BAD MECHANICS - Thermostat and Radiator Fan Blade

soonercruiser said

Not that it will be "perfect" yet, but all the necessary parts delivered today...16" Flexfan and custom Thermostat housing.
I can fix the small stuff myself.

Would still be searching for a location for the temp sensor on the 318 block, lower; or even something like the lower rad hose.
Any other ideas?

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As far as temp sensor location. Others have already posted photos of the proper adapter. If your intake has no other ports, then I'd use the suggested adapter. No other location makes any sense.

An aftermarket temp sensor would also be low priority for me versus a proper thermostat. So if time is a consideration, just plop the temp sensor down on top of the intake without putting it in any port. You might be surprised how close it reads.. I ran my efi that way for a couple weeks without issue (I needed to make a pipe thread adapter).

It's also not often difficult to find a good used radiator that will bolt in and mount up properly. I would never use a flex fan in order to keep the wrong radiator in the car.

My car had a direct drive (no clutch) fan when I bought it and it sucked. Loud and ineffective. A shroud, clutch, and half decent alum rad (with stock configuration) and now it works mostly right. It'll creep up to 210F if I idle for long periods, but at even 5mph it never gets over the stat temp of 195.