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Part Number:
JE-377972

JE Pistons 377972 4.125 Bore 13 Degree Series

JE Pistons, Forged, Bore 4.125, Stroke 4.000, Rod Length 6.000, Flat Top -3.5cc, Set of 8, Fits All Pro, Brodix and Dart 13 degree

Special Price $1,133.99 Regular Price $1,259.99
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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 13 Degree high strength lightweight piston that significantly reduces friction in your engine. Lightweight and extremely durable
Includes:

  • Accumulator Grooves
  • Double Pin Oilers
  • .043, .043, 3.0mm ring package (not included)
  • Round Wire Locks Included
  • Wrist Pins Included

Compression Ratio:

  • 40cc:17.6:1
  • 45cc:16.2:1
  • 50cc:15.0:1

*Accomodates All Pro, Brodix and Dart 13 degree heads

More Information
CNC Part Number JE-377972
Price $1,259.99
Manufacturer's Part Number 377972
Brands JE
Part Types Engine Piston
Departments Parts
Vehicle Make Chevy SB
Bore Size 4.125
Crankshaft Stroke 4.000
Rod Length 6.000
Piston Type Flat Top
Compression Height 1.000
Piston Material 2618 Forged
Piston Ring Size .043in .043in 3.0mm
Wrist Pin Size 0.927
Custom Notices ⚠ PROP 65 WARNING
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