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Part Number:
JE-338686

JE Pistons 338686 GM LT1 (Gen V) Asymmetrical FSR Dome 4.070 Bore

JE Pistons, Forged, LT1 416, Bore 4.070, Stroke 4.000, Rod Length 6.125, Dome -4.8cc, 454 Grams, Set of 8

Special Price $915.29 Regular Price $1,016.99
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⚠ PROP 65 WARNING
⚠ WARNING: This product can expose you to chemicals, which are known to the State of California to cause cancer. Please contact us to obtain a list of harmful chemicals. For more information, go to www.P65Warnings.ca.gov.
JE Piston's new GM LT1 Inverted Dome 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, a 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.
Includes:
  • Accumulator Grooves
  • Double Pin Oilers
  • Offset Wrist Pin
  • Pin #927-2250-15-51C (106g) and #943-2250-20-51C
  • Round Wire Locks # 927-073-MW
    Compression Ratio:
  • 59cc 12.3:1
    Note: Stock rods must be honed to accept .927" Diameter Pin. Milling of rod balance PAD may be needed due to variation from Factory.
  • More Information
    CNC Part Number JE-338686
    Price $1,016.99
    Manufacturer's Part Number 338686
    Brands JE
    Part Types Engine Piston
    Departments Parts
    Vehicle Make Chevy LT
    Bore Size 4.070
    Crankshaft Stroke 4.000
    Rod Length 6.125
    Piston Type Dome
    Compression Height 1.115
    Piston Material 2618 Forged
    Piston Ring Size 1.2mm 1.5mm 3.0mm
    Wrist Pin Size 0.927
    Custom Notices ⚠ PROP 65 WARNING

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