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post #1 of 2 (permalink) Old 01-17-2014, 08:53 PM Thread Starter
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Crankshaft Question

Hey Guys:
My RA III engine is in the shop and I'm faced with the question of regrinding the crank that was in it to 20/20 or going with a later model spare I have which is already ground to M20/R10. the regrind cost is $250. The hub sizes on the rear of the crank are the same. They both, by casting number, are nodular. I ended up into the motor for boring, line boring, valve guides, pistons, rings, bearings, cam, lifters, valve job, timing gears, oil pump & shaft, probably resizing the rods plus small stuff. I guess the $250 isn't too much to spend if there is any real advantage to keeping the original crank with it. What do you think?
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post #2 of 2 (permalink) Old 01-18-2014, 11:25 AM
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Up to you. No 'real' difference. Me, I would reuse the original crank, because I'm just that way. 'Born with' parts always seem to work a bit better for me. That said, these cranks are very beefy and can be cut .040" under with no issues to be concerned about.
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