The CB527 sereis bearings are for the standard BB Mopar rod journals, 2.375 diameter. The HD are narrower, and have a chamfer on the crank side ,than the standard rod bearings are OP, your crank rod journals must be ground on the large size of the specs, usually when I used the HD bearings I ended up with .003 to .0038 clearances thats using a inside mike to get the diameter and then using the outside mike to see what size it was on the inside of the bearing. I now have several dial bore gauges and they are easier to see the clearances once you get them set up, modern technology
Yep, I see that now. I missed the number when I read the post
The HD are narrower, and have a chamfer on the crank side ,than the standard rod bearings are 
OP, your crank rod journals must be ground on the large size of the specs, usually when I used the HD bearings I ended up with .003 to .0038 clearances 
