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Part Number:
JE-371949

JE Pistons 371949 GM LS Asymmetrical FSR Flat Top 4.075 Bore

JE Pistons, Forged, LS3 426, Bore 4.075, Stroke 4.125, Rod Length 6.125, Flat Top -5cc, Set of 8

Special Price $818.99 Regular Price $909.99
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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 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:

  • Accumulator Grooves
  • Double Pin Oilers
  • Offset Wrist Pin
  • Pin #927-2250-15-51C (106g)
  • Round Wire Locks # 927-073-MW

    Compression Ratio:
  • 64cc 12.2:1
  • 68cc 11.9:1
  • 70cc 11.2:1
More Information
CNC Part Number JE-371949
Price $909.99
Manufacturer's Part Number 371949
Brands JE
Part Types Engine Piston
Departments Parts
Vehicle Make Chevy LS
Bore Size 4.075
Crankshaft Stroke 4.125
Rod Length 6.125
Piston Type Flat Top
Compression Height 1.050
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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