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.
Specifications:
| Description_ASM |
Chevrolet Small Block 350 |
| Description_DEF |
Engine Piston Kit |
| Description_DES |
Piston Set, 2618, Flat Top, 4.040 Bore, 1.550 CD, 0.927 Pin, Set of 8. |
| Description_EXT |
JE Ultra, Chevrolet, Small Block Chevrolet, 4.040 in. Bore, 1.550 CD, Flat Top, 8 Cyl. Piston Kit |
| Description_INV |
JE Pistons, Piston Kit |
| Description_FAB |
- 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
|
| Description_MKT |
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. |
| Description_SHO |
Piston Kit |
| Description_TLE |
Chevrolet 350, 4.040 Bore, Flat, Set of 8 |
| Title |
JE Ultra Series - Chevrolet, Small Block, 4.040 in. Bore, Piston Kit |
| Piston Average Weight |
405 |
| Make |
CHEVROLET |
| Piston Pin Material |
5115 |
| Bore Diameter |
4.040 |
| Piston Pin Wall Thickness |
0.130 |
| Engine - Web |
Small Block |
| Product Type |
Engine Piston Kit |
| Product Market |
Domestic |
| Compression Height |
1.550 |
| Wrist Pin Wall Thickness |
0.130 |
| Wrist Pin Length |
2.400 |
| Add-On |
927-073-MW |
| Piston Volume |
-1.50 |
| Prop 65 (C, R or CR) |
CR |
| Add-On |
J71408-4040-5 |
| Add-On |
927-2400-13-51C |
| Top Compression Ring Thickness |
0.0436 |
| Industry |
Automotive |
| Wrist Pin Outer Diameter |
0.927 |
| Ring Set Included |
No |
| Piston Pin Outside Diameter |
0.927 |
| Cylinder Head |
STD CHEVROLET 23 DEG |
| Prop 65 Yes/No |
Yes |
| Category Hierarchy |
Auto>JE Ultra Series>Piston Kits>Domestic |
| Second Compression Ring Thickness |
0.0440 |
| Piston Material |
2618 |
| Prop 65 - Short Label |
Prop 65 Warning Label.JPG |
| Wrist Pin Material |
5115 Low Carbon Steel, Case Hardened |
| Forging Type |
Round |
| Out of Stock Message |
Call for Availability |
| Ringset Included |
No |
| Piston Series |
JE Ultra Series |
| Piston Head Type |
Flat |
| Engine Type |
ICE |
| Oil Ring Thickness |
0.119 |
| Engine |
Small Block |
| Title - Web |
JE Ultra Series Chevrolet Small Block Piston Kit - 4.040 in. Bore - 1.550 in. CH, -1.50 CC |
| Piston Pin Length |
2.400 |
| Make - Web |
Chevrolet |
| Length |
6.0000 |
| Width |
12.0000 |
| Height |
26.0000 |
| Weight |
12.0000 |
