JE 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: J77008-4600-5 CHEVROLET 632 BIG BLOCK


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Part #: 280263
Notes: 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: J77008-4600-5
MSRP: $984.19
Your Price: $885.23
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Specs

Block Height 10.195
Bore 4.6
CID 632
Comp Height 1.12
Comp Ratio @ 65cc 16.4:1
Comp Ratio @ 70cc 15.5:1
Comp Ratio @ 77cc 14.5:1
Dome Volume -7.3
Gram Weight 575
Oversize STD
Rod 6.7
Stroke 4.75

This Item Also Available In

Part Number Price Notes & Specs
280265 $843.02 Notes 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: J77008-4610-5
Block Height 10.195
Bore 4.61
CID 634
Comp Height 1.12
Comp Ratio @ 65cc 16.5:1
Comp Ratio @ 70cc 15.6:1
Comp Ratio @ 77cc 14.5:1
Dome Volume -7.3
Gram Weight 578
Oversize 0.01
Rod 6.7
Stroke 4.75
280266 $885.23 Notes 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
Block Height 10.195
Bore 4.625
CID 638
Comp Height 1.12
Comp Ratio @ 65cc 16.5:1
Comp Ratio @ 70cc 15.7:1
Comp Ratio @ 77cc 14.6:1
Dome Volume -7.3
Gram Weight 583
Oversize 0.025
Rod 6.7
Stroke 4.75

All Fitments

CHEVROLET
Year Model SubModel Cylinders Liter Aspiration Eng Desg. Fuel Notes
1970 - 2010 632 BIG BLOCK ALL ALL ALL ALL ALL ALL

Product Description

For over 60 years, JE Pistons has been the industry leader in forged racing pistons for Chevy, Ford, Mopar and Buick engines.

*Application Specific Forgings for an Optimized, Uniform Crown Thickness
*Contact Reduction Groove to Minimize Frictional Drag
*Accumulator Groove for Increased Top Ring Stability and Sealing
*CNC-Machined Side Relief with Lower Support Band for Additional Skirt Strength
*Honed Pin Bores, Double Pressure Fed Pin Oilers and Wire Locks Included

JE Pistons are sold as matched sets.

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