JE Pistons 4.390" Bore + .005" Rings Set 1/16" 1/16" 3/16", Std (100F8-4390-5) JJ100F8-4390-5
(Prior to Dispatch)
JE Pistons 4.390" Bore + .005" Rings Set 1/16" 1/16" 3/16", Std (100F8-4390-5)
JE Premium Race Seriesrings feature the highestquality ductile iron top ringwith the latest technologyplasma-moly inlay. Taperfaced reverse torsionalsecond rings or gaplessseconds are combined witheither standard or lowtension oil control rings.
Specifications
- Bore:4.390"
- Top RingHeight: 1/16"
- TopRing Description (Material,Coating, Shape): DuctileIron, Plasma Moly, BarrelFace, D-wall, Torsional
- Second Ring Height: 1/16"
- Second RingDescription (Material,Coating, Shape): Iron,Phosphate, Taper Face,D-wall, Reverse Torsional
- Oil Ring Height: 3/16"
- Oil Ring Description(Material, Coating, Shape):Carbon Steel, Chrome, SS50UStyle
With over60 years of experience, JEPistons is the leader in highperformance forged pistons.We've built a reputationthe competition can onlyfollow. JE has a history ofmanufacturing the highestquality pistons andcomponents that professionalengine builders, race teams,and high performanceenthusiasts trust and relyon.
The top enginebuilders in NASCAR, ALMS,NHRA, AMA Supercross andothers choose JE Pistons overany other brand. For over 60years, JE's position at theforefront of performancepiston manufacturing has beena result of continuousresearch and development ofunique materials, pistondesigns and technologies.Utilising State-Of-The-ArtCNC machines formanufacturing along withpurpose-designed forgings, JEis able to maintain exactingspecifications on each andevery piston and holdtolerances to millionths ofan inch. Also available fromJE is industry-leadingprocesses like Ultra Crown, aDigital Three Dimensionalpiston crown machiningprocess and Finite ElementAnalysis (FEA). FEA is acomputer process wherebystress and fatigue are testedon a computer model before itgoes into production. JE isthe only performance pistonmanufacturer to earn theQS-9000 quality standardwhich confirms that JEprovides customers thehighest standards in qualitycontrol. In addition, we alsohave State-Of-The-Artinspection equipment andtesting equipment whichenables us to constantlybring you, the customer, thevery latest in piston designconfigurations.