[b-man]

Kinda worthless with the original caps missing.

Had the almost same thing happen with a 455 block I bought that supposedly was 4-bolt main, before I knew anything about block codes. It had 4-bolt caps alright but they weren’t original to the block, turned out to be a 2-bolt block with 4-bolt caps slapped on it.

Shop couldn’t handle the job right and ended up with a nightmare that I won’t get into here, and the #1 & 5 caps were still original.

Blocks missing the caps especially all 5 are pretty much worthless at least to me and plenty of other people. A nice 2-bolt 400 block with the original caps still intact is worth building up to around 600 hp, one without any caps is pretty much just scrap iron.

It’s junk, I think your shop knows their stuff. If it was the last 400 block in existence it might be worth doing something with…..but it’s not.