Zips SBC Small Block Chevy V8 Water Pump Riser Kit

I bought three items: the Zip riser, Chevy 6 cylinder water pump and a shim kit. I had a Zip on a previous '32 roadster and it allowed me to raise the fan line about 5 inches, centering it in the radiator. I then used a flex fan and a shroud I made to make my 383 run cool in all weather. I like the idea of using a mechanical rather than an electric fan on an old school hot rod. I'm building a new '32 roadster and will use the Zip riser on it. I also like that the casting quality is good enough to clear coat to feature it, or paint it to subdue it. I like the built in alternator mount too. I'm not using AC so the AC mount won't be used. It's a good idea to drill a small bypass hole in the thermostat to let captured air escape. The Zip has a small screw at the top to bleed off captured air (a must). The screw is easy to drop and lose. A brass air bleed off valve is available from GM pt# 10070107. You will have to drill out the hole and tap it to 1/8""pipe thread.