garage goat2

I have a 1987 Cutlass Salon with a 355 and was wondering what would be a good radiator to put in it?

I am currently running the 307 one and it is not up to the task. Would anyone have any ideas? Thanks

oldcutlass

How do you know its not up to the task?

pavemobile

Not sure where you are located, but if you have a radiator repair shop within reasonable distance/local, have them boil and rod out the core. If it is found to be unserviceable, have the core replaced. The A/C cars came with a 3 core copper/brass from the factory and were very good at cooling in all ambient temps. I ran my '86 in Kansas, Florida, Texas, Nevada in all seasons and never had a problem. I had the core cleaned and rodded in 2010 and even with the lower 25% partially built up with debris, cooling was still adequate.

CRUZN 66

What is the actual problem you are having??? Have you already ruled out water pump, fan (with/without clutch), etc...

garage goat2

It's overheating in traffic with the A/C on.

Thermostat, water pump and the clutch fan are all new.

oldcutlass

What temp is it getting to? Ignition timing and lean carb settings can also lead to higher temps. For a radiator you'll need to go to the aftermarket using your radiators physical dimensions or get yours cored to a larger size.

joe_padavano

Let's back up. WHICH 355, for starters? Olds or Chebby? What else has been done to the motor? How is the vacuum advance configured (ported or manifold vacuum)?

midnightleadfoot

if chevy. correct fan shroud? correct rotation water pump?

garage goat2

355 Olds, it has an Xe 268 cam in it. And it's running at 220 and rising.

midnightleadfoot

Clutch fan?? is it working. or freewheeling ..while hot?