telltt4u

need to replace my 1986 OEM radiator with a 2 core unit. Suggestions/things to be aware of.
Thanks

zr1fred

For regular driving, the OEM unit should be fine. If not, you probably have other problems. Under no circumstances go with a brass replacement.

corvetteronw

gerardvg

Hi
Pay careful attention to the core size, the standard radiator has a 1 inch thick single row core.
Some sellers may say double row but are only 2x 1/2 inch rows ,
2x 1 inch rows is what you want.

Be careful of cheap Chinese ones that have thin aluminum rows that expand and restrict airflow.

It cost me the same in postage in overseas freight for a double row one on ebay,it had restrictions the ends of the core was folded over would not flow enough coolant.
It was as much as another radiator to post it back, Purchased another one after some members recommended them that has been good.

Dewitts double row are the best but cost $500.... they have a cheaper 1.5 inch single row radiator also.

Search google and do some research.

Cliff Harris

You need to modify the rubber radiator mounts to accommodate the thicker radiator.

The DeWitt's radiators come with the correct radiator mounts already cut.

jpipx

I went with the DeWitt's double row aluminum in my 95... great product, fit like a charm. Highly recommended.

pologreen1

champion 3 core does fine on a slightly rowdy 434 in hot weather and long road trips.

zr1fred

On radiators, more is not necessarily better. flow is as important as surface area. One core aluminums generally have more surface area than two core (measure the width of the one core and then the total width of the two core - not the distance from front of first core to rear of second core.) Less cores mean less restriction, both in fluid throughput and air over cores.