89 360 vs 71 360

YR, I dont have a magnum block, nor am I looking to obtain a magnum block. Basically is the first year of the 360 (71 if Im not mistaken) which I own OR obtain one of the final years of the Non magnum 360 (89-92 if Im not mistaken) from this donor.

Your roller donor is effectively a magnum block with an oil hole that feeds LA style heads.