Diamond Pistons Buick 231 Forced Induction Dish Series 21403-6 Domestic - 1000HP Rated - 2618 Material - Includes Pins and Rings
Diamond Pistons Buick 231 Forced Induction Dish Series 21403-6 Domestic - 1000HP Rated - 2618 Material - Includes Pins and Rings
A$2,867.85
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Description
Data: v2 - Desc: v4.2 - Upd: 2026-11-07 19:54:32
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 | dpp21403-6 |
| SFX Item ID | 5525234 |
| Accounting SKU | dpp-21403-6 |
| Manufacturer SKU | 21403-6 |
| Manufacturer UPC | 686162208647 |
| Alternative References | 21403-6, DPP-21403-6 |
Domestic Series - 1000HP Rated - 2618 Material - Includes Pins and Rings
Diamond Pistons Buick 231 Forced Induction Dish Series pistons are available for a variety of applications, including many GM V6 engines from the 1970s and '80s. Forged from aluminum with two valve reliefs, the dish-style pistons are offered in different bore sizes and numerous other options. Order individually or in a set of 8.
Additional details:
• 1,000 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 | |
|---|---|
| Brand | Diamond Pistons |
| Manufacturer's Part Number | 21403-6 |
| Part Type | Pistons |
| Product Line | Diamond Pistons Buick 231 Forced Induction Dish Series Pistons |
| UPC | 686162208647 |
| Piston Rings Included | Yes |
| Bore (in.) | 3.840 in. |
| Bore (mm) | 97.536mm |
| Stroke | 3.400 in. |
| Engine Stroke Type | Stock |
| Rod Length | 5.960 in. |
| Piston Style | Dish, with two valve reliefs |
| Piston Material | Forged aluminum |
| Compression Height (in.) | 1.850 in. |
| Piston Head Volume (cc) | +29.50cc |
| Wrist Pin Style | Floating |
| Wrist Pin Retainers Included | Yes |
| Wrist Pin Included | Yes |
| Pin Diameter (in.) | 0.940 in. |
| Piston Ring Thickness | 1/16 in. x 1/16 in. x 3/16 in. |
| File Fit | Yes |
| Gapless | No |
| Top Ring Thickness | 1/16 in. |
| Top Ring Material | Ductile iron |
| Top Ring Facing Material | Plasma-moly |
| Second Ring Thickness | 1/16 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 6. |
| Notes | Pistons are 2618 material. |
Compatibility
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