JE Pistons Sbc 4.155" Pistons +6.2Cc Dome 4.000" St 6.000" Rod 1.000" 182027
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These high-compressionpistons are compatible withmost aftermarket 23heads and are ideal for dragracing and circle trackapplications. Valve reliefswill accommodate oversizedvalves and long duration,tight lobe separation cams.Precision CNC ring groovesare designed for 1/16, 1/16,3/16 rings. Will not fit ProTopline or Brodix 11Xcylinder heads.
Includes:
- Pin #927-2750-15-51S(130g)
- Contactreduction grooves
- Double Spiro Locks#927-042-CS
- Doublepin oilers
Specifications:
- Part #: J182027
- CID:434
- Bore: 4.155
- Stroke: 4.000
- Rod Length: 6.000
- Block Height: 9.000
- Compression Height: 1.000
- Compression Ratio with58cc chamber volume: 15.5
- Compression Ratio with64cc chamber volume: 14.2
- Compression Ratio with76cc chamber volume: 12.2
- Dome Volume: 6.2cc
- Gram Weight: 449
- Footnote: Solid dome design,Oil Rail Support is Included
- Oversize: .030
- Recommended Ring Set(Check Proseal listing todetermine oil ring tension):J10008-4155-5
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.Utilising State-Of-The-ArtCNC machines formanufacturing along withurpose-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.