la block 771 hp N/a wins dyno challenge

mopar65 said

92 or 93 was the first year for the magnum engine and the Early blocks were drilled for LA heads. I would have to look it up to find out when the blocks were not drilled anymore

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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