I have an original type four row Harrison manual radiator that I just took in for core replacement and to restore the sheet metal around it. I looked all over the thing trying to find a part number. I took a part number out of my restoration book for a 68 396 but couldn't find a number on it.

I don't think it's original to the car but the radiator guy said it was an original BBC manual radiatior for manual. Is there any way to tell what it came out of without a tag?

Side question: Is there a shroud bracket specifice to a BBC four row?

There should be letters embossed on the side tanks

I have an original type four row Harrison manual radiator that I just took in for core replacement and to restore the sheet metal around it. I looked all over the thing trying to find a part number. I took a part number out of my restoration book for a 68 396 but couldn't find a number on it.

I don't think it's original to the car but the radiator guy said it was an original BBC manual radiatior for manual. Is there any way to tell what it came out of without a tag?

Side question: Is there a shroud bracket specifice to a BBC four row?

try www.heartbeatcity.net
you may find some info there they do a G.M lisenced reproduction .
Don

Have you read this?

http://www.camaros.org/coolingsystems.shtml

I had not read that. I guess I have to look closer when it gets back from reconditioning. My radiator is the straight neck, which is correct so I was happy to read that.

What doesn't make sense to me is the statement in Rick's catalog. They note on the Harrison radiator page that very low rearend ratios (4.11, 4.88") require the curved neck. On CRG the curved neck was to avoid hitting the A/C equipment. So, what is accurate and does the curve serve another purpose (cooling)?

I had not read that. I guess I have to look closer when it gets back from reconditioning. My radiator is the straight neck, which is correct so I was happy to read that.

What doesn't make sense to me is the statement in Rick's catalog. They note on the Harrison radiator page that very low rearend ratios (4.11, 4.88") require the curved neck. On CRG the curved neck was to avoid hitting the A/C equipment. So, what is accurate and does the curve serve another purpose (cooling)?

Curved neck was for a/c big block to clear the a/c pump .. serves no other reason for cooling
Don

Thanks. The people at Rick's are saying it has better flow for cooling. Thanks for that clarification and I also feel better that I'm not short changing my motor.

Curved neck was for a/c big block to clear the a/c pump .. serves no other reason for cooling
Don

Also used on COPO cars (no AC).

Tony, the factory used .16" fin spacing. That is 6.25 fins per inch. The replacement core should be maybe 8 to 10 fins per inch. You will love the cooling here in Fresno with the extra fins. I used the Heartbeat City repro Harrison that has 8-10 fins per inch. It woked great last year in the 105 deg weather. Not so fun to drive on vinyl seats w/o AC though.

Thanks for the info. I'm looking forward to see how it comes out.

You haven't tried anything until you go for a ride in 115 deg with black vinyl and no air. Have a car show in Phoenix July 4. Can't wait (LOL). I bought one of the Harrison radiators from Heatbeat City also for a 302 and it works perfectly, even in this heat.