I just measured a 250 and a 216 which were sitting in my shop. They are both 31 inches long from the front of the crankshaft pulley to the rear block face where the bellhousing bolts on.

A 235 and a 292 should have similar lengths, but the 292 will be taller than a 250. It's probably close to the same height as a 235. I don't have a 292 handy to measure!
Jerry


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