DIAMOND PISTONS - LS7 - 4.130" BORE - 4.000" STROKE - 6.077" ROD -3.84cc VOL - FLAT TOP - 11581-R1-8

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DIAMOND PISTON SET - LS - 4.130" BORE - 4.000" STROKE - 3.84cc VALVE RELIEFS - FLAT TOP - 11581-R1-8

• 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/1.2mm/3.0mm ring package included • Premium 8620 .185w wrist pins included • Valve pocket depth: 0.178” intake and .108” exhaust • 2618 material for high horsepower, nitrous, and forced induction applications

More Information
LJMS SKU 11581-R1-8
Brand Diamond Pistons
Part Type Pistons
Piston Bore Size 4.130"
Piston Pin Size .925"
Piston Stroke 4.000"
Piston Style FLAT TOP
Piston Volume -3.84cc