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Diamond Pistons Race Series 11577-R2-8 Pistons, Flat top, Series, Forged Aluminum, 4.065 in. Bore, +2.00cc Head Volume, Chevy, LS9/LSA, Set of 8

SKU: DPP11577-R2-8

Pistons

Diamond Pistons Race Series 11577-R2-8 Pistons, Flat top, Series, Forged Aluminum, 4.065 in. Bore, +2.00cc Head Volume, Chevy, LS9/LSA, Set of 8

SKU: DPP11577-R2-8

Pistons
A$2,889.09
Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.

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Description


Data: v2 - Desc: v4.2 - Upd: 2026-11-07 19:53:46

Data: v4.2 - Upd: 2026-11-09 06:16:28

Features

Note for Pistons, Rings, Rotors, Rods and engine internals

Unless otherwise specified, some brands supply brake rotors, pistons, strut mounts, rods and rings separately. In some cases, titles may indicate plural, or 'set' - eg the term “ring set” often refers to the rings for a single piston only. If you’re unsure about what’s included with this product, please contact our team for clarification.

(keyword: pistons)

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Diamond Pistons, Diamond Racing Products
StreetFX SKU dpp11577-R2-8
SFX Item ID 5523945
Accounting SKU dpp-11577-R2-8
Manufacturer SKU 11577-R2-8
Manufacturer UPC 193564374523
Alternative References 11577-R2-8, DPP-11577-R2-8

Pistons, Flat top, Race Series, Forged Aluminum, 4.065 in. Bore, +2.00cc Head Volume, Chevy, LS9/LSA, Set of 8

Diamond Pistons Race Series pistons will withstand some serious horsepower for your high performance engine. These 2618 aluminum pistons are not only significantly lighter than the factory pistons but also superior in strength. The 2618 alloy is specifically for high-horsepower, nitrous, and boosted engines making up to 2,000 hp.

Diamond Pistons Race Series pistons feature:
• 3D milling on piston crowns for "ready to install" finish
• Inside design forging with fully machined underskirts for maximum strength
• Valve pockets designed to work with most aftermarket cylinder heads
• Side gas ports for better ring seal
• Moly skirt coating for friction-loss and skirt-wear protection
• Premium H-13 wrist pins included; chamfered for round wire locks

Product Attributes
BrandDiamond Pistons
Manufacturer's Part Number11577-R2-8
Part TypePistons
Product LineDiamond Pistons Race Series Pistons
UPC193564374523
Piston Rings IncludedYes
Bore (in.)4.080 in.
Bore (mm)103.632mm
Stroke3.622 in.
Engine Stroke TypeStock
Actual Engine Displacement6.2L/378
Rod Length6.125 in.
Piston StyleFlat top, with two valve reliefs
Piston MaterialForged aluminum
Compression Height (in.)1.304 in.
Piston Head Volume (cc)+2.00cc
Wrist Pin StylePress-fit or floating
Wrist Pin Retainers IncludedYes
Wrist Pin IncludedYes
Pin Diameter (in.)0.927 in.
Piston Ring Thickness1.20mm x 1.20mm x 3.00mm
File FitYes
GaplessNo
Top Ring Thickness1.2mm
Top Ring MaterialSteel
Top Ring Facing MaterialGas nitrided
Second Ring Thickness1.2mm
Second Ring MaterialDuctile iron
Second Ring Facing MaterialDuctile napier
Oil Ring Thickness3.0mm
Oil Ring MaterialSteel
Oil Ring TensionStandard
RemanufacturedNo
QuantitySold as a set of 8.
NotesFits 15 degree heads only.

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