part number for main bearing

i'm looking for the part number and who may have them. i need the wide flange for the 75 to 79 440 block. i'm tossed between the 3/4 grove and the narrow full grove. there going in a 528ci. 4.150 x 4.500 bore that will be used mostly for drag racing. also do people mix rod bearing halfs to get .0005 incriments? thanks

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also do people mix rod bearing halfs to get .0005 incriments? thanks

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Yes. I used King bearings and had to buy two sets to mix and match. I will use the other half at the next freshen up. If you use Clevites, you can buy just what you need.
Brian