Request help locating the right Radiator

[tyoneal]

Hello:

I would like some advice regarding a couple of questions.

I currently have a sbc with a 400 cid (Bowtie Block) in my car. It is very healthy, estimated at 525-550 hp. It was an original San Diego car and had no issues with over heating. Being in Texas, and with the installation of Vintage Air, the car wants and does over heat unless moving at quite a good clip.

My ideas to rectify this issue are:

a) It has electric fans on it now with a built in cowl system to promote the air to being pulled through the radiator. My thoughts are to look and see if I can close off any additional passages in front of the radiator that would not allow incoming air to bypass the radiator from underneath or otherwise.

b) Get a larger Radiator that is made to be used with the amount of power that the engine is putting out. Seems like many of the Radiator manufacturers seem to cut off the small and the larger radiators based on the engine power output, and the separation point is in between 500-600 Horse Power.

c) I would like some radiator advice from some of you who have had to move up to a crossflow, big radiator from a quality company, and use a Mark VII Fan to go with it. I have read on numerous occasions that by using that fan along with a larger more efficient radiator, that most if not all of someone's overheating issues can be handled using these two parts together. (Given there is not a Major Engine problem preexisting already)

Any and all feedback would be greatly appreciated regarding this. I am tired of dealing with this issue and want to get the car out a lot more without having to worry about it getting to hot.

Thanks in advance.

Regards,

Ty O'Neal

BTW: I have a Mark VII or VIII fan already set up for a 69 Camaro, and I really just need to acquire a terrific radiator to get back out on the road.