The old engine from my Impala. It's a lowly 283ci I think. It ran well enough, but blew smoke for a bit if I filled the oil level up to the top mark, I'm not sure what the means, but it ran really well enough at like half oil level. A rebuild kit including pistons is about £250 now I think anyway. It has starter, polished alternator, fuel pump, powersteering pump & a polished Edelbrock 1406 carb & polished air cleaner + polished rocker covers. £700 collected from Birmingham, or palleted to mainland UK most places is £60. {} {} {} {} {}
Being another 64 impala owner I've set up a facebook group for owners in the UK, you might have some luck on there. I'm a bit short at the minute but if it's getting in the way I'll take the shiny bits off you for my 283, thanks. Do a search on FB for UK Chevy Impalas/Belairs etc.