BE CAREFUL HERE. That is sloppy "recent" paint. Do you KNOW that the engine ran and oiled OK? ----Possibilities---
1..LA block, LA heads
2..LA block converted to use Mag heads WE KNOW NOT because you have shaft rockers
3..Mag block with LA heads---WILL NOT OIL the shaft rockers because mag blocks don't have the block oil passage
4..Very late "roller block" LA block with some sort of LA or original heads. these were built a few years, used factory TBI injection, used factory roller cams just like magnum, but had the block oil hole and used LA style shaft rockers. Look for the roller lifter "spider" retainers and block bolt holes down in the valley. That might explain the "both" motor mounts
