I will say this, when i was looking for a 360 to build, most everyone said go Magnum, so i found one, then after purchasing it & wanting ideas, most said i should have built an LA, then as you will find out, ALL those magnum heads WILL be cranked, didn't find out this info untill after i made my purchase, not knocking anyone, i'm happy i got it, i do like the fact it has higher compression & a lighter rotating assembly, so thats a plus, but the heads are PURE JUNK, not that they don't flow better, but i will not build (or assemble) an engine with cracked heads period, i don't care if they don't leak, so i threw them away, bought some RHSs from Hughes for 875.00, so plan on another set of heads. Someone did a build on a 300hp 360 magnum, left the lower end stock (the 300hp 360 magnum "crate" has the same components as the production 360 magnum), they installed a cam, eddy heads, & intake/carb/ignition/headers, it made 458 HP, forgot what the torque was, but still, pretty impressive.

Mine should be around 375 HP with a .500 lift cam & RHS heads with the stock bottom end.