# Speed Pro L-2491NF 40 Speed-Pro Forged Pistons | Summit Racing

**Manufacturer:** Speed Pro  
**MPN:** `L-2491NF 40`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Speed Pro |
| Manufacturer name | Speed Pro |
| Manufacturer | Speed Pro |
| DimensionUnit | inch |
| Extra Product Name | Speed Pro L-2491NF 40 Speed-Pro Forged Pistons \| Summit Racing |
| UPC | 614046882423 |
| diameter | 0.927 |
| height | 1.43 |
| height_Attrib | Compression Height (in.) |
| length | 5.7 |
| length_Attrib | Rod Length |
| moq | 1 |
| MPN | L-2491NF 40 |
| multiple | 1 |
| qtyInStock | Jun 12, 2023 |
| SKU | SLP-L2491NF40 |
| tierMinQty1 | 1 |
| tierPrice1 | 641.9900 |
| width | 0.927 |
| width_Attrib | Pin Diameter (in.) |
| Brand | Speed Pro |
| Manufacturer's Part Number | L-2491NF 40 |
| Part Type | Pistons |
| Product Line | Speed-Pro Forged Pistons |
| Summit Racing Part Number | SLP-L2491NF40 |
| Piston Rings Included | No |
| Bore (in ) | 4.040 in. |
| Bore (mm) | 102.616mm |
| Stroke | 3.750 in. |
| Engine Stroke Type | Stroked |
| Rod Length | 5.700 in. |
| Piston Style | Flat top, with two valve reliefs |
| Piston Material | Forged aluminum |
| Compression Height (in ) | 1.430 in. |
| Piston Head Volume (cc) | +3.40cc |
| Wrist Pin Style | Press-fit or floating |
| Wrist Pin Retainers Included | Yes |
| Wrist Pin Included | Yes |
| Pin Diameter (in ) | 0.927 in. |
| Piston Ring Thickness | 1/16 in. x 1/16 in. x 3/16 in. |
| File Fit | No |
| Gapless | No |
| Quantity | Sold as a set of 8. |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Summit Racing | SLP-L2491NF40 | 641.99 | 1 | None | 1 |

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Structured data: `/python/html6/product/500/82500000/82972000/part_--L2491NF40---SpeedPro--e35d228b73.json`  
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