JE Premium Race Series Piston Ring Set - J300 STD Tension (JJ300F8-4145-5)

JE Premium Race Series rings feature the highest quality ductile iron top ring with the latest technology plasma-moly inlay. Taper facedreverse torsional second ringsor gapless seconds are combined with either standard or low tension oil control rings.

Specifications

• Bore: 4.145" +.005"
• Top RingHeight: 1/16"
• Top RingDescription (Material, Coating, Shape): Ductile Iron,Plasma Moly, Barrel Face, D-wall, Torsional
• Second Ring Height: 1/16"
• Second Ring Description (Material, Coating, Shape): Iron, Phosphate, Taper Face, D-wall,Reverse Torsional
• Oil Ring Height: 3mm
• Oil Ring Description (Material, Coating, Shape): Carbon Steel,Chrome, Full Seal, Flex Vent

With over 60 years of experience, JE Pistons is the leader in high performance forged pistons. We've built a reputation thatthe competition can only follow. JE has a history of manufacturing the highest quality pistons and componentsthat professional engine builders, race teams, and highperformance enthusiasts trust and rely on.

The top engine builders in NASCAR, ALMS, NHRA, AMA Supercross andothers choose JE Pistons over any other brand. For over 60 years, JE's position at the forefront of performance piston manufacturing has been a result of continuous research and development of unique materials, piston designs and technologies. Utilising State-Of-The-Art CNCmachines for manufacturing along with purpose-designed forgings, JE is able to maintain exacting specifications on each and every piston and hold tolerances to millionths of aninch. Also available from JE is industry-leading processes like Ultra Crown, a Digital Three Dimensional piston crownmachining process and Finite Element Analysis (FEA). FEA isa computer process whereby stress and fatigue are tested on a computer model before it goes into production. JE is the only performance piston manufacturer to earn the QS-9000 quality standard whichconfirms that JE provides customers the highest standards in quality control. In addition, we also have State-Of-The-Art inspection equipment and testing equipment which enables us to constantly bring you, the customer, the very latest in piston design configurations.