinder pressures, while the plasma moly facing helps support wear resistance and reliable sealing. Standard-tension rings offer a practical balance of friction control, oil management, and long-term performance for race-oriented engine builds.
JE Pistons brings proven piston and ring technology to builders who need carefully matched components for demanding applications. Verify bore size, ring groove specifications, piston compatibility, and recommended end gaps before installation. Proper filing, cleaning, orientation, and break-in procedures are essential to achieving the intended performance of this Premium Race Series ring set.

Features:

• Brand: JE Pistons

• Part Number: J100F8-4080-5

• Series: Premium Race Series

• Application: 8-cylinder engine

• Bore Size: 4.080 inches

• Ring Design: File fit

• Ring Profile: 1/16-inch compression, 1/16-inch second, and 3/16-inch oil ring

• Material: Ductile iron

• Coating: Plasma moly

• Tension: Standard

• Package Type: Complete kit