JE Piston
JE Pistons Ultra Series GM Gen III/IV LS 4.07in Bore/3.622in Stroke Set of 8 Pistons
Regular price
$1,264.18
Shipping calculated at checkout.
Part #: jep360769
JE Pistons new GM LS flat top Asymmetrical FSR (Forged Side Relief) forging design allows for the use of the most popular stroke and rod combinations while eliminating reluctor wheel clearance problems. Asymmetrical forging design maintains a larger skirt on the heavily stressed major thrust side, while reducing friction with a smaller skirt on the minor thrust side. The result is a high strength, lightweight piston that significantly reduces friction in your engine. Lightweight and extremely durable, JE pistons are machined for 1.2mm, 1.5mm, 3.0mm rings. Combination 12° & 15° Valve Pockets
Includes:Grain Flow Optimized Forging
Lateral Gas Ports
Ceramic Crown Coating
Perfect Skirt Coating
Accumulator Groove
Double Pin Oiling
Upgraded 9310 Pins and locks
Compression Ratio:
64cc 10.9:1
68cc 10.4:1
70cc 10.2:1
Includes:
Compression Ratio:
| Vehicle Make | Chevy SB |
|---|---|
| Bore Size | 4.070 |
| Crankshaft Stroke | 3.622 |
| Rod Length | 6.098 |
| Piston Type | Flat Top |
| Compression Height | 1.340 |
| Piston Material | 2618 Forged |
| Piston Ring Size | 1.2mm 1.5mm 3.0mm |
| Wrist Pin Size | 0.945 |
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