Originally Posted by Turbo Zetec

zetec is a relatively easy swap as it almost fits straight in on the cvh mounts. don't bother trying to do anything with the sierra cvh. you can get carb manifolds for the zetec too and adapter plates for the exhaust to fit a cvh manifold onto the zetec head.

pinto is also an easy swap, but they are getting harder to find in good condition, whereas zetecs are everywhere.