Diamond Pistons Big Block 24/26 Degree Competition Series 20005-8 - 1200HP Rated - 2618 Material - Coated Skirts - Includes Pins and Rings
Diamond Pistons Big Block 24/26 Degree Competition Series 20005-8 - 1200HP Rated - 2618 Material - Coated Skirts - Includes Pins and Rings
A$3,629.69
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Description
Data: v2 - Desc: v4.2 - Upd: 2026-11-07 19:54:30
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 | dpp20005-8 |
| SFX Item ID | 5525138 |
| Accounting SKU | dpp-20005-8 |
| Manufacturer SKU | 20005-8 |
| Manufacturer UPC | 686162208173 |
| Alternative References | 20005-8, DPP-20005-8 |
Competition Series - 1200HP Rated - 2618 Material - Coated Skirts - Includes Pins and Rings
Diamond Pistons Big Block 24/26 Degree Competition 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 dome-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
• Vertical gas ports
• Moly coated skirts
• 3-D dome and pockets
• Inboard forging
• H-13 pins, locks and support rails (if required) included
| Product Attributes | |
|---|---|
| Brand | Diamond Pistons |
| Manufacturer's Part Number | 20005-8 |
| Part Type | Pistons |
| Product Line | Diamond Pistons Big Block 24/26 Degree Competition Series Pistons |
| UPC | 686162208173 |
| Piston Rings Included | Yes |
| Bore (in.) | 4.625 in. |
| Bore (mm) | 117.475mm |
| Stroke | 4.250 in. |
| Engine Stroke Type | Stroked |
| Rod Length | 6.385 in. |
| Piston Style | Dome, with single valve relief |
| Piston Material | Forged aluminum |
| Compression Height (in.) | 1.270 in. |
| Piston Head Volume (cc) | -45.00cc |
| Wrist Pin Style | Floating |
| Wrist Pin Retainers Included | Yes |
| Wrist Pin Included | Yes |
| Pin Diameter (in.) | 0.990 in. |
| Piston Ring Thickness | 0.043 in. x 0.043 in. x 3/16 in. |
| File Fit | Yes |
| Gapless | No |
| Top Ring Thickness | 0.043 in. |
| Top Ring Material | Stainless steel |
| Top Ring Facing Material | C-23 PVD Chrome |
| Second Ring Thickness | 0.043 in. |
| Second Ring Material | Ductile iron |
| Second Ring Facing Material | Ductile iron |
| Oil Ring Thickness | 3/16 in. |
| Oil Ring Material | Stainless steel |
| Oil Ring Tension | Standard |
| Remanufactured | No |
| Quantity | Sold as a set of 8. |
| Notes | Pistons are 2618 material. Includes H-13 wrist pins. |
Compatibility
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