70-72 copper radiator code tag and overflow tube clip

[Mike E.]

I know the MK9 and the A K hose clip come from my 71 LT1 and are correct. Any idea what the MC4 and the A O clip come from? Why would the clips have identification info on them? The A O is about 1/16 inch shorter that the A K, and has a slightly different taper at the bottom end. Any input and help appreciated--always trying to learn!

[Joe L.]

Re: 70-72 copper radiator code tag and overflow tube clip

I know the MK9 and the A K hose clip come from my 71 LT1 and are correct. Any idea what the MC4 and the A O clip come from? Why would the clips have identification info on them? The A O is about 1/16 inch shorter that the A K, and has a slightly different taper at the bottom end. Any input and help appreciated--always trying to learn!

Mike------


I believe the MC4 coding denotes the GM #3030199 radiator used for 1973-76.

[Mike E.]

Re: 70-72 copper radiator code tag and overflow tube clip

Thanks, Joe. You are so often helpful.

[Russ S.]

Re: 70-72 copper radiator code tag and overflow tube clip

Joe, Do you know if the MC4 tag is for a 4spd or auto?

[Joe L.]

Re: 70-72 copper radiator code tag and overflow tube clip

Joe, Do you know if the MC4 tag is for a 4spd or auto?

Russ------



I believe the GM #3030199 radiator had provisions for transmission oil cooler. However, it could be used for either 4 speed or THM.

[Russ S.]

Re: 70-72 copper radiator code tag and overflow tube clip

But a 4spd car didn't come from the factory with the cooler provisions. Correct??

Russ------



I believe the GM #3030199 radiator had provisions for transmission oil cooler. However, it could be used for either 4 speed or THM.

[Joe L.]

Re: 70-72 copper radiator code tag and overflow tube clip

But a 4spd car didn't come from the factory with the cooler provisions. Correct??

Russ------


As far as I know, it did not. However, the radiator with transmission cooler, GM #3030199 was ultimately used for SERVICE of both 4 speed and THM-equipped 1973-E1976 Corvettes.

[Russ S.]

Re: 70-72 copper radiator code tag and overflow tube clip

That would sound right. Thanks