Wilecoyote
I'm Awesome
My 98 5.7 rad. is shot, looking for a new one, and maybe an all Aluminum 2 core.
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I replaced mine a year ago in my 99' 2 door Tahoe with one from Napa. The only issue I've had with it was that most replacement radiators have and extra outlet below the radiator cap that I believe is for a Suburban or Tahoe with rear heat/air.
If you don't need this, they put a cheap rubber plug and hose clamp on it....well the plug disintegrated and shot hot coolant all over the engine. Luckily i had just pulled into the garage and killed it. I replaced the plug and so far, no issues.
If I had it to do over again I'd buy an AC Delco radiator that is absolutely correct in every way.
If money is no object, get a Be Cool aluminum radiator. I've had a couple in older Corvette"s I've had and they were fantastic!! They are pretty pricey though!
I put a radiator in my '97 K2500, 7.4 (454).The only thing that could be better is that the filler neck is a little too high.... it rubs on the hood insulation. That may not be an issue with the small block radiator.... the 454 radiator is taller.
I put a radiator in my '97 K2500, 7.4 (454).
There were two radiators listed, one with the short filler neck, (1696) and one with the taller filler neck (1520). I bet you bought the tall filler neck version.
It's all about surface area for heat exchange, the more you got the more efficient it is.Would it be better to spend a little more and get one larger tubes.I think the HD was 1 3/4"