The pistons from Diamond Pistons are suitable for use on the street as well as at the drag strip. Domestic engines with high-compression, forced induction, or nitrous-fed engines are designed and tested for high-stresses. These forged aluminium pistons are precisely built for your engine to produce the performance you need, and they are engineered with lifespan, reliability, and strength in mind.

LS9/LSA Competition Series

Piston Features:
  • 3D milling on piston crowns for ready to install finish
  • Valve pockets designed to work with most aftermarket cylinder heads
  • Offset pins for quiet operation
  • Moly skirt coating for friction loss and skirt wear protection
  • Top ring down dimension: .250"
  • Ratios figured for .040 head gasket
  • Premium 1.2mm x 1.2mm x 3.0mm ring package included
  • Premium 8620 .185W wrist pins included
  • Valve pocket depth: 0.178" intake and .108" exhaust
  • 2618 material for High HP-NOS-Boost applications

Forced pin oilers from the oil ring; Pin Fitted; Moly Coated Skirts; 3D Pockets; Pins, Lock's & Support Rails (if required) included

More From This Category

MANLEY Piston, 1.195 in. Compression Distance, 81.5 mm Bore Size, 6.7cc Dome, For Acura 1.8 V-TEC, Each

MANLEY Piston, 1.195 in. Compression Distance, 81.5 mm Bore Size, 6.7cc Dome, For Acura 1.8 V-TEC, Each

$326.78

ICON Piston, 4.125 in. Bore, 1/16, 1/16, 3/16 in. Ring Grooves, For Chevrolet 400 Rod 6.000 Step Dish +15.2cc 2V, .060 Oversized, w/ Rings, Each

ICON Piston, 4.125 in. Bore, 1/16, 1/16, 3/16 in. Ring Grooves, For Chevrolet 400 Rod 6.000 Step Dish +15.2cc 2V, .060 Oversized, w/ Rings, Each

$1,808.72

KB Piston, 4 in. Bore, For Ford 302, Rod-5.090, D-Cup +1+2cc 2V, .060 Oversized, w/ Rings, Each

KB Piston, 4 in. Bore, For Ford 302, Rod-5.090, D-Cup +1+2cc 2V, .060 Oversized, w/ Rings, Each

$1,026.85

ICON Piston, 4 in. Bore, 1/16, 1/16, 3/16 in. Ring Grooves, For Chevrolet 350 Rod 5.700 Step Dish +18.6cc 2V, .030 Oversized, w/ Rings, Each

ICON Piston, 4 in. Bore, 1/16, 1/16, 3/16 in. Ring Grooves, For Chevrolet 350 Rod 5.700 Step Dish +18.6cc 2V, .030 Oversized, w/ Rings, Each

$1,582.15

KB Piston, 4 in. Bore, For Chevrolet 383, Rod 5.700, D-Cup +18cc 2V, .020 Oversized, w/ Rings, Each

KB Piston, 4 in. Bore, For Chevrolet 383, Rod 5.700, D-Cup +18cc 2V, .020 Oversized, w/ Rings, Each

$1,076.76