572 oil system with A body Hemi K frame & mounts

604B1duster said

Probably Bryant Racing, never heard of a factory production block going 4.5, might be a one of a kind

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It’s definitely a Bryant crank. Most of those don’t have a flywheel locating register or converter hub on the rear. The largest bore I’ve seen on a factory block was 4.400 but it wasn’t a high hp engine or a stroker.