Part Number
JE-170673

JE Pistons 170673 Forged Big Duke/Big Chief GP 18° 4.600 Bore

JE Pistons, BBC 565, Bore 4.600, Stroke 4.250, Rod Length 6.385, Dome +13cc, 641 Grams, Set of 8

Special Price $1,111.40 Regular Price $1,262.95
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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 Pistons specifically designed for Big Duke/Big Chief cylinder heads and feature our race proven dome and skirt design. Valve reliefs are designed to accept oversized valves and long duration, tight lobe separation roller cams. Precision CNC machined ring grooves accept .043 D-wall, 1/16, 3/16 rings.

Includes:
  • Pin #990-2930-15-51S (150g)
  • Forced pin oiler, with annular oil reservoir
  • Double Spiro locks #990-042-CS
  • Vertical gas ports

    Compression Ratio:
  • 82cc 15.3
  • 87cc 14.5
  • 97cc 13.1
    Note: *Oil rail supports included. Made to order.*
  • More Information
    Price $1,262.95
    Vehicle Make Chevy BB
    Bore Size 4.600
    Crankshaft Stroke 4.250
    Rod Length 6.385
    Piston Type Dome
    Compression Height 1.270
    Piston Material 2618 Forged
    Piston Ring Size 1/16 3/16
    Wrist Pin Size 0.990
    Custom Notices ⚠ PROP 65 WARNING
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