From stock replacement to professional-level racing, all Quarter Master® clutches are built with premium internal friction material for high torque capacity and engineered to reduce moment of inertia for lightweight power transfer. With service kits and replacement friction discs available, a Quarter Master® clutch is a race-winning investment.
engineered technology
From stock replacement to professional-level racing, all Quarter Master® clutches are built with premium internal friction material for high torque capacity and engineered to reduce moment of inertia for lightweight power transfer. With service kits and replacement friction discs available, a Quarter Master® clutch is a race-winning investment.
From stock replacement to professional-level racing, all Quarter Master® clutches are built with premium internal friction material for high torque capacity and engineered to reduce moment of inertia for lightweight power transfer. With service kits and replacement friction discs available, a Quarter Master® clutch is a race-winning investment. From stock replacement to professional-level racing, all Quarter Master® clutches are built with premium internal friction material for high torque capacity and engineered to reduce moment of inertia for lightweight power transfer. With service kits and replacement friction discs available, a Quarter Master® clutch is a race-winning investment.
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Early Chevy - 2 Disc 1-1/8 x 10 - 4.5" Pro-Series Clutch Unit
Early Chevy - 2 Disc 1-5/32 x 26 - 4.5" V-Drive Clutch Unit
Early Chevy - 2 Disc 1-1/8 x 10 - 5.5" Optimum-V Clutch and Button Unit
Early Chevy - 2 Disc 1-1/8 x 10 - 4.5" Pro-Series Clutch Unit
Early Chevy - 2 Disc 1-5/32 x 26 - 4.5" V-Drive Clutch Unit
Early Chevy - 2 Disc 1-1/8 x 10 - 5.5" Optimum-V Clutch and Button Unit
specifications
Pro-Series
- Available with steel or aluminum covers
- Great for road racing, speedway & short track
- Low MOI; weighs just 12 lbs, for 2-disc or 13.5 lbs. for 3-disc
V-Drive Clutches
- 8-leg open cover design offers strength & effective heat dissipation
- Perfect for sportsman circle track, road course and off-road racers
- Delivers ideal balance of light weight, proven durability and value
- Premium internal friction material for high torque capacity
- Racer rebuildable frictions and floaters provide long service life
Optimum-V
- 6-leg design with gas slots for maximum cooling
- Extremely light for quicker starts & deeper braking
- Bronze sintered metallic frictions resist wear & heat
- Integrated wear pins hold clearances for longer cover life
- Racer rebuildable internals & one-piece aluminum cover
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Optimum-SR 10.4" Two-Disc LS Clutch For Corvette ZR1 LS9 (C6)
$2,312.50Optimum-SR 10.4" Two-Disc LS Clutch For Corvette ZR1 LS9 (C6) Learn More -
Optimum-SR 10.4" Two-Disc LS Clutch For '97 - '04 Corvette C5
$2,312.50Optimum-SR 10.4" Two-Disc LS Clutch For '97 - '04 Corvette C5 Learn More -
7.25" 2004-2011 Subaru WRX STI 8-Leg Billet Clutch (Race Clutch)
$2,306.37Drawing on an extensive race-winning heritage, Quarter Master has developed two all new 7.25" 2004-2011 Subaru WRX STI 8-Leg Clutches that perform well in a broad range of street performance and racing platforms. Learn More -
7.25" 2004-2011 Subaru WRX STI 8-Leg Billet Clutch (Street Performance Clutch)
$2,306.377.25" 2004-2011 Subaru WRX STI 8-Leg Billet Clutch (Street Performance Clutch) Learn More -
5.5" V-Drive Clutch Complete Service Kit - 2-Disc, 1-1/8 x 10-Spline
$336.005.5" V-Drive Clutch Complete Service Kit - 2-Disc, 1-1/8 x 10-Spline Learn More -
Optimum-SR 10.4" Two-Disc LS Clutch For Camaro, Corvette, Pontiac G8/GXP, & Cadillac CTS-V
$2,312.50Optimum-SR 10.4" Two-Disc LS Clutch For Camaro, Corvette, Pontiac G8/GXP, & Cadillac CTS-V Learn More -
Dodge - 3 Disc 1-1/8 x 10 - 7.25" Optimum-V Clutch and Button Unit
$1,148.003 Disc 1-1/8 x 10 7.25" Optimum-V Clutch Assembly with Button Flywheel Dodge Learn More -
Dodge - 2 Disc 1-5/32 x26 - 7.25" Optimum-V Clutch and Button Unit
$948.002 Disc 1-5/32 x 26 7.25" Optimum-V Clutch Assembly with Button Flywheel Dodge Learn More -
Dodge - 2 Disc 1-1/8 x 10 - 7.25" Optimum-V Clutch and Button Unit
$948.002 Disc 1-1/8 X 10 7.25" Optimum-V Clutch Assembly with Button Flywheel Dodge Learn More -
Ford - 3 Disc 1-5/32 x 10 - 7.25" Optimum-V Clutch and Button Unit
$1,613.003 Disc 1-5/32 x 26 7.25" Optimum-V Clutch Assembly with Button Flywheel Ford Learn More
