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Rustyfender

I am wondering if someone has info on a vibration problem I am having. Have a 57 Olds J-2 engine in a 50 Olds coupe. Am using the original 50 hydramatic trans and flywheel/torque converter. I now understand that up to 1956 the engines were internally balanced and after were balanced externally. Soooo, how to remedy this problem. I have thought about going back to the old 303, which is a good engine anyway.

Thanks

Steve E.

The Jetaway equipped engines had part/all of the crankshaft balance as a bobweight cast/forged as part of the flywheel. If you can find a shop willing to take on this job you can solve your vibration problem.

d2_willys

You will need to have the flywheel (FROM 303) counterbalanced to the J2 engine crankshaft. I had it done years ago on a 60 371 engine and no problems.

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