Hmmm? I'm in the process of doing the same thing with a 5.2 magnum motor. My balancer ( 7 1/4" diameter ) doesn't hit my cover tab. Same timing cover as you have - I think. The 5.2 Magnum is an internal balanced motor. Not sure on your 5.9? Assume you are replacing a LA with a Magnum motor? I am replacing a /6 ( which had A/C and PS ) with a 5.2 and running in to lots of other issues that you may or may not run in to. Also changing over to the later style A/C compressor, which involves modifying the rear A/C mount ( pic ) so it will work with the Magnum style intake bolt pattern. Other issues I am having are the P/S pump and the alternator mounting. Going with a GM alternator. I should end up with a 2 V belt system. One to run the water pump and alternator and one to run the A/C and P/S pump - if I ever get the right brackets and pulleys. John
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