Ok so reading up on the Edelbrock RPM Magnum heads vs factory iron heads I'm getting conflicting info. Some say they will make more power, some say iron heads make more power, and other say the aluminum heads do but you have to go up 1 point in compression.

What is your guys take on this?

 

Aluminum heads make more power and allow for greater dispersion of heat from increased compression typically making them more efficient. Iron block and aluminum heads are a strong combination that's been proven in all types of engine combos.

 

I guess I'm debating if they will indeed increase power on a engine with just a cam

 

I got lucky and picked up a pair of the Edelbrock Magnum RPM heads along with an M1 2 barrel intake manifold that another guy no longer wanted. They are currently sitting in a corner of my garage. I had planned to install them on a 408 motor for my truck, but I just may install them on the stock motor to wake it up a bit, now that I have the 4.10 gears installed. Just have to find the time and energy.

 

I'm going with stick updated casting everything I read says they don't give much without upping the compression. Instead I got the Air Gap intake with the abig Gulp throttle body

 

Aluminum heads let you run higher compression, with less risk of spark knock, as compared to cast iron heads. That is where the advantage/power comes from. If you just swap out cast heads, for aluminum, as the only change, you won't see any power gains, aside from what you would normally expect from better flowing heads. (but to get the most out of the 'better flowing' part, you need a tune. )

 

Yeah I had to get a tune because if the cam. I didn't get the aluminum heads. I got updated factory heads plus the Air Gap and Big Gulp throttle body

 

You WILL notice a difference with all that.

 

Hopefully lol I figured down the line, if needed, I would get the aluminum heads and update the tune.

 

170cc intake 65cc combustion
https://speedmaster79.com/Mopar-Chry...linder-Heads_3
190cc intake 68cc combustion
https://speedmaster79.com/Mopar-Chry...Cylinder-Heads

Pretty decent deal on aluminum heads but then you need to get these fancy rockers
https://www.summitracing.com/parts/csp-s72026k

Not sure if your going to run boost, but the larger combustion chambers are less prone to detonation