JE Pistons Sbc 4.155" Pistons -5Cc Flat 3.750" St 6.000" Rod 1.125" Ch 181940
(Prior to Dispatch)
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These classic, racewinning JE flat top pistonswork with most aftermarket23 heads. They haveextra deep valve pockets anda low-friction skirt design.These pistons are designed touse 1/16, 1/16, 3/16 rings or1/16, 1/16, 3mm rings, seefootnote J.
Includes:
- 350 Series use Pin#927-2500-15-51S (118g)
- 400 Series use Pin#927-2750-15-51S (130g)
- Contact Reduction Grooves
- Double Spiro Locks#927-042-CS
- DoublePin Oilers
Specifications:
- Part #: J181940
- CID:407
- Bore: 4.155
- Stroke: 3.750
- Rod Length: 6.000
- Block Height: 9.000
- Compression Height: 1.125
- Compression Ratiowith 58cc chamber volume:12.5
- CompressionRatio with 64cc chambervolume: 11.6
- Compression Ratio with 76ccchamber volume: 10.2
- Dome Volume: -5.0cc
- Gram Weight: 426
- Footnote: Oil Rail Support isIncluded
- Oversize:.030
- Recommended RingSet (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 withpurpose-designed forgings, JEis 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.