quote:Originally posted by Daniel_Jones:
You have to be careful here. The weight of the rods and pistons
plus the type of balancing (internal or external) will determine what
the bobweight needs to be. When lightening a crank, it is not unusual
to upset the balance to where large amounts of expensive mallory metal
is required to re-balance the crank. I have a friend who had more in
the balance cost than in the cost of the billet crank. I beam rods are
lighter and will balance with less heavy mallory metal (a.k.a. tungsten)
slugs in the crank. A crank manufacturer can tell you the required
bobweight for their cranks. You could contact SCAT and see if they would
machine your 351C crank but it might end up cheaper to buy a Super Light.
Dan Jones
Hello Daniel; I'm going to be externally balancing the rotating assembly. I going to give the machinist the flywheel, crank, harmonic balancer, clutch & pressure plate, & let him balance as an assembled unit. Is this the correct approach?....Thanks, Mark