magnums & A bodies exhaust fun(not)

?????

Standard LA headers or exhaust manifolds bolt up to the magnum head with no problem and seal fine with standard LA gaskets, I put a magnum headed 360 into my 68 Barracuda and have Hedman A-body headers on it. I also have several buddies with magnum crate motors that are using off the shelf headers intended for LA motors.

The exhaust port has less of the corner lopped off (i.e., more rectangular) but LA gaskets don't intrude into the port and didn't require any modification. I am using Felpro #1423 header gaskets. The sealing ring on the headers also contacts the surface of the head with no issues regarding the port shape.

Are you sure your engine doesn't have one of the mopar race heads on it? They are the only ones with a different exhaust port configuration that requires special headers.