This bolt & washer kit provides you with the strongest and most reliable way of securing your bottom blower pulley to your crank hub flange. It is recommended when using the bolts & washer supplied to you, do not use any additional washers, and to check for clearance between the end of the bolt & your gear drive. Also use a quality thread lubricant & torque bolt to 55' lbs. recheck torque frequently. The NAS bolts & steel washer can be purchased separately using PN# SFC-MS12PTSPL (bolts) PN# GSM-6XBFW (washer)
*All items must currently be purchased through the shop at Norm Grimes Racing.
This is to ensure availability and confirm part compatibility. Please contact us at
818-504-9181 (Main) or 805-501-1810
(Cell) during normal business hours to speak to a sales representative.
- Mon-Fri 8:00 am – 5:00 pm
- Sat by appointment
- Sun closed