RAM PROFESSIONAL DRAG RACING CLUTCHES
RAM Pro Billet clutches are engineered to provide the ultimate in clutch control. RAM
Pro Billet clutches feature unique lever designs that allow for complete control of the centrifugal loading feature of the clutch. We design these levers using solid modeling that enables us to accurately predict the performance of the counterweight function throughout the entire RPM range. Units are available in single, dual, and triple disc versions utilizing either 5135 or 5191 compound clutch material. For your convenience, we provide a selection listing below that will help you decide which diameter unit is best suited for your application. You may contact us directly for additional recommendations via our E-Tech form or calling 803.788.6034.
Every RAM Professional billet clutch is custom built for your application based on the specifications of your car.
When ordering, please be prepared to provide the following information: Engine, crank flange, balance, ring gear tooth count, bellhousing, transmission, gear ratios, spline, tire size, rear gear, vehicle weight, and any power adders. Production times vary depending on the season, and one-off configurations may require a sample flywheel and engineering fee. All RAM billet units require a bellhousing depth of 8 1/8 inches or more.
Basics of RAM Billet Drag Racing clutch systems

6.25 INCH PRO BILLET CLUTCH
Use: NHRA Pro Stock, Comp Eliminator
Weight: 19-22 lbs.
Pressure: 0-1080 lbs.
Upgrade Options: 3 disc, titanium cover, pressure ring
Splines: 1 3/8-10, 1 3/16-18, 1 1/8-26

7 INCH PRO BILLET CLUTCH
Use: NHRA Pro Stock, Comp Eliminator, Sport Compact RWD
Weight: 25-31 lbs.
Pressure: 0-1440 lbs.
Upgrade Options: 2 or 3 disc, bronze floaters, titanium cover, pressure ring
Splines: 1 3/8-10, 1 3/16-18, 1 1/8-26

8 INCH PRO BILLET CLUTCH
Use: Top Sportsman, Comp Eliminator, Super Stock, Sport Compact RWD, Drag & Drive, 10.5 tire classes
Weight: 26-44 lbs.
Pressure: 0-1440 lbs.
Upgrade Options: 1, 2 or 3 disc, bronze floaters
Splines: 1 3/8-10, 1 3/16-18, 1 1/8-26

10 INCH PRO BILLET CLUTCH
Use: Mountain Motor Pro Stock, Nitrous Pro Mod, Top Sportsman, Drag & Drive, 10.5 tire classes
Weight: 34-60 lbs.
Pressure: 420 base, 690 base, 900 base
Upgrade Options: 1, 2 or 3 disc, bronze floaters, titanium pressure ring
Splines: 1 3/8-10, 1 3/16-18, 1 1/8-26