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Diamond Pistons Big Block 24/26 Degree Street/Strip Dish Series 12458-8 Domestic - 1200HP Rated - 2618 Material - Includes Pins and Rings

SKU: DPP12458-8

Pistons

Diamond Pistons Big Block 24/26 Degree Street/Strip Dish Series 12458-8 Domestic - 1200HP Rated - 2618 Material - Includes Pins and Rings

SKU: DPP12458-8

Pistons
A$3,291.93
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 19:54:24

Data: v4.2 - Upd: 2026-11-07 20:12:28

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 dpp12458-8
SFX Item ID 5524972
Accounting SKU dpp-12458-8
Manufacturer SKU 12458-8
Manufacturer UPC 686162207374
Alternative References 12458-8, DPP-12458-8

Domestic Series - 1200HP Rated - 2618 Material - Includes Pins and Rings

Diamond Pistons Big Block 24/26 Degree Street/Strip Dish Series pistons are available for a variety of applications, including many Chevrolet V-8 engines from 1965-90. Forged from aluminum with single valve relief, these dish-style pistons are offered in different bore, stroke, and rod length sizes—along with several other options. Order individually or in a set of 8.

Additional details:
• 1,200 hp rated
• Forced pin oilers from the oil ring
• Pin fitted
• 3-D pockets
• Designed for mild boost applications
• Pins, locks and support rails (if required) included

Product Attributes
BrandDiamond Pistons
Manufacturer's Part Number12458-8
Part TypePistons
Product LineDiamond Pistons Big Block 24/26 Degree Street/Strip Dish Series Pistons
UPC686162207374
Piston Rings IncludedYes
Bore (in.)4.600 in.
Bore (mm)116.840mm
Stroke4.500 in.
Engine Stroke TypeStroked
Rod Length6.700 in.
Piston StyleDish, with single valve relief
Piston MaterialForged aluminum
Compression Height (in.)1.245 in.
Piston Head Volume (cc)+26.00cc
Wrist Pin StyleFloating
Wrist Pin Retainers IncludedYes
Wrist Pin IncludedYes
Pin Diameter (in.)0.990 in.
Piston Ring Thickness1/16 in. x 1/16 in. x 3/16 in.
File FitYes
GaplessNo
Top Ring Thickness1/16 in.
Top Ring MaterialDuctile iron
Top Ring Facing MaterialPlasma-moly
Second Ring Thickness1/16 in.
Second Ring MaterialDuctile iron
Second Ring Facing MaterialDuctile iron
Oil Ring Thickness3/16 in.
Oil Ring MaterialStainless steel
Oil Ring TensionStandard
RemanufacturedNo
QuantitySold as a set of 8.
NotesPistons are 2618 material.

Compatibility

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