^Yup true, but if you get all the internals taken care of, then if all that is left is a bolt-on, it's not a big issue to swap over in comparison![]()
exactly - i'm just pointing out where you will need to look if it doesn't meet expectations - intake manifold is going to be the number 1 problem area i think (as well as rod ratio if you want to push insane RPM in the future - but you've already stated that pushes the budget way out)
just to reiterate, 150hp isn't a huge goal - it can (and has) been done with nothing but bolt-ons...i'd be revising your goal upwards a little bit if i were you (or not, and be pleasantly surprised when it cracks a big number)