'66 Upper Radiator Hose
Thread Starter
Drifting
Joined: Nov 2002
Posts: 1,692
Likes: 208
From: Loveland, CO
'66 Upper Radiator Hose
After purchasing numerous upper radiator hoses that didn't fit, I thought I'd share my recent findings. My '66 small block may be a combination of differing thermostat housing and replacement radiator, but the stock recommended hoses have always been too short. Someone mentioned a Dayco 70751, but I have been unable to find one.
After rummaging through Checkers radiator hose racks yesteday, I found what I think is the answer. Goodyear #62123, $14.99. I had to cut 2" off the length, and it gives greater fan belt clearance than the short stock one.
Just wanted to share with those that have had similar problems.
Ralph.
After rummaging through Checkers radiator hose racks yesteday, I found what I think is the answer. Goodyear #62123, $14.99. I had to cut 2" off the length, and it gives greater fan belt clearance than the short stock one.
Just wanted to share with those that have had similar problems.
Ralph.
Thread Starter
Drifting
Joined: Nov 2002
Posts: 1,692
Likes: 208
From: Loveland, CO
Nope, what? I don't understand your comment.
I think I have the 300 horse thermo. housing and the radiator is of unknown origin since it came with the car in a box of parts after 20 yrs in storage. I have tried hoses for both the 300 horse and 350 horse and both were too short. The Goodyear one I referenced is long enough to cover a multitude of sins. And, may be useful to those that have had a similar problem.
Just my 2 cents worth.
Ralph.
I think I have the 300 horse thermo. housing and the radiator is of unknown origin since it came with the car in a box of parts after 20 yrs in storage. I have tried hoses for both the 300 horse and 350 horse and both were too short. The Goodyear one I referenced is long enough to cover a multitude of sins. And, may be useful to those that have had a similar problem.
Just my 2 cents worth.
Ralph.
Drifting
Joined: Nov 2003
Posts: 1,645
Likes: 65
Nope, with the correct De Witt replacement radiator and thermostat housing I have never seen a problem. With a Cu brass replacement, yes it seems many have the neck at an incorrect angle or are maybe shorter, not sure which.
Race Director
Joined: Oct 2005
Posts: 12,470
Likes: 1,548
From: Camp Verde AZ
C1 of Year Finalist (performance mods) 2019
2017 C1 of Year Finalist
Not everybody is into NCRS or correct parts, nor cares to spend the money to make it 'correct" and may need info like this. 
Doug
Doug
Drifting
Joined: May 2005
Posts: 1,307
Likes: 10
St. Jude Donor '09
Ralph, same thing happened to me on my 66 and the cause was the difference between suppliers of the hose itself. The two hoses differed, with one being about 2 inches too short, even though the part numbers were the same.
When I get home tonight I'll get the part number and post as reference.
John
When I get home tonight I'll get the part number and post as reference.
John
Melting Slicks
Joined: Jun 2006
Posts: 2,660
Likes: 7
From: DFW
25 year old brass replacement in my 66 has same problem. outlet is too far outboard and at wrong angle. I've always had to splice two sections to get a fit. Thanks for the tip...
(gonefishn: Yours a 350 hp or 300 hp?)
(gonefishn: Yours a 350 hp or 300 hp?)
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Race Director
Joined: Oct 2005
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From: Camp Verde AZ
C1 of Year Finalist (performance mods) 2019
2017 C1 of Year Finalist
This brings back memories of why I stopped doing Corvette clubs many years ago.
Them: "hey, you have a 1962 radiator in your '61 car, that isn't correct! A '61 radiator doesn't have the slots on top."
Me: So?
Them: But it isn't right, that isn't the correct radiator!
me: so f&$#'n what, it was free and I needed a radiator.
them: but you should get the right radiator.
Me: tell ya' what Bud, you buy me the correct radiator, i will put it in.
Arrggghh.
Doug
Them: "hey, you have a 1962 radiator in your '61 car, that isn't correct! A '61 radiator doesn't have the slots on top."
Me: So?
Them: But it isn't right, that isn't the correct radiator!
me: so f&$#'n what, it was free and I needed a radiator.
them: but you should get the right radiator.
Me: tell ya' what Bud, you buy me the correct radiator, i will put it in.
Arrggghh.
Doug
Drifting
Joined: Nov 2003
Posts: 1,645
Likes: 65
Not saying everyone must be into correct, just functionally the correct replacement from DeWitt has the best cooling capacity, the Cu Bbrass, just can not cut it with an A/C car.
Thread Starter
Drifting
Joined: Nov 2002
Posts: 1,692
Likes: 208
From: Loveland, CO
Calm down guys. I was just trying to give those of us with short radiator hoses (no pun intended) and option. For me the Goodyear was a godsend. I just hope it helps someone else.
Ralph.
Ralph.
Drifting
Joined: May 2005
Posts: 1,307
Likes: 10
St. Jude Donor '09
Mine is a 350HP (L79) 1966. I'm using (what I believe is resto-correct) a GM upper hose with a light blue stripe and the GM part number stamped on it.
