426 Hemi

Machined from high Silicon 4032 alloy for tighter, quieter running clearances (part # 131834 is manufactured from 2618 alloy which by design requires slightly more cylinder to piston clearance). All part numbers utilize an application specific forging for a more efficient dome shape. These pistons are the perfect choice for your street Hemi engine. Valve pockets have been engineered to accommodate oversized valves and long duration, tight lobe separation cams. 4032 alloy pistons are precision CNC machined for 5/64, 5/64, 3/16 factory style rings. 2618 alloy pistons are CNC machined for 1/16, 1/16, 3/16 rings.

Includes:

  • Pin #031-2930-17-51S (175g)
  • Double spiro locks (#031-042-CS)
Part # Brand Bore Stroke Rod Deck Head CC Comp. Ratio Comp. Height Crown Vol. Ring Set Head Type Stock Action
131834 JE Pistons 4.255 4.150 6.860 10.699 165.0 11.7 1.765 88.00 J10008-4250-5 Dome Back Order
131834 JE Pistons 4.255 4.150 6.860 10.699 174.0 11.1 1.765 88.00 J10008-4250-5 Dome Back Order
118759 JE Pistons 4.290 3.750 6.860 10.699 168.0 10.8 1.955 88.00 JP00F8-4290-5 Dome In stock
118759 JE Pistons 4.290 3.750 6.860 10.699 174.0 10.2 1.955 88.00 JP00F8-4290-5 Dome In stock
118758 JE Pistons 4.280 3.750 6.860 10.699 168.0 10.8 1.955 88.00 JP00F8-4280-5 Dome Back Order
118758 JE Pistons 4.280 3.750 6.860 10.699 174.0 10.2 1.955 88.00 JP00F8-4280-5 Dome Back Order
232517 JE Pistons 4.500 4.150 6.860 10.699 168.0 10.4 1.785 62.30 J10008-4500-5 Dome Back Order
232517 JE Pistons 4.500 4.150 6.860 10.699 174.0 10.0 1.785 62.30 J10008-4500-5 Dome Back Order
131850 JE Pistons 4.255 3.750 6.860 10.699 168.0 10.7 1.955 88.00 JP00F8-4250-5 Dome In stock
131850 JE Pistons 4.255 3.750 6.860 10.699 174.0 10.1 1.955 88.00 JP00F8-4250-5 Dome In stock