smokey, I used a Vintage Air system on my 46 with a 1961 261 ci motor. You will have it much easier as they offer a super kit for your 52 that eliminates much of the hassle. I'll attach a link to my photos of AC job.

http://rides.webshots.com/album/572990479GSNMms


It's easier to get forgiveness than permission!
1946 1/2-Ton Chevy
1953 Chevy 3/4-ton Factory Stakebed