Quote:
Originally Posted by badmatt
I do like the backwards heat dissipation idea though... Iron heads with an aluminum block. 
Mattykins |
In the past I've read a lot about how Iron heads make more power. I've had old time engine guys tell me the same thing.
Recently I've seen articles that debunk that myth or claim to. Those articles also say both head materials make the same power.
With an FE the head is actually small. The majority of the cool side is part of the intake manifold and so it's AL. The majority of the exhaust port is divorced from the main casting of the head. I think for Iron heads the design dissipates heat pretty well.
It does make you think more about cold valve lash.