Radiator

[BigBlockTrucks]

What are the differences between a big block radiator and a small block? Is there more surface area or more cores? Or is there a difference at all? I’m hoping to use the small block rad with a 440. It’s not crazy HP. Just a bone stock motor home engine from 1977.

[PwrWgnDrvr]

One difference is the hose connection locations.

[Hobcobble]

What are the differences between a big block radiator and a small block? Is there more surface area or more cores? Or is there a difference at all? I’m hoping to use the small block rad with a 440. It’s not crazy HP. Just a bone stock motor home engine from 1977.

There's a good deal more cooling capacity for the BB radiator.
I'm not certain how many cores deep they are.... but the overall
dimensions are bigger. I think you'll be woefully disappointed if
you try to use a SB radiator for more than the fact the inlet/outlet
locations are different.

John

[BigBlockTrucks]

What are some options for a sufficient rad? Is a bolt in replacement available? Is there an aluminum alternative that fits with some mods? I’m not concerned about in and out. Top hose is center on engine and I have WP housings for either side.

[Hobcobble]

I'd put an ad in the Parts Wanted section to see if anyone has a stock rad
you can have re-cored. I'm sure there are aluminum alternatives too... its
just a matter of investigating suppliers....

John

[my5thmopar]

My 64 D100/440 has a Champion with minor modification. I had it in my 70 D200 with a 383. I went back to a stocker on the 70 and I like it better. Craig

[BigBlockTrucks]

Champion makes quality stuff. I have one in my 60 cooling a 383. You said with modification ,what was the rad originally made for?

[BigBlockTrucks]

There is more space in the 65. If spending for the aluminum rad it would look and work better if it took up all of the space available.