Mopar R3 Block

Rat Bastid said
You should be able to spot the 59/48 LBA a mile away. The one doesn’t look anything like the other.

Not sure why you are worried about cam bearings. I don’t want to go back through the thread to see. But unless the block was machined for bigger than OE cam bearings it is what it is.

All the blocks have the same 10 bolt pattern, but some of the blocks have another 10 bolt holes in them. Any 10 bolt head will bolt on any block. Any 20 bolt head will bolt on any block, you just won’t use the upper and lower rows of bolts.

Thank you. I get that the valleys don't look alike. But can you show me which is which?

I'm surfing the net for the info but it's spotty. I only mentioned the cam bearing holes because the machine shop owner where it's at mentioned it had larger than stock cam bearing holes and the roller ones I was shown said racing only. I'm going to drive this all the time. will the roller bearings hold up to that kind of use?