Wiseco Chevy LS Series -8cc FT 3.905in Bore 4.00in Stroke Piston Shelf Stock Kit
Wiseco Chevy LS Series -8cc FT 3.905in Bore 4.00in Stroke Piston Shelf Stock Kit
Description
Wiseco Chevy LS Series -8cc FT 3.905in Bore 4.00in Stroke Piston Shelf Stock Kit
Professional Series forged racing pistons from Wiseco are no-expense-spared pistons designed for the serious racers and builders. Packed full of custom-level performance and durability features and provided with premium rings, Professional Series pistons are designed and built for use in heavy to severe duty race builds. Remove your limits with Wiseco's Professional Series.
Additional Information
Wiseco Chevrolet LS Piston Set, 3.905 in. Bore, 1.115 in. Compression Height, 0.927 in. Pin Diameter, Professional, Set of 8.
Part Type
Engine Piston Set
Features
- ArmorGlide Skirt Coating: seizure resistant, friction reduction, and quieter operation
- Designed and built to withstand heavy to severe duty performance applications
- Engineered, forged, and machined in the USA from 2618 aluminum for improved tensile strength
- Forced pin oiling
- Fully machined crown features
- Precision ring grooves, anti-detonation groove, and additional ring seal improving features
Data: v2 - Desc: v4.2 - Upd: 2026-11-08 12:06:18
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: piston)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 | Wiseco, WISECO-PRO TRU |
| StreetFX SKU | wisK394X3905 |
| SFX Item ID | 4063843 |
| Accounting SKU | wis-K394X3905 |
| Manufacturer SKU | K394X3905 |
| Manufacturer UPC | 193564072153 |
| Alternative References | K394X3905, WIS-K394X3905 |
Piston and Ring Kit, Forged, Flat Top, 3.905 in. Bore, Steel Rings, Chevy, Small Block, Kit
Wiseco pulled out all of the stops with their Professional Series piston kits. These pistons accommodate the reluctor ring on stroker cranks without having to notch the pin bosses. Offset pins like OE and skirt shapes are specifically designed for street applications, making these the best piston kits available. Successfully tested in the highest horsepower applications, the Professional Series kits also utilize ArmorGlide skirt coating—which is the result of testing, development, and benchmarking through Wiseco's in-house dyno program. The outcome is minimized friction, maximized horsepower, and improved wear resistance. Not only is ArmorGlide a high-tech lubricant that reduces friction, but it also allows the piston to be fitted tighter within the bore than a non-coated piston. Anti-detonation and pressure seal grooves give you a better ring seal, reducing noise from the piston rock and delivering better performance. Order the pistons tailored for your application.
| Product Attributes | |
|---|---|
| Brand | Wiseco |
| Manufacturer's Part Number | K394X3905 |
| Part Type | Pistons |
| Product Line | Wiseco Professional Series Piston Kits |
| UPC | 00193564072153 |
| Piston Rings Included | Yes |
| Bore (in.) | 3.905 in. |
| Bore (mm) | 99.187mm |
| Stroke | 4.000 in. |
| Rod Length | 6.098 in. |
| Piston Style | Dish, with two valve reliefs |
| Piston Material | Forged aluminum |
| Compression Height (in.) | 1.115 in. |
| Piston Head Volume (cc) | +8.00cc |
| Wrist Pin Style | Press-fit or floating |
| Wrist Pin Retainers Included | Yes |
| Wrist Pin Included | Yes |
| Pin Diameter (in.) | 0.927 in. |
| File Fit | No |
| Gapless | No |
| Top Ring Thickness | 1.2mm |
| Top Ring Material | Steel |
| Top Ring Facing Material | Gas nitrided |
| Second Ring Thickness | 1.2mm |
| Second Ring Material | Cast iron |
| Second Ring Facing Material | Phosphate coated |
| Oil Ring Thickness | 3.0mm |
| Oil Ring Material | Carbon steel |
| Oil Ring Facing Material | Chrome |
| Oil Ring Tension | Standard |
| Remanufactured | No |
| Quantity | Sold as a set of 8. |
| Notes | Positive twist top ring and Napier scraper second ring. |
| Manufacturer Attributes | |
|---|---|
| Piston Volume | -8.00 |
| Compression Height | 1.115 |
| Piston Material | 2618 |
| Bore Diameter | 3.905 |
| Stroke | 4.000 |
| Rod Length | 6.125 |
| Piston Quantity | 8 |
| Category Hierarchy | Auto>Pistons>Piston Kits>Domestic>Professional |
| Industry | Automotive |
| Make | Chevrolet |
| Make - Web | Chevrolet |
| Product Market | Domestic |
| Product Type | Engine Piston Set |
| Engine Type | ICE |
| Engine | LS |
| Engine - Web | LS |
| Product Series | Professional |
| Title - Web | Professional Chevy LS Piston Set - 3.905 in. Bore - 1.115 .in CH, -8.00 CC |
| Forging Type | Strutted |
| Title | Wiseco - Chevrolet, LS, 3.905 in. Bore, Piston Set |
| Skirt Coating | Yes |
| Oil Ring Thickness | 3.0 |
| Ring Set Included | Yes |
| Second Compression Ring Thickness | 0.047 |
| Top Compression Ring Thickness | 0.047 |
| Wrist Pin Included | Yes |
| Wrist Pin Material | 5115 |
| Wrist Pin Outer Diameter | 0.927 |
| Wrist Pin Style | Floating |
| Out of Stock Message | Estimated Shipped Date 3-4 Weeks |
| Manufacturer Designation | Piston Set, Chevrolet, LS, 3.905 in. Bore, Professional, Set of 8 |
| Product Class | Engine Piston Set |
| Construction/Type | Wiseco Chevrolet LS Piston Set, 3.905 in. Bore, 1.115 in. Compression Height, 0.927 in. Pin Diameter, Professional, Set of 8. |
| Vehicle Designations | Chevrolet LS |
| Product Outline | <ul><li>Engineered, forged, and machined in the USA from 2618 aluminum for improved tensile strength</li><li>ArmorGlide? Skirt Coating: seizure resistant, friction reduction, and quieter operation</li><li>Fully machined crown features</li><li>Precision ring grooves, anti-detonation groove, and additional ring seal improving features</li><li>Forced pin oiling</li><li>Designed and built to withstand heavy to severe duty performance applications</li></ul> |
| Vehicle Brief | Chevy LS Series -8cc R/Dome 1.115x3.905 |
| Market Description | Professional Series forged racing pistons from Wiseco are no-expense-spared pistons designed for the serious racers and builders. Packed full of custom-level performance and durability features and provided with premium rings, Professional Series pistons are designed and built for use in heavy to severe duty race builds. Remove your limits with Wiseco?s Professional Series. |
Compatibility
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