Page 558 - 2018 Racecar Engineering Drag Racing Parts and Accessories Catalog

900 Series Competition Pressure Plates
Street/Strip Clutches Ram pressure plates are built with explosion
Clutches have the ultimate reliability for up resistant pressure rings and are SFI approved
to 500 horsepower. Sintered iron friction mate- to withstand the rigors of heavy duty street or
rial provides a smooth engagement, but allows strip use.
some “slip” off of the starting line for optimum Part No. Description Size Bolt Circle Static Pressure
launch. Clutches must be used with a Ram RAM401 GM Diaphragm 10.5" 11.625" 3,000 Lbs.
flywheel or accelerated disc wear will occur. RAM402 GM Diaphragm 11" 12.625" 3,000 Lbs.
RAM403 Borg & Beck 10.5" 11.625" 2,800 Lbs.
Part No. Description RAM423 Borg & Beck 10.5" 11.625" 3,200 Lbs.
Clutch Discs RAM404 Borg & Beck 11" 12.625" 2,800 Lbs.
RAM910 11" x 1-5/32"-26, “TKO” Transmission RAM414 Borg & Beck 11" 12.625" 3,200 Lbs.
RAM405* Long Style 10.5" 11.375" 2,600 Lbs.
Powergrip Street/Strip Clutch Sets RAM436 Long Style 11" 12.375" 2,400 Lbs.
12.375"
11"
Long Style
2,800 Lbs.
RAM437
A unique blend of friction * Pressure plate with 5/16" mounting holes. All others are 3/8".
materials increase clamp-
ing power for crisp clutch 300 Series Street/Strip Clutch Discs
engagement and release.
Powergrip Clutches increase Street/strip discs have smooth engagement,
holding power by 80%. outstanding performance, and long life. Each
Powergrip HD sets add up to clutch features steel backed facings and the
120% more clamping force patented Ram poly-coil hub design.
with minimal effect on driveability. Each set includes clutch disc, Part No. Description
pressure plate and throwout bearing. RAM301M 10.5" x 1-1/8"-10
RAM305M 10.5" x 1-1/16"-10
Part No. Description RAM309M 10.5" x 1-5/32"-26
Powergrip Clutch Sets RAM302M 11" x 1-1/8"-10
RAM98730 1982-92 Camaro/Firebird, 10.5" Clutch RAM310M 11" x 1-5/32"-26
1966-72 Chevelle 350/396/402;
RAM98762
1966-70 Corvette 350/427, 11" Clutch 6000 Series Competition Clutch Discs
1967-81 Camaro 305/350/396/400;
RAM98764 1970-74 Chevelle 350/454; 1970-81 Corvette 350/454; 1973-79 6000 Series discs offer quick, clean shifting
Pontiac Firebird 400/455, 4-Speed and long life for competition vehicles. Expect
1966-78 Dodge Charger/Challenger 318/340; clutch chatter when using these discs on the
RAM98766
1965-75 Plymouth Barracuda/Belvedere/Duster 273/318/340 street.
RAM98794T 1986-95 Ford Mustang 5.0L (302), TKO Trans. Part No. Description
RAM98931 1997-04 Corvette; 1998-02 Camaro/Firebird, 11" Clutch, 26-Spline RAM6121 10.5" x 1-1/8"-10
Powergrip HD Clutch Set RAM6129 10.5" x 1-5/32"-26
RAM98794HD* 1986-95 Ford Mustang 5.0L (302), Except TKO Trans. RAM6128 11" x 1-3/16"-18
* Use with a billet steel flywheel for best results. RAM6130 11" x 1-5/32"-26
10.5" Single Sintered Iron Billet Steel And Aluminum Flywheels
Clutch Disc Systems Flywheels are CNC-machined from certified
Suited to applications with up to 1,000 horse- metals that exceed SFI specifications. Flywheel
power, single iron disc assemblies are a cost friction surfaces are ground parallel to the crank
effective clutch system for bracket, Stock Elimi- flange for minimal runout. Factory balanced for
nator and fastest street car classes. Systems bolt-in use.
use 5135 (hard) compound sintered iron discs, which allow the
Description
Part No.
clutch to “slip”, preventing the car from overpowering the tires. Billet Steel Flywheels Balance Ring Gear Weight
Pressure plates are based upon the 11" Long style, use a nodular RAM1501 Chevrolet V8 Internal 168 33 Lbs.
iron pressure ring and feature significantly lower static pressure. RAM1510 Chevrolet V8 Internal 153 15.5 Lbs.
Part No. Description RAM1511 Chevrolet V8 Internal 153 26 Lbs.
RAM471 Pressure Plate, 800 lbs., Big Block Applications RAM1550 GM LS1 Internal 168 26 Lbs.
RAM1358 Clutch Disc, 1-3/16"-18 Spline RAM1521 Chevrolet 454 External 168 33 Lbs.
RAM1361 Clutch Disc, 1-3/8"-10 Spline RAM1523 Chevrolet 400 V8 External 168 33 Lbs.
RAM1363 Clutch Disc, 1-1/8"-26 Spline RAM1503 Chrysler 6-Bolt Internal 130 28 Lbs.
Related Components RAM1583 Chrysler 8-Bolt Internal 130 28 Lbs.
RAM492 Pressure Plate Stud Set, Required RAM1593 Chrysler 8-Bolt Internal 143 30 Lbs.
RAM550 Pressure Plate Shim Set, Required RAM1527 Early SB Ford External (28 oz.) 157 24 Lbs.
RAM1507 Early SB Ford Internal 164 33 Lbs.
RAM1505 Early SB Ford External (28 oz.) 164 33 Lbs.
Throwout Bearings RAM1519 Early BB Ford Internal 184 35 Lbs.
Part No. Description RAM1545 Ford 4.6/5.0L 8-Bolt, Internal 164 26 Lbs.
RAM485 Early Ford, Clip Style, 1-1/16"-10 1996-07
RAM486 Early Ford, Clip Style, 1-3/8"-10 Billet Aluminum Flywheels
RAM488 Early GM, Short RAM2501 Chevrolet V8 Internal 168 18 Lbs.
RAM489 GM, For Use With Long Style Clutch RAM2550 Chevrolet LS1, Internal 168 18 Lbs.
RAM501 Late Ford, Short, For Use With Diaphragm Style Clutch 1998-02 F-Body
RAM2529 Early SB Ford Internal 157 14 Lbs.
RAM2515 Early SB Ford External (28 oz.) 164 18 Lbs.

556