Advanced Clutch Technology (ACT) 600455 | ACT XACT Flywheel Prolite GMC Sprint SP 5.7V; 1975-1976

  • GMC Sprint Advanced Clutch Technology (ACT) FlyWheel
  • GMC Sprint Advanced Clutch Technology (ACT) FlyWheel
  • Advanced Clutch Technology (ACT) 600455 | ACT XACT Flywheel Prolite GMC Sprint SP 5.7V; 1975-1976

    • Catalog #: 00887737
    • MPN: 600455
    • Model Trim: SP
    • $273.00
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Product Description

Advanced Clutch Technology (ACT) 600455 - ACT XACT Flywheel Prolite GMC Sprint SP 5.7V; 1975-1976.

600455 is a Prolite flywheel, which is ACT’s lighter flywheel offering with lowest inertia. Prolite flywheels are designed for best throttle response and acceleration. Prolite flywheels are preferred for road racing or rally racing, and have reduced drivability. Materials are properly distributed for maximum strength, good heat tolerance and rigidity. ACT flywheels are serviceable and can be resurfaced with no need to purchase additional parts.


  • Dramatically improved engine response and acceleration, mild to moderate gear rattle
  • Heat-treated forging for strength and toughness, induction-hardened ring gears for maximum life
  • One piece construction allows less opportunity for failure and provides uniform efficient heat transfer from the clutch disc. No more warped inserts or loose ring gears
  • Recommended for race use
  • Forged, CNC machined and dynamically computer balanced for smooth high RPM reliability

Flywheel Tooth Count: 153

XACT Flywheel Prolite

SFI 1.1

Search Terms: 600455 act600455 Advanced Clutch Technology (ACT) ACT XACT Flywheel Prolite GMC Sprint SP 5.7V SP Transmission FlyWheels ACT XACT Flywheel Prolite ACT XACT Flywheel Prolite GMC Sprint SP 57V 1975 1976

Advanced Clutch Technology (ACT) 600455 FlyWheel Review(s)

About Advanced Clutch Technology (ACT)

History and information about Advanced Clutch Technology (ACT) and their products.

You are on this page because you are in the market for a new clutch, flywheel or some other performance part and the team at LMPERFORMANCE knows this can be a daunting task because there are many nuances that are peculiar and necessary for the selection of a top notch clutch or other performance item. Consideration must be given to engine torque, maximum RPM, available grip for street tires, DOT-T, drag slick and others, the type of driving whether it is on the street, for sport, for track events or for racing, and your driving style and by that we mean what you actually do and not what you should do or want to do, and lets not forget FWD/RWD/AWD.

For both performance and safety you will want to choose the best from a company that has proven itself in the aftermarket performance field and whose longevity gives it the expertise necessary to offer you a sans pareil product that can be installed with confidence in its ability to do what is designed to do. Advanced Clutch Technology is just such a company and it definitely has the performance parts experience since it has been in business successfully since 1994 and that is no easy feat in such a highly competitive field.

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