JE Pistons Sbc -18 F/T Piston -6Cc 4.165 Bore, 3.875 Strk, 6.000 Rod, 181961

These pistons feature JE'srace-proven low frictionskirt design and arecompatible with angle milledheads. Valve reliefs willaccommodate oversized valvesand long duration, tight lobeseparation cams. PrecisionCNC machined ring groovesaccept 1/16, 1/16, 3/16rings. These pistons utilisededicated left and right handforgings. Will not fit Brodix18x cylinder heads.

350 SeriesIncludes:

• Pin #927-2750-15-51S(130g)
• .073 alloyspiro lock #927-073-AS
• Double pin oilers 400series

400 Series Includes:

• Pin#927-2950-15-51S (140g)
• .073 alloy spiro lock#927-073-AS
• Double pinoilers

Specifications:

• Part #:J181961
• CID: 422
• Bore: 4.165
• Stroke: 3.875
• RodLength: 6.000
• BlockHeight: 9.000
• Compression Height: 1.062
• Compression Ratio with52cc chamber volume: 13.8
• Compression Ratio with55cc chamber volume: 13.3
• Compression Ratio with58cc chamber volume: 12.8
• Dome Volume: -6.0cc
• Gram Weight: 454
• Footnote: Oil Rail Support isIncluded, Made To Order
• Oversize: .040
• Recommended Ring Set (CheckProseal listing to determineoil ring tension):J10008-4165-5

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 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.