66 BB radiator question
Thread Starter
Race Director
Joined: Jan 2007
Posts: 13,671
Likes: 14
From: Down on the bayou in south Louisiana
St. Jude Donor '10
66 BB radiator question
My radiator has been giving me problems for a while so I bought a replacement core from one of the well known vendors. I've had it for a few months and decided to start the replacement today. When I removed the core from the box I noticed two holes on each end in the top brace. On each end there was a rectangular hole with a square hole about an inch away. My old radiator, which I thought was original, has no holes in the top brace. I checked with a friend who has a 66 BB and his original(?) radiator doesn't have any holes. I checked the judging manual and it says the holes should be there. Anyone know if both styles were used?
Racer
Joined: Feb 2007
Posts: 312
Likes: 2
From: San Antonio Texas
I will look at the one I pulled a few months ago.
It is in my storage shed.
I put in the De Witt's Aluminum replacement one with epoxy black paint
and it fit perfectly.. Man, it sure runs cooler....
Living down here in hot weather it is the way to go..
This motor won't even start to get hot, even stuck in bumper to bumper traffic on a hot summer day!!
Cheers, Zale
It is in my storage shed.
I put in the De Witt's Aluminum replacement one with epoxy black paint
and it fit perfectly.. Man, it sure runs cooler....
Living down here in hot weather it is the way to go..
This motor won't even start to get hot, even stuck in bumper to bumper traffic on a hot summer day!!
Cheers, Zale
Team Owner
Joined: Oct 2000
Posts: 38,897
Likes: 1,926
From: Washington Michigan
When I removed the core from the box I noticed two holes on each end in the top brace. On each end there was a rectangular hole with a square hole about an inch away. My old radiator, which I thought was original, has no holes in the top brace. I checked with a friend who has a 66 BB and his original(?) radiator doesn't have any holes. I checked the judging manual and it says the holes should be there. Anyone know if both styles were used?
Thread Starter
Race Director
Joined: Jan 2007
Posts: 13,671
Likes: 14
From: Down on the bayou in south Louisiana
St. Jude Donor '10
Thanks for the information. I got the new core put in today using the bar with the holes and should have it in the car tonight. A short test ride and we're heading down to the big "Cruisin' the Coast" show.
Safety Car
Joined: Mar 2009
Posts: 4,191
Likes: 951
From: Corpus Christi, TX
John showed the correct radiator. If you still have heat problems, but want to keep a brass radiator with stock side tanks, there is a high efficiency core available that your friendly radiator shop should be able to get for you. The stock radiator has four rows of tubes spaced 9/16 inch apart and has 12 fins per inch between the tubes. The high efficiency core has five rows of tubes spaced 3/8 inch apart and has 14 fins per inch, and will fit to the stock tanks and will allow correct radiator mounting. It makes a bigdifference in engine temperature.
