Go to HybridZ.org, this is a very desirable motor to put in a Z car, it is the largest displacement small block Chevy motor made. There are quite a few 400SBC Hybridz's running around. to get close to that dispalcement lots of people build a 383 stroker motor from a 350 using the crank from your motor, but there is no replacement for displacement! This motor was my first choice for my own HybridZ but it is a rare to find one in good running condition that doesn't need a total rebuild. They were mostly made in the late 60's up to the mid eighties I think but look it up to be sure. I was going to go this route as I wanted old school carburator and SBC but ended up going with a Fuel injected 2nd generation LT1 350 SBC instead, I still may go with a 400 if the right deal comes along. too bad your all the way across the country in CA or I would make an offer on the 400. good luck, Greg