Image is a representation of this item. Actual item may vary.
Part Number:
JE-378004

JE Pistons 378004 4.125 Bore 13 Degree Series

JE Pistons, Forged, Bore 4.125, Stroke 3.800, Rod Length 5.850, Flat Top -4.5cc, Set of 8, Fits All-Pro, Brodix, and Dart 13 degree

Special Price $1,133.99 Regular Price $1,259.99
View Similar Items
⚠ 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:16.4:1
  • 45cc:15.1:1
  • 50cc:14.0:1

*Accomodates All Pro, Brodix and Dart 13 degree heads

More Information
CNC Part Number JE-378004
Price $1,259.99
Manufacturer's Part Number 378004
Brands JE
Part Types Engine Piston
Departments Parts
Vehicle Make Chevy SB
Bore Size 4.125
Crankshaft Stroke 3.800
Rod Length 5.850
Piston Type Flat Top
Compression Height 1.250
Piston Material 2618 Forged
Piston Ring Size .043in .043in 3.0mm
Wrist Pin Size 0.927
Custom Notices ⚠ PROP 65 WARNING
Other Customers Also Bought
PART #: UEM-IC938-075 Icon Pistons IC938-075 Fits Pontiac 468 Dish 10.6cc Bore 4.200
Icon Pistons IC938-075 Fits Pontiac 468 Dish 10.6cc Bore 4.200
Special Price $802.60 Regular Price $827.42
PART #: CCA-1418-12 1418-12
Comp Cams 1418-12 Magnum Roller Tip Rockers
$177.95
PART #: MAH-8700MS-12 Mahle Performance Piston Ring Set 8700MS-12, 87mm Bore
Mahle Performance Piston Ring Set 8700MS-12, 87mm Bore
$99.02
PART #: HOL-12-330 12-330 Holley 350 LPH Fuel Pump Module
12-330 Holley 350 LPH Fuel Pump Module
$406.95
PART #: DRP-52416 52416 Diamond Pistons BB Mopar 440 Forged Dish 4.350 Bore
52416 Diamond Pistons BB Mopar 440 Forged Dish 4.350 Bore
$1,111.86
PART #: TS-CR7560-5 CR7560-5
Total Seal Classic Race Piston Ring Set CR7560-5
$168.22
PART #: SCA-1-44602 1-44602 Scat 415 LS2 Stroker Kit, 11.5:1 Autotec Pistons, 58T, 4.125 Stroke
1-44602 Scat 415 LS2 Stroker Kit, 11.5:1 Autotec Pistons, 58T, 4.125 Stroke
Special Price $3,115.95 Regular Price $3,190.95
PART #: CP-SC7120X_1 SC7120X CP Forged Pistons - Acura/Honda - 3.307 Bore, 12.7:1
SC7120X CP Pistons, Forged - Acura/Honda - 3.307 Bore, 12.7:1
Special Price $842.92 Regular Price $947.10
PART #: UEM-IC984-040 Icon Pistons IC984-040 Fits SB Chrysler Dish 20.5cc Bore 4.040
Icon Pistons IC984-040 Fits SB Chrysler Dish 20.5cc Bore 4.040
Special Price $736.55 Regular Price $759.33