When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
If you are looking at DeWitts for added cooling capacity, it is a great choice. My car has had a DeWitts since 2013 and I am very happy with it ten years, 35,000 miles and 20 days on race tracks later.
Keep your GM car all GM. The radiator will bolt in, perfect fit and work with your other components as designed.
Now, if you have done a some HiPerf mods, track or race your car, Dewitts would be a solid choice for if extra cooling is required.
I put a Dewitts on. It also just drops in. You can kill three stones with one bird... water, trans, and engine oil. Putting the c6 oil line on was a bit of a puzzle tho. We have another thread in the c5 tech forum about it. You will need to trim the fan shroud among some other tasks for the oil lines.
It is twice the thickness of the original for much increased cooling capacity. But the end tanks and mounting locations for the AC and fan re unchanged. (the original is about the same thickness of the AC..)
I think a good general rule of thumb is if you aren't heating the oil much above the water temp with no oil cooler and stock radiator, there is no need for an upgrade radiator...
I've had my DeWitts in for 17 years/100,000 miles. Does exactly what it should. It is a "direct fit" radiator. If you never want to go through changing your radiator again, DeWitts is the radiator you want. Just change coolant per GM instructions, say every 4-5 years, with 5 years being the very most I'd go before changing coolant out. It's more money up front, for sure. If you don't plan on keeping the car, I'd go with the GM radiator. I've owned my car for almost 20 years now, so I'd probably be on my 3rd, or 4th radiator by now. In other words, the DeWitts has paid for itself.
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.