Gold Lifetime Member
Join Date: Jul 2009
Location: casselberry, fl
Advice on choosing a radiator
I am looking for some advice on choosing a radiator.
My car was originally a 327/210 HP car. It came with a two row core radiator. The engine that has been in it all of the time I have owned it is a 350 from a mid 70's Impala. It is stock except for adding a four barrel, headers, and a hotter cam.
That original two row core radiator worked fine under most conditions but in bumper to bumper traffic on a hot day, the engine would start to overheat.
In this restoration, I don't have my exact engine picked yet. I'm not sure if I'm rebuilding my old 350 or getting a 350 crate engine. Either way, I'll be wanting something in the 350 to 400 HP range.......I'm guessing my old factory radiator isn't going to cut it with that.
So now I have to figure out what to get........I want to have a radiator that is stock looking or close to stock looking. And it has to be black!.....I don't want a silver colored radiator......Aluminum is fine as long as it comes painted black or can be painted black.....I don't want anything with plastic tanks.
My first question is.......can a factory two row core radiator be re-cored into something more efficient?....adding a third row to the core, adding more tubes top to bottom, more cooling fins, etc. It would be nice to save the original tanks if possible.
If re-coring to something better is not possible, then of the stock looking replacements I see out there, it looks like it comes down to.....a three row brass and copper......a four row brass and copper......or a two row aluminum.
The advertisements for the two row aluminums say with their two rows of one inch tubes, they have 30% better cooling capacity than a four row brass and copper. There is a DeWitt's aluminum that looks close to stock out there that comes in black. That looks good.......I don't want to get more radiator that I need though......if it's even possible to get more that you need!
So just looking for some direction here. Any advice is appreciated.
1968, 327 210 HP, Power Steering, Power Disc Brakes, Custom Interior, 4 Speed, Console, Gauges, Tilt Wheel, Speed Warning, Fiber Optics, 10 Bolt 3.55 Posi Rear end......Owned since 1978.