Is it possible to materially lower your engine temperatures by using an aluminum intake and heads?

Reason why I am asking is because I notice in the summer in high temps that the car tends to bog, my suspicion is fuel boiling/vapor lock. Now I already reviewed the sticky which deals with vapor lock in the Carburetor section but if temperatures can be controlled somewhat more by using, say a L98 head and aluminum intake on a Q-jet carbed L69 305 it should (in theory, if my theory is correct) help in driveabiltiy and performance?

I understand that the vapor lock issue is primarily due to fuel boiling in the float bowl of the carb, kind of like a tea kettle on a burner. But what if you make the "burner" -(which in this case would be the intake manifold and heads) give off less heat...That should go some distance in keeping fuel boiling at bay, would it not?

Thanks!
Chuck

P.S.-
I understand that sometimes these conversations go one of two ways:

1- Productive in the sense that the question is answered

2- Unproductive in the sense that the answer is "Get a Holly" or "Get a 350".

I already am aware that more power can be had for less $$$ but I just want an understanding of the technical aspects of using Aluminum for the intake and heads.

 

Aluminum heads can often make vapor lock situations even worse. Having aluminum on top of the motor it basically putting a hug heat sink on it. It does pull the heat out of the motor better BUT it also heats up what is on top even more which would be your carb.

 

Wow. Never thought of that.

 

So how do you get by with a carb being heat soaked like that? I guess a 1" spacer, which brings in head clearance issues as well would minimize it.

 

I meant "hood" clearance not head clearance

 

Spacers are one option. Putting insulation around the fuel line can help. There are also heat shield kits that use steel plates to help dissipate heat away from the carb base. Not sure how they work but could be an option when deal with hood clearance.

Example.
http://www.summitracing.com/parts/mrg-3712

 

Had a shield like that yrs ago on mine Holley made it. Took some trimming but cured the problem.

Seems ambient heat in the compartment itself is a huge player not so much one particular thing.

 

hmmm - interesting selection of answers. All other things being equal, YES aluminum WILL make your ENGINE temp lower. Aluminum dissipates heat more quickly than iron. Its less dense. Thats the physics, or the materials part of the issue. Now, you are stating you think you have a hot fuel issue. With a carb. Thats adds a few more options to the issue. It may be a weak fuel pump. It might be the fuel boiling the the carb. It could be a fuel line. It could even be an old fuel filter. It would be a shame to spend $1500+ on aluminum intake/heads and just have a weak fuel pump. So I would spend some time determining WHAT you really have going on. If its the carb, a spacer may do the trick. Again, a much cheaper option than the aluminum intake/heads. Since its a 1984, I presume you have a stock, single, clutch driven fan. And if original, a 2 core radiator. Lots of things that could be upgraded cheaper than intake/heads (if that is a concern, now if you are looking and excuse for more HP, thats a different story)