69 Camaro SB to BB Radiator and shroud question - Team Camaro Tech
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post #1 of 7 (permalink) Old Sep 16th, 18, 08:02 PM Thread Starter
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69 Camaro SB to BB Radiator and shroud question

I am restoring my 69 back to int's factory drive train which included the 396 engine. My question is cooling. I have the SB 2 row factory radiator and shroud. The previous owner installed an aluminum clutchless fan. With the 396, is the factory radiator a 3 or 4 row? This is a 350 hp engine with a Muncie 4 speed. If I go with an aftermarket radiator, I know I'd want a factory looking shroud. Do I need a clutch fan or keep the aluminum fan.

I'd like to hear of others that have performed this transplant and what cooling set you are running.

Thanks much!

Prepare to be the center of attention when you drive a first generation Camaro. You will be gawked at. Grown men & women will coo like children when you drive past. Children will scream like babies. Dogs & cats will get along. Does it get any better?
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post #2 of 7 (permalink) Old Sep 16th, 18, 08:29 PM
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Re: 69 Camaro SB to BB Radiator and shroud question

The SBC radiator is too short (horizontal distance) to fit in a BBC radiator core support. The BBC radiator had a core that was two inches wider than the SBC and it had three rows of tubes unless it had A/C then it would have had four rows of tubes. If you are restoring it you want a copper brass reproduction radiator with a reproduction fan shroud. The motor had a five blade fan on a Viscous Fluid clutch hub.

If you want it to stay cool use a BBC width aluminum radiator (Griffin looks like a stock radiator when painted black) and a seven blade thermally controlled viscous fluid fan clutch from Hayden.

Aluminum doesn't cool better than copper, but it is a lot lighter. It is also stronger meaning you can run more pressure in the cap: BUT ONLY if you have a matching aluminum heater core. Added pressure from a higher test cap will split the seams of a copper heater core.

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post #3 of 7 (permalink) Old Sep 16th, 18, 08:43 PM Thread Starter
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Re: 69 Camaro SB to BB Radiator and shroud question

Dave, I have the Vintage Air Gen IV so not sure about the heater core in that unit but I'll check. On the Al radiator, do you think I could get the stock BB shroud to fit? Not looking for a spot on restoration.

Thanks buddy!

Prepare to be the center of attention when you drive a first generation Camaro. You will be gawked at. Grown men & women will coo like children when you drive past. Children will scream like babies. Dogs & cats will get along. Does it get any better?
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post #4 of 7 (permalink) Old Sep 17th, 18, 08:44 AM
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Re: 69 Camaro SB to BB Radiator and shroud question

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On the Al radiator, do you think I could get the stock BB shroud to fit?
That depends upon who made the radiator. Griffin makes one that can pass for the original, but it is expensive. Cheaper ones have all manner of fitment issues, but they are cheaper.

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post #5 of 7 (permalink) Old Sep 18th, 18, 03:01 PM Thread Starter
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Guessing I should just find a replacement factory radiator that came with the BB motor. This is a stock motor so there is no reason it should run hot. If it does run hot, I can always put the SB back in. Problem solved. That might very well be why the BB was removed from the car in the first place.

Prepare to be the center of attention when you drive a first generation Camaro. You will be gawked at. Grown men & women will coo like children when you drive past. Children will scream like babies. Dogs & cats will get along. Does it get any better?
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post #6 of 7 (permalink) Old Sep 19th, 18, 05:57 PM
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Re: 69 Camaro SB to BB Radiator and shroud question

x2 with Dave, I have a 425 HP468 BB with VA. 3 core copper original replacement with a 7 blade clutch fan and original fan shroud. Never have a temp issue even in our 65 days of 90 plus temps.
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post #7 of 7 (permalink) Old Sep 20th, 18, 09:36 PM Thread Starter
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Re: 69 Camaro SB to BB Radiator and shroud question

This is reassuring. Going to follow your lead!

Quote:
Originally Posted by The Camaro Guy View Post
x2 with Dave, I have a 425 HP468 BB with VA. 3 core copper original replacement with a 7 blade clutch fan and original fan shroud. Never have a temp issue even in our 65 days of 90 plus temps.

Prepare to be the center of attention when you drive a first generation Camaro. You will be gawked at. Grown men & women will coo like children when you drive past. Children will scream like babies. Dogs & cats will get along. Does it get any better?
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