ISO two fly wheels MK4 454 external for rear mount starters
 

1. ISO of a pair of flywheels rear mount starter (trs SSM) style. Mark 4 454's external balanced.
2. Also need tail pipes for transmission style trs, SSM set up with CMI etop headers.
3. Blower pulleys (two sets) B@M 420's for 6-8 lbs of boost.

Just have them pressed the starter ring to the back side of the flywheel and use the current ones you have