http://roanoke.craigslist.org/cto/4562455799.html I'm really starting to like the style on these GM boxy wagons. This one looks really nice. I've got to get serious about getting a box. Which years/makes/engines are the most desirable? They all look pretty much the same, but I do like the wood delete versions like this.
When the box wagons first came out in '77, and through model year '79, you could get a number of different engines in them. Olds 307, Pontiac 301, Chevy 305 (?) and 350. You could even get the Olds 403 in some of the models. And, you could also get a 350 diesel. Beginning in '80, the engine options were severely limited, usually to either the Olds 307 or the Chevy 305. For engine choice, the Olds 403 would probably be my #1, followed by one of the gas 350's.....
My choice for these, given my druthers, is for the 403 if you are hauling, and the Buick 350 if you are not. Either way, great engines. The 305 and 307 are simply not enough engine if you are moving things and carrying much weight. They'll do it, but they won't be over happy, and a not too happy engine makes itself felt at the gas pumps.