JE Ultra Series Chevrolet LS Gen III/IV Piston – 4.005 in. Bore – 1.304 in. CH, -5.00 CC
SKU: 361711R
JE Ultra, Chevrolet, LS Gen III/IV, 4.005 in. Bore, 1.304 CD, Flat Top, Right Piston
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.
- Designed for Power: Every feature on Ultra Series Pistons are optimized to perform high-horsepower racing engines
- 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
- Skirt Coating: Reduces friction and wear on piston skirts and cylinder walls while simultaneously reducing operating noise, especially on cold start
- Thermal Barrier Crown Coating: This ceramic-based coating reflects heat into the combustion chamber, therefore reducing piston crown temperatures and improving exhaust gas scavenging
- 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
- Lateral Gas Ports: Help maintain power-producing ring seal at the top compression ring, even in high RPM and high boost situations
- Optimized Pin Oiling: Enhanced pin oiling features keep pin, pin bores, and small-end lubricated for reduced heat, friction, and wear
- Made 100% in the USA
GTIN: 00193564199959
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| Cylinder Head | |
| Bore Diameter | |
| Piston Head Type | |
| Compression Height | |
| Piston Volume | |
| Piston Material | |
| Forging Type | |
| Piston Orientation | |
| Ring Set Included | |
| Top Compression Ring Thickness | |
| Second Compression Ring Thickness | |
| Oil Ring Thickness | |
| Wrist Pin Included | |
| Wrist Pin Material | |
| Wrist Pin Outer Diameter | |
| Wrist Pin Length | |
| Wrist Pin Wall Thickness | |
| Wrist Pin Retainer Included | |
| Ring Set Thickness |
Makes
Engines
Instructions: Enter a value in the un-shaded boxes below as they pertain to your engine.
Note: For pistons BELOW the block @ TDC – value in box must be a NEGATIVE number (-0.000)
Note: For pistons ABOVE the block @ TDC – value in box must be a POSITIVE number (0.000)
Note: For a DISH piston – value in box must be a NEGATIVE number (-0.0)
Note: For a DOME piston – value in box must be a POSITIVE number (0.0)
Note: Manipulate the DOME/DISH & PISTON to DECK volumes to get the ratio you want.