SPEC Billet Steel Flywheel for 1965-1995 5.0L Mustangs and Small Block 157 Tooth Mustangs.SPEC flywheels are CNC manufactured at an unheard-of .001 tolerance. This precision manufacturing process ensures perfect balance and a perfectly flat bedding surface for the clutch disc, both of which also contribute to the ultimate in safety for competitive environments. All SPEC flywheels carry SFI certification. Provides a consistent and friction enhancing surface for the clutch disc. Also aids in proper inertia, which is determined by the flywheel weight.
To allow for specific inertia needs, SPEC flywheels are made in high carbon billet steel. Most steel SPEC units are able to be rebuilt and feature a replaceable steel friction plate that is made from a friction- enhancing steel metal specially formulated for optimum clutch bedding and holding power. The steel materials provide a medium weight option for all types of racing.
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