la block 771 hp N/a wins dyno challenge

Ceedawg said
I have a 95 5.9 engine (together) and can't remember the holes being drilled, also have a bare block I'll see if holes are there, I'll check what year also. First one had the balancer with the separate pully, second the one piece, so it'll be newer. Both have early side mounts

Here is the link that shows the block mods that were done to the early 360 magnum block.

LA Family: Valley Performance and Machine Service builds a 7,500-rpm Small-Block - Hot Rod Network

I too didn’t know the early magnums were drilled for la rocker arms. Untill I read it on here I think.