I have a 65 with a 302 in it.I took it out the other weekend to put gas in it and when i got back home the tempurature gauge was at 230. It was about mid 80's to low 90's outside when i took it out, and i have the heatercore out because im about to replace it. Can anybody help me out?

 

Here's what you need.
1. 3 or 4 row radiator, or an aluminum radiator
2. 6 blade fan or an electric fan
3. Shroud
4. Recovery tank
5. Check the timing for factory specs which is 6 degrees BTDC

 

the only thing i dont have is a shroud. will that help out considerably?

 

Your thermostat might not be opening or your radiator might be clogged. I have the same thing going on in one of my cars. Overheating for seemingly no reason. While cool, take off the radiator cap, start the car and let it warm up to normal operating temperature. You should see coolant flowing when you look into the radiator. If nothing's flowing, your thermostat is not opening. If there's a little flow, your radiator is likely clogged.

Replacing the thermostat's pretty easy because it's right up front under the housing at the end of the upper radiator hose. If your radiator's clogged, pull it an have it gone through. Or if you're feeling like your wallet could use some lightening, get a new one: aluminum dissipates heat the best, but your car may not need that much help. If you frequently drive in 90 degree or higher weather, I do recommend an aluminum radiator, though.

(Oh, and if your water pump is ancient, I've seen it happen that the blades on it have corroded away, but that's rare since most people have changed theirs out a time or two by now. If it's leaking, it needs replacing anyway.) I'd stick with the thermostat/clogged radiator theories until proven false, then move to the less obvious or more expensive.

 

Fan shroud does make a difference!