The ACT 600412 XACT Prolite flywheel is ACT's lightest flywheel offering with the lowest rotational inertia, designed for the sharpest throttle response and quickest acceleration on classic and Fox-body Ford Mustang applications. Prolite flywheels are preferred for road racing or rally racing and carry somewhat reduced low-speed drivability versus a heavier stock flywheel. Material is properly distributed for maximum strength, good heat tolerance, and rigidity. The flywheel is forged, CNC-machined, and dynamically computer balanced for smooth high-RPM reliability, and one-piece construction eliminates warped inserts or loose ring gears. It is fully serviceable and can be resurfaced with no additional parts required. Counterweight bolts (5/16"-18 x 1/2") are included.
Specifications:
- Friction Surface Diameter: 10.5 in
- Product Weight: 14.4 lbs
- Construction: Chromoly steel, forged and CNC-machined
- SFI Rating: 1.1
- Ring Gear Mount: Flat
- Includes: Counterweight bolts (5/16"-18 x 1/2")
- Serviceable: Yes, resurfaceable with no additional parts required
- Recommended Use: Race use
- Part Number: 600412
Vehicle Applications:
- 1982 Ford Mustang GL
- 1982 Ford Mustang GLX
- 1982 Ford Mustang GT
- 1983 Ford Mustang GT
- 1984 Ford Mustang GT
- 1985 Ford Mustang GT
- 1986 Ford Mustang GT
- 1987 Ford Mustang GT
- 1988 Ford Mustang GT
- 1989 Ford Mustang GT
- 1990 Ford Mustang GT
- 1991 Ford Mustang GT
- 1992 Ford Mustang GT
- 1993 Ford Mustang GT
- 1994 Ford Mustang GT
- 1995 Ford Mustang GT
- 1984 Ford Mustang GT-350 20th Anniversary
- 1995 Ford Mustang GTS
- 1979 Ford Mustang Ghia
- 1970 Ford Mustang Grande
- 1971 Ford Mustang Grande
- 1972 Ford Mustang Grande
- 1973 Ford Mustang Grande
- 1982 Ford Mustang L
- 1984 Ford Mustang L
- 1984 Ford Mustang LX
- 1985 Ford Mustang LX
- 1986 Ford Mustang LX
- 1987 Ford Mustang LX
- 1988 Ford Mustang LX
- 1989 Ford Mustang LX
- 1990 Ford Mustang LX
- 1991 Ford Mustang LX
- 1992 Ford Mustang LX
- 1993 Ford Mustang LX
- 1970 Ford Mustang Mach 1
- 1971 Ford Mustang Mach 1
- 1972 Ford Mustang Mach 1
- 1973 Ford Mustang Mach 1
- 1993 Ford Mustang SVT Cobra
- 1994 Ford Mustang SVT Cobra
- 1995 Ford Mustang SVT Cobra
- 1993 Ford Mustang SVT Cobra R
Warning: This product can expose you to chemicals including carbon black, glass wool fibers, or silica (in clutch discs), chromium and nickel, which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov
FAQ
Is the XACT Prolite flywheel good for daily driving?
It can be driven on the street, but as ACT's lightest, lowest-inertia flywheel it is optimized for road and rally racing and carries somewhat reduced low-speed drivability compared to a heavier flywheel.
Does the 600412 include the counterweight hardware needed for installation?
Yes, counterweight bolts (5/16"-18 x 1/2") are included.
Can this flywheel be resurfaced?
Yes, it is fully serviceable and can be resurfaced without buying additional parts.
What Mustang years does the 600412 flywheel fit?
It covers a wide range of classic and Fox-body Mustang trims spanning 1970-1995, including GT, LX, Mach 1, Grande, Ghia, and SVT Cobra/Cobra R. See the Vehicle Applications list above to confirm the exact year and trim.