Quote:
Originally Posted by bigblockv6
One thing to note, do not use main bearing sets for 1973-74 478 engines those have much larger diameter main journals. 
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Don't forget to be sure if your crankshaft has been turned down, if so how much to get over-size bearings to compensate.
I've kinda' faded back in the shadows on my tinker toys, so out of the loop pretty much on current sources----if any are left.