JE Pistons 632 BBC 12/14 DEG Set of 8 Pistons

JE Pistons; Flat Top; For 12º Raptor, 12º Pro-Filer, Dart Big Chief 14º, Sonny Tru-Pro 14.5º & Brodix PB1200 Heads; For N/A Motors; Oil Rail Support is Included; Set of 8 Pistons; Recommended RingSet: J77008-4625-5
Bore: 4.625
Comp Ratio @ 77cc: 14.6:1
Gram Weight: 583
Oversize: 0.025
Stroke: 4.75
Comp Ratio @ 70cc: 15.7:1
Comp Height: 1.12
Comp Ratio @ 65cc: 16.5:1
Dome Volume: -7.3
CID: 638
Block Height: 10.195
Rod: 6.7