Part Number
JE-321237

346 LS1 JE Pistons 8.5:1, 3.898 Bore, 321237

LS1 346 JE Pistons 15 degree, Extreme Duty FSR, Bore 3.898, Stroke 3.622, Rod Length 6.098, Dish -19.5cc, Set of 8 Pistons. Rings not included.

Special Price $723.32 Regular Price $821.95
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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.
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JE has redesigned and expanded their GM LS1 piston line. These new JE pistons utilize their dedicated Forged Side Relief (FSR) forging that was designed for high output engines. JE has found new ways to reduce weight yet maintain the durability needed for both street and racing applications. These pistons are machined for 1.5mm, 1.5mm, 3.0mm rings. A wrist pin upgrade is recommended for applications above 800hp.

Includes:
  • High strength FSR forging.
  • Accumulator grooves.
  • Double pin oilers.
  • Offset wrist pin.
  • .945 Pin diameter.
  • Pin 927-2250-15-51C - 106g or 945-2250-15C - 105g
  • Round wire locks 927-073-MW

    Compression Ratio:
  • 66cc 8.5:1
  • More Information
    Price $821.95
    Vehicle Make Chevy LS
    Bore Size 3.898
    Crankshaft Stroke 3.622
    Rod Length 6.098
    Piston Type Dish
    Compression Height 1.340
    Piston Material 2618 Forged
    Piston Ring Size 1.5 1.5 3.0mm
    Wrist Pin Size 0.945
    Custom Notices ⚠ PROP 65 WARNING
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