FE Power Forums

FE Power Forums => FE Technical Forum => Topic started by: olman on September 05, 2018, 01:31:36 PM

Title: aluminum heads and C3AE cast iron long tube headers
Post by: olman on September 05, 2018, 01:31:36 PM

Just wondering if the exhaust flanges on the aluminum heads are strong enough to support the weight of these heavy suckers.

Title: Re: aluminum heads and C3AE cast iron long tube headers
Post by: WConley on September 05, 2018, 01:49:42 PM

No they are not.  Why don't you just send those archaic lumps to me and be done with your problems  ;)

Seriously, they should work great.  You may want to consider inserts in the exhaust flange bolt holes, or at least a bit of anti-seize, to be sure the bolts don't gall into the aluminum.  I'll let the other guys chime in about the best exhaust gasket for that combination.  Unlike iron-iron, I don't think you will get an acceptable exhaust manifold seal without a good gasket.

Best of luck!  Sounds like a fun build.

- Bill

Title: Re: aluminum heads and C3AE cast iron long tube headers
Post by: ToddK on September 05, 2018, 06:28:39 PM

I ran a set of the C3AE long cast headers on a pair of Survival aluminum heads in my '63 Galaxie. They worked fine. I had the manifold faces machined flat and only used some high temp sealant, no gaskets. They sealed okay, no leaks and no problems with lots of street driving..