11 inch or 10 1/2 inch flywheels , 1965,66,68,71 350,396,402,427,454 #3789733 x 2 L/16/8 -L-8-6 , #3729004 x 2 B-25-1 -H-18-8 ,#37237?? K-23-5 , # A-18-1 , #Hayes 48 pound racing flywheel ,all need cleaning and may need resurfacing, been on self for years , used back in the day ((( VERY HEAVY )))