Brake Parts
Cooling Parts
Drivetrain & Transmission Parts
Electrical Parts
Engines Parts
Exhaust Parts
Foot Controls & Pegs
Frame & Body
Fuel Parts
Handlebars & Controls
Ignition System Parts
Mounts & Hardware
Performance Chips & Programmers
Racing Exterior & Body Parts
Starting & Charging Parts
Suspension Parts
Windshield & Fairings
Repair Manuals
CLOSE ✕
Brake Parts
Cooling Parts
Drivetrain & Transmission Parts
Electrical Parts
Engines Parts
Exhaust Parts
Foot Controls & Pegs
Frame & Body
Fuel Parts
Handlebars & Controls
Ignition System Parts
Mounts & Hardware
Performance Chips & Programmers
Racing Exterior & Body Parts
Starting & Charging Parts
Suspension Parts
Windshield & Fairings
Repair Manuals
Description
As the leader in forged racing pistons, JE Pistons has applied over 75 years of experience to its wide range of premium forged pistons for domestic applications. Engineered, forged and machined 100% in the USA, JE Pistons are designed for each specific engine and racing application to provide the ultimate combination of durability and performance. From dirt track to drag strip, JE Pistons? performance is proven in victory lane time and time again. Equip your engine with the best in forged pistons.
JE pistons are all designed, forged, and machined in-house, allowing control over every step of the piston-making process. JE Pistons 7+ decades of experience in high-level racing has led to offering premium racing features, including full billet construction, EN plating, and purpose-designed coatings, to name a few.
Features & benefits
- Made 100% in the USA
- 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
- Accumulator groove (depending on application) helps reduce pressure from combustion gases, reducing ring fluttering and improving ring seal for consistent power
- Skirt coating (depending on application) reduces friction and wear on piston skirts and cylinder walls while simultaneously reducing operating noise
- Forged in the USA using 2618 aluminum, yielding high tensile strength needed for high-demand performance applications
- Designed specifically for each engine and use application 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.
- 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.
- Designed specifically for Chevrolet Small Block 18 Degree Engines. To provide optimized performance durability
- Includes high-quality wrist pins, and locks
Specifications
| 2nd Groove Width | 0.064 |
|---|---|
| 3D Undercrown Milling | No |
| Accumulator Groove | No |
| Add-On | J100F8-4030-5 |
| Anodize Top Ring Groove | No |
| Bore Diameter | 4.030 |
| Combo 2 | No |
| Compression Height | 1.250 |
| Compression Ratio | 0.46111111111111 |
| Connecting Rod Length | 6.000 IN |
| Contact Reduction | No |
| Country Of Origin | USA |
| Cylinder Head | CHEVROLET 18 DEG |
| Double Pin Oilers | Yes |
| DVGP | No |
| Econo Undercrown Milling | No |
| EN Plating | No |
| Engine | Small Block |
| Engine Detail | Small Block |
| Engine Displacement | 400 Small Block |
| Engine Family | Small Block |
| Engine Stroke | 3.500 |
| Engine Type | ICE |
| Exhaust Angle | 17 |
| Exhaust Depth | S |
| Forging Type | Round |
| Gas Distribution | No |
| Industry | Automotive |
| Intake Angle | 17 |
| Intake Depth | .290 |
| Lateral Gas Ports | No |
| Make | Chevrolet |
| Mill Undercrown | No |
| Oil Groove Width | 0.18800 |
| Oil Ring Thickness | 0.188 |
| Pin Fit | Yes |
| Piston Average Weight | 448 |
| Piston Head Type | Flat |
| Piston Material | 2618 |
| Piston Quantity | 8 |
| Piston Series | JE Pistons |
| Piston To Wall Clearance | -0.004 |
| Piston Volume | -6.00 |
| Product Market | Domestic |
| Product Type | Engine Piston Kit |
| Ring Set Included | No |
| Second Compression Ring Thickness | 0.0640 |
| Skirt Coat | No |
| Smooth Crown Finish | No |
| Thermal Crown | No |
| Top Compression Ring Thickness | 0.0640 |
| Top Groove Width | 0.06400 |
| Tuff Skirt | No |
| Ultra Dome | No |
| Ultra Groove | No |
| Ultra Groove Plus Gas Port | No |
| Vertical Gas Ports | No |
| Wrist Pin Length | 2.950 |
| Wrist Pin Material | 5115 Low Carbon Steel, Case Hardened |
| Wrist Pin Outer Diameter | 0.927 |
| Wrist Pin Wall Thickness | 0.150 |
Warranty
30 Months
Magnuson-Moss Warranty Act
Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)).
California residents
WARNING: This product can expose you to chemicals including nickel, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.
Carb Status
California carb status to be completed
CLOSE ✕
Recently viewed products
Subscribe to our newsletter to receive exclusive offers, product recommendations, expert tips and more.