I am starting to gather parts for a new engine and because the prizes for original heads and the work and parts that have to be added are completely insane (at least here in Germany), I am looking for aftermarket heads.
I would like to reuse my Blue Thunder 4V intake and thus looking for a 4V head. The only ones seem to be the CHI 4V heads and the ProMaxx.
You can find a lot about CHI but almost nothing on the ProMaxx Heads for the Cleveland.
Has anybody here used these heads or can tell something about them? Are they true 4V heads?
Thanks a lot and as always: sorry for my bad english