[cruiser_guy]

Originally Posted by joshoisasleep

Yeah but I think if I recall correctly that because my engine's an 81 my rad hose comes out from the other side (to the left looking at the truck) and I'd have to change my t-stat housing to put a newer rad on?? (At least a landcruiser one)

In any case I should flush the coolant I guess and replace it. Is there any special tricks or advice to cleaning out the cooling system? All my stuff is old and was never "restored" during the engine swap like most people do.

Is your rad the original 3 core rad or is it a 4 core from an FJ62? You can tell by removing the rad cap and counting the cores you can see. Alternatively, a 4 core rad fills the space on the tanks and a three core rad has a little room left on the rear edge of the tanks.

If you have a 3 core you should upgrade to a 4 core or have yours recored to a 4 core. The 3 core is not sufficient if you have A/C and when you add more to it it gets even worse.