I can't speak for GMC's, but I just had my '54 chevy 235 rebuilt - short block for $900 total and that included cleaning, grinding the crank, boring out to .060, new cam bearings installed, and assembly of the crank and pistons. The labor came to $420 and this was at the local CarQuest - the guy's been doing it for years, but they no longer do warranties. The parts came from Northern Auto parts (online)for a complete kit including all new parts - pistons, rings, new camshaft, oil pump, timing gears, lifters, all the gaskets and bearings was $449. I'm not trying to advertise here, but I can tell you I shopped alot and looked on Ebay as well and most places, NAPA, etc wanted $1000 or close to it for the '54 part kit. I found out about Northern on this site. One thing though, their kit doesn't have the right mains (dowelled) for a '53-55, but you can get them from Kanters for $40 and just have Northern credit you for their bearings.
I know this doesn't help for a 228, but it might help somebody else. (Saving $500 or so makes a wife happy or at least less mad
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