Few questions first: I saw that there is a RPO code for a better cooling system, what did this consist of?

Continuing: I'm installing a carbed 350 replacing my 305 the car used to be a 2.8 and still has a stock v6 cooling system to the best of my knowledge.

Basically I'm asking what are my options, will the dual firebird fans fit in camaro engine bay with 350 and are they better then just a single larger fan?

How many different types of radiators were put in these cars and which is the best, or am I better off getting an aftermarket radiator.

 

Yes, the dual fan setup will fit both cars..

 

Your best bet would be to go with an aluminum replacement rediator. They cool much better than stock copper ones. Modine makes a direct replacement one for $149. Napa and some other autoparts stores sell them.

As far as cooling fans. I honestly think a large single fan cools just as good if not better than the dual fan setup. I would say your best bet would be to replace the motor on your existing fan, put in a cooler temp fan switch and save the money. It should cool really good.

The problem with the dual fan setup (if it is wired stock) is that only one fan cools the radiator when the ac is off. This means that only half the radiator is getting cooled at a time unless of course you wire the two on the same circuit.

 

So when it's wired differently you can have two fans cooling insted of one? hmmmm anybody know if this produces better cooling also What about replacement fan motors for the smaller dual fans are they available? And finaly what about a stock aluminum radiator I would assume there isn't much in the difference between that and a aftermarket aluminum one.

 

I have the stock dual fans in my car (factory). I replaced the AC and coolant switches and bought a flex-a-lite variable speed controller. You simply wire the fans into this controller, the controller to the battery, and a probe that inserts into the radiator fins. At 210 degrees, the fans come on a 60 percent.

In fact, I hardly ever see them run at full 100 percent. These fans pull more than enough air to get the job done.

Iv been at a constant 210 degrees for the past few months. No more of that going up to 260 degrees and then suddenly coming back down to normal temp.

BTW as a comparison, I have dual electric fans on my truck (1995 TBI 350) that pull around 5200cfm at 100 percent. I also have a brand new 3 core radiator installed. Those fans have to turn almost 100 percent all the time just to keep the truck cool. This is even with light driving. The camaro cools EXTREMELY easier than the truck for some odd reason.