Page 635 - 2022-23 Auto Performance Drag Racing

Concept 10.5" Dual Disc Clutches
DRAG RACING
Competition Pressure Plates
Ram pressure plates are built with explosion-resistant pressure rings and are SFI approved to withstand the rigors of heavy-duty street or strip use.
The Concept 10.5" combines the
best features of the Force 10.5
and Pro Street dual-disc clutches.
The 10.5" pressure plate offers
2,400 lbs. of clamping pressure,
yet maintains a stock pedal
effort and offers a quiet, no-rattle operation due to the strap driven floater plate system. Applications listed utilize 300-se- ries organic clutches that are suitable for applications with up to 750 horsepower.
Part No.
Description Size
Bolt Circle
Static Pressure
RAM401
GM Diaphragm
10.5"
11.625"
3,000 lbs.
RAM402
GM Diaphragm
11"
12.625"
3,000 lbs.
RAM403
Borg & Beck
10.5"
11.625"
2,800 lbs.
RAM423
Borg & Beck
10.5"
11.625"
3,200 lbs.
RAM404
Borg & Beck
11"
12.625"
2,800 lbs.
RAM414
Borg & Beck
11"
12.625"
3,200 lbs.
Part No.
Application
300 Series Street/Strip Clutch Discs
RAM50-2120
GM 1-1/8", 10-Spline, 166/168T Flywheel NEW!
RAM50-2125
GM 1-1/8", 26-Spline, 168T Flywheel
RAM50-2127
GM 1-1/8", 26-Spline, 153T Flywheel
RAM50-2220
Ford 1-1/8", 26-Spline, 164T/184T Flywheel
RAM50-2230
Ford Mustang, 2011-2020 Coyote, 1", 23-Spline NEW!
RAM50-2257
Ford 1-1/16", 10-Spline, 157T Flywheel
RAM50-2259
Ford 1-1/8", 26-Spline, 157T Flywheel
RAM50-2300
Chrysler 1", 23-Spline, 130T Flywheel
RAM50-2305
Chrysler 1-1/8", 26-Spline, 130T Flywheel
RAM50-2355
Chrysler 1-1/8", 26-Spline, 143T Flywheel
RAM50-2370
Dodge Challenger, 2008-20, 1-1/8", 26-Spline NEW!
RAM50-2370N*
Dodge Challenger, 2008-20, 1-1/8", 26-Spline NEW!
RAM301M
10.5" x 1-1/8"-10
RAM309M
10.5" x 1-5/32"-26
RAM310M
11" x 1-5/32"-26
*Suitable for applications with up to 950 horsepower, kit includes a 900 series sprung top disc and solid center bottom disc for added durability.
Powergrip Street/Strip Clutch Sets
A unique blend of friction materials in-
crease clamping power for crisp clutch en-
gagement and release. Powergrip Clutches
increase holding power by 80%. Powergrip
HD sets add up to 120% more clamping
force with minimal effect on driveability. Each set includes clutch disc, pressure plate, and throwout bearing.
Part No. Description
* Use with a billet steel flywheel for best results.
10.5" Single Sintered Iron Clutch Disc Systems
Suited to applications with up to 1,000
horsepower, single iron disc assemblies are
a cost-effective clutch system for bracket,
Stock Eliminator, and fastest street car
classes. Systems use 5135 (hard) compound
sintered iron discs which allow the clutch to
“slip”, preventing the car from overpowering
the tires. Pressure plates are based on the 11" Long style, use a nodular iron pressure ring, and feature significantly lower static pressure.
Part No. Description
Street/strip discs have smooth engage- ment, outstanding performance, and long life. Each clutch features steel backed facings and the patented Ram poly-coil hub design.
Part No. Description
6000 Series Competition Clutch Discs
6000-series discs offer quick, clean shift- ing and long life for competition vehicles. Expect clutch chatter when using these discs on the street.
Part No. Description Hydraulic Throwout Bearings
RAM6129
10.5" x 1-5/32"-26
RAM6130
11" x 1-5/32"-26
Powergrip Clutch Sets
RAM98730
1982-92 Camaro/Firebird, 10.5" Clutch
RAM98762
1966-72 Chevelle 350/396/402; 1966-70 Corvette 350/427, 11" Clutch
RAM98764
1967-81 Camaro 305/350/396/400;
1970-74 Chevelle 350/454; 1970-81 Corvette 350/454; 1973-79 Pontiac Firebird 400/455, 4-Speed
RAM98794T
1986-95 Ford Mustang 5.0L (302), TKO Trans.
RAM98931
1997-04 Corvette; 1998-02 Camaro/Firebird, 11" Clutch, 26-Spline
Powergrip HD Clutch Set
RAM98794HD*
1986-95 Ford Mustang 5.0L (302), Except TKO Trans.
Bearings offer full adjustability and easy set-up with single or dual-disc aftermarket clutches.
Part No. Description
*Bearing retainer collar diameter must be machined to 1.370".
RAM78136*
Ford Tremec TKO/500/600 and Top Loader
RAM78137
GM T5
RAM78183
Dodge 5.7/6.1L, Tremec 6060
Throwout Bearings Part No.
Description
RAM485
Early Ford, Clip Style, 1-1/16"-10
RAM486
Early Ford, Clip Style, 1-3/8"-10
RAM488
Early GM, Short
RAM489
GM, for Use with Long Style Clutch
RAM1358
Clutch Disc, 1-3/16"-18 Spline
RAM1361
Clutch Disc, 1-3/8"-10 Spline
Related Components
RAM492
Pressure Plate Stud Set, Required
RAM550
Pressure Plate Shim Set, Required
633
2022-23