Diamond Pistons Competition Series Pistons

5.0 out of 5 stars 1 Customer Reviews

Diamond Pistons Competition Series pistons are for those looking to take their engine to a whole new level of power. These forged aluminum pistons are superior in strength and provide extra protection during the high-stresses of high-compression, forced induction, or nitrous. Diamond Pistons Competition Series features: * 3D milling on piston crowns for "ready-to-install" finish * Generous valve pockets designed to work with stock or oversized valves and various cylinder heads * Constructed from forged 4032 or 2618 aluminum alloy (where specified) * Premium 8620 or H-13 steel wrist pins (where specified)

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Results 1 - 14 of 14

Diamond Pistons Competition Series Pistons 11545-R1-8-H

LS3/L92 4.070B/1.304CD/Kit

Part Number: DPP-11545-R1-8-H

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

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Estimated Ship Date: Dec 29, 2025 if ordered today

Diamond Pistons Competition Series Pistons 11503-R1-8

Diamond Pistons Competition Series Pistons 11503-R1-8

Pistons, Dish, Competition Series, Forged Aluminum, 3.905 in. Bore, -8.60cc Head Volume, Chevy, LS, Set of 8

Part Number: DPP-11503-R1-8

Not Yet Reviewed

Estimated Ship Date: Monday 11/24/2025

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Estimated Ship Date: Monday 11/24/2025

Diamond Pistons Competition Series Pistons 11517-R1-8-H

LS1 4.030B/1.304CD/Kit

Part Number: DPP-11517-R1-8-H

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

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Estimated Ship Date: Dec 29, 2025 if ordered today

Diamond Pistons Competition Series Pistons 11519-R1-8-H

LS1 4.030B/1.115CD/Kit

Part Number: DPP-11519-R1-8-H

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

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Estimated Ship Date: Dec 29, 2025 if ordered today

Diamond Pistons Competition Series Pistons 11521-R1-8-H

LS1 4.030B/1.115CD/Kit

Part Number: DPP-11521-R1-8-H

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

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Estimated Ship Date: Dec 29, 2025 if ordered today

Diamond Pistons Competition Series Pistons 11554-R1-8-H

LS3/L92 4.070B/1.304CD/Kit

Part Number: DPP-11554-R1-8-H

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

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Estimated Ship Date: Dec 29, 2025 if ordered today

Diamond Pistons Competition Series Pistons 11584-R1-8-H

LS3/L92 4.125B/1.115CD/Kit

Part Number: DPP-11584-R1-8-H

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

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Estimated Ship Date: Dec 29, 2025 if ordered today

Diamond Pistons Competition Series Pistons 10212-8

Competition Series - 900HP Rated - 2618 Material - Inboard Forging - Coated Skirts - Includes Pins and Rings

Part Number: DPP-10212-8

Not Yet Reviewed