Re: Drake aluminum manifold?
7.4L = 454 big block chevy.
I know that different configurations had different ports on the head, but can't confirm on the exhaust side.
Web doesn't bring up much on the drake manifold, just be aware that whatever you add, it's not likely to be a bolt in deal - hulls and engine setups tend to vary quite a bit.
Might post up how much you're paying for the manifold - I know there are lots of options... Ranging from $200-$2500+
I saw what I think was a cast "header" type manifold on new mercruisers at the boat show... Interesting deal. It had true header tubes in it for each runner, but I believe it was cast.
