Actually, the radiator I have is a 4-core Champion radiator, stock dimensions (except for thickness).
The car is a manual 1966 vert with 302 (but water pump mounted so passenger side of the radiator has both inlet and outlet rad hoses, like the original 289).
I have owned the car maybe 3 months, and it has been down for 2 3/4 months for things such as replacing fried headlight harness, seat extension, seat belts, electric fan, and AC installation -- so MAYBE driven 20 miles by me
I want to use the drain plug hole to insert the thermostat switch for my newelectric fan, however, I am not sure of the hole size and thread.
Presently, there is a magnetic oil drain plug in that hole, and it appears to be 7/16". SAE thread -- I THINK -- at least it appears to tighten up and fit.
I assumed that the Champion radiator would be identical in all aspects to the original 66 Mustang radiator, but I'm uncertain because I have seen (and myself inserted) SAE bolts forced in NPT holes and vice versa.
Checking the internet, I saw two different size plugs are mentioned -- 1/4" and 1/8" NPT (pipe thread!). Nothing about an SAE thread.
I tried calling Champion Cooling, but both their lines went to recording, AND THEIR MAILBOX WAS FULL.
I emailed them using their website, but the email bounced back. (Contact Us )
Huh??!!
1) Anyone with definitive knowledge on the size of a drain plug in a stock 66 Mustang V8 radiator?
2) Anyone know if the Champion replacement rad would have the same size hole?
3) Anyone ever mounted a screw-in thermostatic fan switch on their Mustang V8? Any suggestions for another threaded opening on the block or manifold?
Thanks in advance.
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The car is a manual 1966 vert with 302 (but water pump mounted so passenger side of the radiator has both inlet and outlet rad hoses, like the original 289).
I have owned the car maybe 3 months, and it has been down for 2 3/4 months for things such as replacing fried headlight harness, seat extension, seat belts, electric fan, and AC installation -- so MAYBE driven 20 miles by me
I want to use the drain plug hole to insert the thermostat switch for my newelectric fan, however, I am not sure of the hole size and thread.
Presently, there is a magnetic oil drain plug in that hole, and it appears to be 7/16". SAE thread -- I THINK -- at least it appears to tighten up and fit.
I assumed that the Champion radiator would be identical in all aspects to the original 66 Mustang radiator, but I'm uncertain because I have seen (and myself inserted) SAE bolts forced in NPT holes and vice versa.
Checking the internet, I saw two different size plugs are mentioned -- 1/4" and 1/8" NPT (pipe thread!). Nothing about an SAE thread.
I tried calling Champion Cooling, but both their lines went to recording, AND THEIR MAILBOX WAS FULL.
I emailed them using their website, but the email bounced back. (Contact Us )
Huh??!!
1) Anyone with definitive knowledge on the size of a drain plug in a stock 66 Mustang V8 radiator?
2) Anyone know if the Champion replacement rad would have the same size hole?
3) Anyone ever mounted a screw-in thermostatic fan switch on their Mustang V8? Any suggestions for another threaded opening on the block or manifold?
Thanks in advance.
