JE Pistons Sbf 4.125" Pistons +6.5Cc Dome 4.100" St 6.200" Rod 1.230" 207416
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Designed for use inaftermarket race blocks,these big bore domes willaccommodate larger valves andlong duration, tight lobeseparation cams. Compatiblewith most 20 wedgecylinder heads and willaccept moderate nitrousPrecision CNC machined ringgrooves accept 1/16", 1/16",3/16" rings. Pin upgraderecommended above 700 hp.Recommended ring set containslow tension oil ring, forstandard tension change toring prefix J100F8. HardenedNitrous Series (HNS) ringsalso available, change ringprefix to J820F8.
Includes:
- Pin #927-2750-15-51S(130g)
- Double Spirolocks #927-042-CS
- Double pin oilers
Specifications:
- Part #:J207416
- CID: 438
- Bore: 4.125
- Stroke: 4.100
- RodLength: 6.200
- BlockHeight: 9.480
- Compression Height: 1.230
- Compression Ratiowith 56cc chamber volume:16.2
- CompressionRatio with 60cc chambervolume: 15.3
- Compression Ratio with 64ccchamber volume: 14.4
- Dome Volume: 6.5cc
- Gram Weight: 449
- Oversize: std
- Recommended Ring Set (CheckProseal listing to determineoil ring tension):J10008-4125-5
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.