What are your choices for a block? The project will be for a 19' jet boat primarily used for the river, but will see time at the track as well. Would like to run 10.0 and stay on pump gas. Looking at a 540 aluminum head roller motor and we want to start with a new block.
What are your thoughts? Dart, Merlin? I'd really like to try and get the owner to step up to an aluminum block, but I'm not sure if that's in the cards. As usual, price is important, but not everything.