SFI 18.1 6.75″ Diameter Damper for LS Race Applications. This damper is fully engraved for setting timing and is also available with integrated flying magnet crank trigger system. The damper comes standard with Corvette length hub. Damper has a 6 bolt GM pulley pattern (6 on 3.2″) and a BBC register that will accept most aftermarket BBC crank mandrels and pulleys. An Innovators West crank mandrel is available separately (see Part #947)

• Diameter: 6.75″
• Weight: 7.7 lbs
• Comes with Single 3/16″ Keyway
• Exceeds SFI 18.1 standards and is marked on front with SFI Sticker, and on the rear with SFI number stamped into unit.
• NOTE: The Super Duty Blower Hub option is a thicker hub that provides greater resistance to hub cracking under high power supercharged applications (750 rwhp and greater). This option includes a new custom made timing cover seal to adapt the oversized hub to a stock timing cover.