Carrier exhaust manifolds - both V8
 

Worth a try...
If nothign else, it spreads laughter in the world... :)

Looking for a pair for a Mk1 carrier.

Aside... I have heard that these were also used in power boats with the V-8s.. any body have knowledge of that? Or sources??

Not quite specifically for boats, but the standard 30's exhaust manifold.
Examples turn up on E-bay fairly regularly for the observant, like this one: Left side manifold.

Note that these are different to the style of manifold fitted to CMP's, and trucks of the 40's, and very different to the manifolds used on post-war Fords and Mercurys.

Thanks Tony! Perfect timing! Owe you a beer or three for turning me on to that!! Thanks!