273 crankshaft, 5.2 Magnum

nm9stheham said
Balancing is going to cost 2-3 times grinding a crank. If you are not racing, then changing pistons to oversize does not necessitate a re-balance. So haw hard are you going to be running this engine?

Just be aware: Since both the 273 and 5.2 are 'internal balance' engines, there is no need to balance the crank with the external parts. Each of those external parts are individually balanced.

$125-$150 as a guess on the regrind.
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Oh I disagree. The 273, 318, 340, and Magnum cranks will all interchange, they are not all within balance of each other. Each crank has different counterweights for their respective rod and piston weight. Otherwise all the cranks would be identical and have the same casting and part numbers.