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Sonnax HP-4L60E-01

Performance Pack 4L60-E (94-Later), 4L65-E & 4L70-E

Sonnax HP-4L60E-01

852-HP-4L60E-01

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Estimated ship date 11/29/17 if Ordered Today
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Sonnax HP-4L60E-01 Performance Pack 4L60-E (94-Later), 4L65-E & 4L70-E $132.96
Performance Pack
  • 4L60-E (94-Later), 4L65-E & 4L70-E

  • Sonnax HP-4L60E-01 Details

    Performance Packs

    • Boost Valve with O-Ring .490"
    • Elevated Pressure Regulator Spring
    • High RPM Pump Slide Spring
    • Spacer
    • 4th Servo Return Spring
    • Servo Cushion Spring
    • Servo Piston D-Ring Kit
    • 3-4 Accumulator Piston Kit
    • 3-4 Accumulator Spring
    • Servo Release Check Valve
    • Forward Accumulator Kit
    • Accumulator Valve Shim
    • TCC Valve
    • TCC Spring
    • Checkballs (8)
    • Separator Plate Plugs Not Shown
    • Twist Drills Not Shown
    • 1-2 Pinless Accumulator Piston Kit
    • 1-2 Accumulator Inner Spring
    • 1-2 Accumulator Outer Spring
    • 1-2 Accumulator Waved Spring

    1994-later

    Sonnax Performance Pack HP-4L60E-01 combines innovative heavy duty/performance calibration for firmer shifts under load without sacrificing low-speed drivability. The precision components in this kit upgrade the 4L60-E for maximum performance and durability by recalibrating pressures, recalibrating shift accumulation and including improved parts for areas that commonly wear. This kit is suitable for any heavy duty application and is a critical foundation for other upgrades when modifying the 4L60-E for high performance use.

    • Shorter shifts which get progressively firmer with load
    • Faster pressure increase and higher overall pressure for greater clutch/band holding power
    • Three ultra-reliable, patented, billet pinless accumulator pistons
    • Unique 1-2 accumulator spring combination for shifts with character
    • Improved high RPM pressure
    • Third accumulator valve gets the 2-3 right the first time, every time
    • Consistent results, no guessing on calibration
    • Prevents worn accumulators and separator plate
    • Optional TCC on-off conversion prevents excess TCC pressure
    NOTE: For more radical applications and even greater levels of performance, combine the Performance Pack with the Sonnax 1-2 and 4th Super Hold Servos. Order Part No. 77911-03K for 1-2 and Part No. 77767K for 4th.

    Specifications:

    Manufacturer's Part Number:
    HP-4L60E-01

    Sonnax Performance Packs offer innovative, heavy-duty calibration for firmer shifts under load without sacrificing low-speed drivability. Precision components upgrade your transmission for maximum performance and durability by recalibrating pressures and shift accumulation. Durable, improved parts target commonly worn areas in the transmission to repair damage and prevent future wear and tear.

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