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22 1/2 center to center on the bottom supports. It has a 350 in it but I'm assuming it was born with a 327 ! The intake manifold has the long oil filler tube in the front so I'm guessing however changed engines put the 327 intake on the 350.
2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
The 327 4 speed had the 2 post bottom mounts. The auto and AC models had the big block cradle style. The 68 big block/ automatic radiator is the same as the 66 and 67 big block radiators but is smaller than the 69 and later models. The radiator support is physially smaller and mounts inside the frale rails
69 and later mount in front of the frame rail to make it wider
22 1/2 center to center on the bottom supports. It has a 350 in it but I'm assuming it was born with a 327 ! The intake manifold has the long oil filler tube in the front so I'm guessing however changed engines put the 327 intake on the 350.
You will need a radiator the fits that width 22.5 inches the one you show at the top is 27.55 inches.
This is my radiator support. The car does have AC !I have Amazon Prime so I get free shipping. I just don't know which radiator the buy. If you could look at them and pick one that will fit, that would help me a lot !!
Why are you looking to purchase a radiator just for this season?
Why not buy the right radiator now that will work for what I’m assuming will be future modifications?
I have a Be-Cool radiator made for a manual transmission and a hot running 427. It fit perfectly with no modifications. The shroud is a SPAL shroud with two 11" electric fans in it and it fits and works great. If you are worried about excess heat then go to EASTWOOD as they offer multi-core radiators designed to handle any level of heat.
Be sure to get a PWM Electric fan controller so you have some peace and quiet inside the car. The PWM controller I have is a DeRale and starts both fans at 50% power/speed which keeps your voltage from getting spiked with two fans starting at 100% power. My controller works great and keeps the interior much quieter and as the engine continues to heat up it ramps the fan speed up to 100% only if needed. The radiator has been in use in my C3 for 25 years and is still working well.
What is the hallmark of a cheap radiator is those tube outlets manufactured by welding straight pipes into a bend instead of the proper type bends that are on OEM radiators.....and Dewitts. Nothing screams cheaper to me than that,.....I don't care how good the rest of it is built. Even Cold Case is done this way. Oh well....you get what you pay for....and I guess it works.
Last edited by Shovels and Vettes; Jul 14, 2022 at 06:30 AM.
What is the hallmark of a cheap radiator is those tube outlets manufactured by welding straight pipes into a bend instead of the proper type bends that are on OEM radiators.....and Dewitts. Nothing screams cheaper to me than that,.....I don't care how good the rest of it is built. Even Cold Case is done this way. Oh well....you get what you pay for....and I guess it works.
Seriously??? Just walked out to the garage and took this photo of the upper hose connection on my Champion radiator.
I'm failing to see how this mandrel bent fitting is somehow straight sections welded together.
Seriously??? Just walked out to the garage and took this photo of the upper hose connection on my Champion radiator.
I'm failing to see how this mandrel bent fitting is somehow straight sections welded together.
Ok......that one has a mandrel bent fitting, which says to me, its a good one. I didn't call out Champion by name, but the Champion radiator in post #12 above appears to have welded elbows. I was hoping to buy a Cold Case, made in my home state, made in USA.....but they decided to put the "homeboy" welded elbows on. Champion has not really been on my list.....maybe I will check them out.
I am also not interested in "saving money" to buy a radiator that does not fit properly in the mounts, or has hose connections going in the wrong direction. Generic radiators that are close is not my style.
Further,......if my car is a manual transmission.....I don't need a radiator with fittings for a transmission oil cooler. The drain plug should be where it was originally.
Radiator manufacturers apparently make business decisions on how close to original they want to come.....and somehow that equates to a different price. Their business decisions are not my problem. Dewitts builds them to fit, are very well built, made in the USA, and yeah....they cost more...surprise surprise. That's how capitalism works.
Last edited by Shovels and Vettes; Jul 14, 2022 at 08:01 AM.
Well I'll say this. I've had 2 champion radiators now. And the fittings are spot on and no interference with my swaybar or hood clearance.
But, they do NOT fit the factory mounts correctly.
Mind you only minor modification with the rubbers are needed. But perfect they are not.
