Swapping a small block to big block...who's done it?

Any stroker is fine on the street. They last as well as anything else, to a point. Too much arm can lead to side loading and premature wear, but that's not the case in any 4.15 big block, or 4" small blocks. (BTW, the 340's larger bore cuts this down further) Any year 360 is good, but the best ones are '71-'72, as they share the 340s casting cores, but only use the 4" bore, so the walls are thicker. the 450" Speedomotive is selling is a 3.75 440 crank in that 400 block. A very good budget engine, but a .060 over 440 comes to the same size. The 400 makes it narrower, and lighter, and headers in an A body (underchassis especially) will fit better, unless you use certain heads(edelbrocks, and Indy SRs are 2) because they have slightly raised exh ports. If you are going to stroke a 340 or 360, you want to limit the overbore to .040 or less. You will notice the BB up front, unless you build for it. There is no way around it, but it is quite the conversation peice. Around here, there are a bunch now. Only a few A engine strokers, and I'll take a small block stroker A over a BB A for the street any day.