Maybe we should all confess to screwing an engine up...

When I was 16 someone gave me a 66 dart on the condition I could break in the trunk and get his stuff out(he lost his keys), I pulled the back seat out and handed him his stuff and he handed me a title... the 273 had a nasty knock, tore the engine down had a spun rod bearing, new bearings were still loose so I stuck a flat hose clamp behind the top rod bearing and put it together, the supprising thing looking back is that it lasted 2000 miles includeing a trip from abilene tx to nashville tn, after I moved there it started knocking and it blew about 5000 RPM in 2nd gear one day and split the block in half up all 5 mains to the cam tunnel as well as various other obliterated parts.

Next engine I put together was a slant six for my moms full size van, I had a heart atack when I started it and it was knocking real loud, turned out I had not checked clearance to the oil pick up.