JE Pistons 350 SBC ULTRA FT GP Set of 8 Pistons
JE Pistons 350 SBC ULTRA FT GP Set of 8 Pistons
Description
JE Pistons 350 SBC ULTRA FT GP Set of 8 Pistons
JE Auto forged pistons from JE Pistons are the result of over 75 years of industry leading experience extended to our range of premium forged pistons for Chevrolet Small Block 2323 Degree Engines. JE Pistons are designed for each specific engine and racing application to provide the ultimate combination of durability and performance. From drift track to drag strip, JE Pistons' performance is proven in victory lane time and time again. Equipped with the following custom level features
Additional Information
4.030 in. Bore, 1.550 CD, Flat Top, -1.8 cc, 8 Cyl. Piston Kit
Part Type
Engine Piston Kit
Features
- Accumulator Groove: A specialty groove between the top and second ring provides added volume for blow-by gases. This helps reduce pressure between the rings, improving top ring seal and minimizing ring flutter at high cylinder pressures.
- Contact Reduction: Reduce the amount of contact area against the cylinder wall when the piston "Rocks over". Contact reduction also serves to disrupt the flame travel into the crevice area causing a reduction in detonation.
- Designed specifically for Chevrolet Small Block 23 Degree Engines. To provide optimized performance durability
- Double Pin Oilers: Deliver twice the amount of oil to the wrist pin as compared to the standard single pin oiler.
- Forged in the USA using 2618 aluminum, yielding high tensile strength needed for high-demand performance applications
- Includes high-quality wrist pins, and locks
- Lateral Gas Ports: This process mills slots into the top of the top ring groove and provides a pathway for combustion pressure to get behind the top ring. Resulting in increased ring seal and is most common in circle track applications.
- Made 100% in the USA
- Pin Fit: The pin bore is precision honed to attain an exact pin clearance. Clearances typically range from .0003 to .0010 between the wrist pin and pin bore.
- Proprietary Forged Side Relief (FSR) forging design minimizes friction and power loss with reduced skirt width and saves additional weight with a shorter wrist pin
Data: v2 - Desc: v4.2 - Upd: 2026-11-08 03:58:53
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 | JE Pistons |
| StreetFX SKU | jep173617 |
| SFX Item ID | 4359005 |
| Accounting SKU | jep-173617 |
| Manufacturer SKU | 173617 |
| Manufacturer UPC | 173617 |
| Alternative References | 173617 |
| Manufacturer Attributes | |
|---|---|
| Add-On | 927-073-MW |
| Piston Volume | -1.50 |
| Top Compression Ring Thickness | 0.0436 |
| Second Compression Ring Thickness | 0.0440 |
| Oil Ring Thickness | 0.119 |
| Wrist Pin Wall Thickness | 0.130 |
| Wrist Pin Outer Diameter | 0.927 |
| Compression Height | 1.550 |
| Wrist Pin Length | 2.400 |
| Piston Material | 2618 |
| Piston Average Weight | 395 |
| Bore Diameter | 4.030 |
| Industry | Automotive |
| Make | Chevrolet |
| Make - Web | Chevrolet |
| Product Market | Domestic |
| Product Type | Engine Piston Kit |
| Piston Head Type | Flat |
| Piston Series | JE Ultra Series |
| Title | JE Ultra Series - Chevrolet, Small Block, 4.030 in. Bore, Piston Kit |
| Title - Web | JE Ultra Series Chevrolet Small Block Piston Kit - 4.030 in. Bore - 1.550 in. CH, -1.50 CC |
| Ring Set Included | No |
| Forging Type | Round |
| Engine | Small Block |
| Engine - Web | Small Block |
| Cylinder Head | STD CHEVROLET 23 DEG |
| Engine Type | ICE |
| Wrist Pin Material | 5115 Low Carbon Steel, Case Hardened |
| Out of Stock Message | Please Allow Approximately 3 Weeks or Less for Shipping |
| Bore Diameter - Web | 4.030 IN |
| Category Hierarchy | Auto>JE Ultra Series>Piston Kits |
| Manufacturer Designation | Piston Set, 2618, Flat Top, 4.030 Bore, 1.550 CD, 0.927 Pin, Set of 8. |
| Product Class | Engine Piston Kit |
| Construction/Type | JE Ultra, Chevrolet, Small Block Chevrolet, 4.030 in. Bore, 1.550 CD, Flat Top, 8 Cyl. Piston Kit |
| Vehicle Designations | Chevrolet Small Block 350 |
| Product Outline | <ul><li>Designed for Power: Every feature on Ultra Series Pistons are optimized to perform high-horsepower racing engines</li><li>Aligned Grain Flow Technology: Exclusively available on JE Ultra Series, this proprietary, in-house forging process maximizes tensile strength to withstand the stresses of high-performance engine environments</li><li>Skirt Coating: Reduces friction and wear on piston skirts and cylinder walls while simultaneously reducing operating noise, especially on cold start</li><li>Thermal Barrier Crown Coating: This ceramic-based coating reflects heat into the combustion chamber, therefore reducing piston crown temperatures and improving exhaust gas scavenging</li><li>High-Strength Wrist Pins: Premium thick-wall wrist pins are manufactured by Trend Performance in the USA and are designed for the demands of high-performance/power-adder builds</li><li>Lateral Gas Ports: Help maintain power-producing ring seal at the top compression ring, even in high RPM and high boost situations</li><li>Optimized Pin Oiling: Enhanced pin oiling features keep pin, pin bores, and small-end lubricated for reduced heat, friction, and wear</li><li>Made 100% in the USA</li></ul> |
| Vehicle Brief | JE Pistons, Piston Kit |
| Market Description | Ultra Series forged pistons from JE are the industry?s strongest, most fully featured pistons available off the shelf. Offered for a wide range of domestic applications from LS to Big Block and HEMI to Ford Modular, Ultra Series pistons feature JE?s proprietary Aligned Grain Flow forging technology providing next-level tensile strength ideal for the extreme cylinder pressures of power adder engine builds. Equipped with custom level features including thermal barrier crown coating, skirt coating, gas ports, and more, Ultra Series are the ideal pistons for your boost-heavy or nitrous-huffing V8 engine build. As with all JE Pistons products, Ultra Series pistons are made 100% in the USA. |
Compatibility
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