[chevelless1]

Can you recore an original 3 core radiator into a 4 row out of a 70 Chevelle using the same tanks? I ask this as I dropped off my original 3 core at a local shop and want to turn it into a 4 row and the shop said they ordered a new 4 row core and will be able to use the same tanks. He said the core is 2-5/8" Can this be possible? Sounds like a 3 and 4 row use the same tanks but a different core?

 

[Resq302]

I was told that the 4 row tank core is larger and they can not be interchanged with a 3 row due to the width. You probably could do the reverse, make a 4 row into a 3 row but that is not what you are looking to do.

 

[chevelless1]

that's what I'm thinking, but I got a different answer in the radiator forum...ARRRRGGG

 

[Jim_66SS]

There might be some problem with the fan shroud if the core extends to far back. Also there is generaly a U shaped metal piece welded to the inside of the radiator hanger bracket that only a core of the right width will slip into. Generally they hammer the backside of this channel flat to allow for the increased width or . Then you also have an option of going to 3/8" rows as apposed to the standard 1/2" row, which makes the core 2 1/8" as apposed to 2 5/8" I just did a 3 row and put in a 3 row on a 66 BB car because thats what came in the car, hope it cools; but won't know until this summer.

 

[alss]

Definate difference in the 3 vs. 4 core. The pass side is thicker while the drivers side is the same as the three core. Just went thru this with my COPO..was darn sure the car had a 4 core and went to great lenghs to find a 4 core manual trans Harrison rad..only to find out I needed a three core! Then had to find one of those!!!...BTW three core and two core use the same pass side tank.

ALbert

 

[chevelless1]

I would think they would be reversed.... the drivers side seems only for a 3 row and the passenger side accepts 3 or 4 row.

 

[alss]

I would think they would be reversed.... the drivers side seems only for a 3 row and the passenger side accepts 3 or 4 row.

DOhh brain f#rt:clonk: .your right I have it backwards..tough using your brain sometimes.

ALbert

 

[Xtreme70SS396]

While the 3 core and 4 core Harrison radiators are different, the 3 core can be modified into a 4-core using the same tanks. I assume that's what you're shop was going to do. I know of a couple people that have done this over the years.

It's a modification - not to say the originals aren't different, but that it can be done with the same tanks.

 

[chevelless1]

Yes that is what they are going to do. Turn my 3 row Harrison into a 4 row using the same tanks using a 2-5/8" core. I didn't think they could do that but after stopping in at the shop and seeing the 4 row they are going to put in along side my radiator I see how it can be done. Even tho the drivers side tank won't be correct for a 4 core I will sacrifice the "correctness". I'm getting to anal about this car anymore and it's driving me nuts........no more restorations for me.

 

[Xtreme70SS396]

And you doubted...