318 Build

Thanks mate, I appreciate it =)

Those RHS heads flow really nice numbers, much better than my Iron factory units and Brian has a reputation for doing very high quality work. I'd say you're probably right on the money with that 380hp estimate as long as you check your compression for the desired ratio properly before final assembly. I know that seems obvious but it's amazing how many people don't bother and instead blindly trust the piston manufacturer's estimate.

Another thing with KB hyper eutectic pistons is that the person who gaps the rings absolutely MUST MUST MUST follow the instructions/formula provided for calculating ring gap, most engine builders know off the top of their head roughly how much ring gap is usually needed and it's easy for them to assume "pistons are pistons" but these aren't any ordinary set of cast pistons. they need much bigger tolerances coz of their high silicone content. Or at least that's the theory I've heard of most often.

When I ran the kb hypers I bought a set of non-file-fit (already gapped out of the box) rings and filed them the rest of the way to meet the required spec. they were miles too small.

Love to see a 318 get some love, Be sure to keep us updated and best of luck!