JE Pistons Sbc P/Act Piston -4.8Cc 4.020 Bore, 3.562 Strk, 6.000 Rod, 217790
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Engineered for ExtremeDuty Alcohol and Nitrousapplications, these pistonsare perfect for drag race,ASCS and Sprint Car engines.Valve pockets are designed towork with Pro Action/ProTopline 23, Brodix 11Xand angle milled cylinderheads and a 2.750" pinprovides added stability toabsorb heavy loading. Offeredin .005" and .010" overboreto accommodate newaftermarket cylinder blocks.Ring grooves are machined for1/16, 1/16, 3/16 rings.
Includes:
- Pin#927-2750-15-51S (130g)
- Accumulator groove
- Double Spiro Locks#927-042-CS
- Doublepin oilers
Specifications:
- Part #:J217790
- CID: 361
- Bore: 4.020
- Stroke: 3.562
- RodLength: 6.000
- BlockHeight: 9.011
- Compression Height: 1.230
- Compression Ratio with58cc chamber volume: 11.3
- Compression Ratio with64cc chamber volume: 10.5
- Compression Ratio with72cc chamber volume: 9.6
- Dome Volume: -4.8cc
- Gram Weight: 438
- Footnote: Made To Order
- Oversize: .020
- Recommended Ring Set (CheckProseal listing to determineoil ring tension):J10008-4020-5
With over 60 years ofexperience, JE Pistons is theleader in high performanceforged pistons. We've built areputation that thecompetition can only follow.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.tilising State-Of-The-Art CNCmachines for manufacturingalong with purpose-designedforgings, JE is able tomaintain 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.