Zero balance for internally balanced engines. Billet steel is SFI 1.1 rated. Fits 11, 11.5 and 12 Long style pressure plate. Reciprocating assembly should be balanced or checked for proper balance. 10.5 Long style plates use 5/16 mounting bolts and 11 Long style plates use 5/16 or 3/8 mounting bolts, Diaphragm plates use Metric 8mm bolts.
The flywheel is the foundation of the clutch system, and because it is an energy storage device, also determines the amount of power available to launch the car. A heavy flywheel stores more energy as it spins than a light flywheel. If your engine and gearing combination requires more power or inertia to make the car launch without bogging the motor, you will want a heavier flywheel. Keep in mind, though, that a heavier flywheel will be slower to accelerate through the gears. A lighter flywheel creates less inertia at launch, but will accelerate quicker through the gears. In order to effectively use a lighter flywheel, you must consider the car weight, operating RPM of the engine, and most importantly, the gearing. Too little gear will cause the engine to nose over or bog on launch. RAM billet steel flywheels are recommended as a replacement for factory cast flywheels in high performance and racing vehicles. Cast flywheels are not explosion proof and can be dangerous when used in high performance applications at higher RPMs. RAM billet steel flywheels are CNC machined from certified materials and exceed SFI specifications. After machining, the flywheels are Blanchard ground parallel to the crankshaft mounting surface ensuring minimum runout and the optimum mating surface for the clutch disc. Use steel flywheels in heavier drag race cars or for the best drivability in street driven vehicles.
See 6379-1, 6379-1AK, T-6379-2A for crankshaft mounting hardware options. See 7563-1AK, 7563-1BK, F-7563-1K, F_7563-2K, M-7563-6FRK for pressure plate mounting options.
Ford Mustang and Shelby Years:
1967 (67), 1968 (68), 1969 (69), 1970 (70)
Above years shown are used for searches and are not application listings.
Mercury Cougar Years:
1967 (67), 1968 (68), 1969 (69), 1970 (70)
Above years shown are used for searches and are not application listings.
Ford Fairlane and Ranchero Years:
1966 (66), 1967 (67), 1968 (68), 1969 (69)
Above years shown are used for searches and are not application listings.
Ford Torino and Ranchero Years:
1968 (68), 1969 (69)
Above years shown are used for searches and are not application listings.
NPD Part Number : 6375-15B Manufacturer Reference #'s: RAM 1519, C5AZ-6375-K, C5AZ-6375-L
1967-1970 MUSTANG 390, 428, M/T, INTERNALLY BALANCED ENGINES ONLY WHICH EXCLUDES 428 CJ AND 428 SCJ
1967-1970 COUGAR 390, 428, M/T, INTERNALLY BALANCED ENGINES ONLY WHICH EXCLUDES 428 CJ AND 428 SCJ
1968-1969 TORINO 390, 428, M/T, INTERNALLY BALANCED ENGINES ONLY WHICH EXCLUDES 428 CJ AND 428 SCJ
1966-1969 FAIRLANE 390, 428, M/T, INTERNALLY BALANCED ENGINES ONLY WHICH EXCLUDES 428 CJ AND 428 SCJ
WARNING: This product can expose you to chemicals including lead and DEHP, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
In Stock!
