3/8" and 1/2" NPT. The holes are the right size, just run a tap through.

[IMG]http://frameupwheelworks.smugmug.com...0%282%29-M.jpg[/IMG]

Ahhh...Thanks for the clarification!!!

I like using the Gates Power Grip clamps

http://www.gates.com/products/automo...grip-sb-clamps

I believe they make them for Afco as mentioned earlier

Jeff

I was just watching You Tube tonight, Hot Rod Garage and they said never block the heater out lets it was big trouble, you should loop it if your not going to use it. I don't know I've never had an LS but figured I'd mention it. Anybody know for sure either way?

https://www.youtube.com/watch?
v=4UGlYx_Cjjo&list=PLGvTvFzdMg_PbG7_1TPiABMmItllqq Fbb

What is the logic behind that statement?


Presently every aftermarket AC system has a solenoid valve that closes of the water to the heater core when heater is turned off.

I think some believe that if the heater hose outlets are blocked off it won't allow all the air to be purged out of the cooling system when filling for thte first time. Thanks for the hose part numbers!