Yeah I'm just going to swap the whole magnum rotating assembly into the LA block. Plus, I already bought the rings and they weren't cheap. Does it matter what year bearings I use since the cranks interchange? Every listing I've seen lists pre-80, and 80-newer for rod/main bearings
1969 Nova 454/M21/3.31 Mild mid-11 second weekend cruiser
1994 F150 XLT Super Cab 2WD 5.0/4R70W/3.55 (Daily driver)