JE Pistons Sbc 4.155" Pistons -28Cc Dish 3.750" St 6.000" Rod 1.125" C 170818
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These pistons arespecially designed for forcedinduction and nitrousapplications. Pistons include.310" pocket depths andprecision CNC machined ringgrooves that accept 1/16,1/16, 3/16 rings.
Includes:
- Pin #927-2950-15-51S(140g)
- Contactreduction grooves
- Double Spiro Locks #927-042-CS
- DoublePin Oilers
Specs:
- Part #: J170818
- CID: 407
- Bore:4.155
- Stroke: 3.750
- Rod Length: 6.000
- Block Height: 9.000
- Compression Height:1.125
- CompressionRatio with 58cc chambervolume: 9.7
- Compression Ratio with 64ccchamber volume: 9.2
- Compression Ratio with 76ccchamber volume: 8.6
- Dome Volume: -28.0cc
- Gram Weight: 476
- Footnote: Oil Rail Support isIncluded
- Oversize:0.030
- RecommendedRing Set (Check Proseallisting to determine oil ringtension): J10008-4155-5
Factory GM heads areused to define standard valvespacing and angle (thus23) for many small blockChevy Additionally most23 aftermarket cylinderheads incorporate what iscommonly known as "60/40Shift" in order to allow forlarger valves. All JE flattop and inverted dome shelfpiston set designsaccommodate "60/40 Shift" andwill work with mostaftermarket 23 cylinderheads, including those withoversized valves and anglemilled surfaces. TFS "TwistedWedge", AFR227 and Brodix 10Xcylinder heads will requirecustom pistons.
Withover 60 years of experience,JE Pistons is the leader inhigh performance forgedpistons. 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 enginelders in NASCAR, ALMS, NHRA,AMA Supercross and otherschoose JE Pistons over anyother 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 equipmenttesting equipment whichenables us to constantlybring you, the customer, thevery latest in piston designconfigurations.