JE Pistons Big Block Nitrous Series Dome Top 293085R Pistons, Single - BBC 632 NOS
JE Pistons Big Block Nitrous Series Dome Top 293085R Pistons, Single - BBC 632 NOS
Description
Exclusive JE Pistons flash sale discount at StreetFX!
Talk about timing! This is a limited offer while stocks last on various JE Pistons part numbers. There's never been a better time to buy your JE Pistons upgrades, so what are you waiting for?!
This item is currently on sale!
Data: v2 - Desc: v4.2 - Upd: 2026-11-08 04:09:44
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)Important Note Regarding Nitrous & Pressurised Systems
Orders containing nitrous systems or other pressurised canisters may require additional handling and inspection prior to dispatch.
Due to the nature of these products and applicable transport and state regulations, each system is individually inspected, released, and purged where required to ensure compliance with air and road freight standards. While most orders ship within our normal timeframes, this process may occasionally result in slightly longer dispatch times than those advertised.
We do everything we can to minimise delays, and the vast majority of shipments move through without issue. If you are working to a tight deadline or require urgent delivery, please contact us prior to placing your order so we can confirm the most suitable options.
We appreciate your understanding and patience - this process ensures safe, compliant transport and delivery of your order.
(keyword: nos)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 | JE Pistons |
| StreetFX SKU | jep293085R |
| SFX Item ID | 4806437 |
| Accounting SKU | jep-293085R |
| Manufacturer SKU | 293085R |
| Manufacturer UPC | 193564196651 |
| Alternative References | 293085R, JEP-293085R |
Pistons, Single - BBC 632 NOS
JE Pistons big block nitrous series dome top pistons have ring lands designed for nitrous applications. Valve reliefs are designed to accept oversized valves and long-duration, wide-lobe separation camshafts, and they are also compatible with angle milled heads. Precision CNC-machined grooves accept 1/16, 1/16, 3/16 rings. They fit open chamber cylinder heads.
| Product Attributes | |
|---|---|
| Brand | JE Pistons |
| Manufacturer's Part Number | 293085R |
| Part Type | Pistons |
| Product Line | JE Pistons Big Block Nitrous Series Dome Top Pistons |
| UPC | 193564196651 |
| Piston Rings Included | No |
| Bore (in.) | 4.625 in. |
| Bore (mm) | 117.475mm |
| Stroke | 4.250 in. |
| Engine Stroke Type | Stock |
| Actual Engine Displacement | 9.4L/571 |
| Rod Length | 6.535 in. |
| Piston Style | Dome, with two valve reliefs |
| Piston Material | Forged aluminum |
| Compression Height (in.) | 1.120 in. |
| Piston Head Volume (cc) | +28.90cc |
| Wrist Pin Style | Press-fit or floating |
| Wrist Pin Retainers Included | Yes |
| Wrist Pin Included | Yes |
| Pin Diameter (in.) | 0.990 in. |
| Piston Ring Thickness | 0.043 in. x 1/16 in. x 3/16 in. |
| File Fit | No |
| Gapless | No |
| Top Ring Thickness | 0.043 in. |
| Second Ring Thickness | 1/16 in. |
| Oil Ring Thickness | 3/16 in. |
| Remanufactured | No |
| Quantity | Sold individually. |
| Notes | Designed to fit right exhaust valve orientation. Oil rail support included. Will also work with 638 cubic in. engines with a 4.750 in. stroke and 6.700 in. connecting rod. |
Compatibility
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