Slant build / pistons

Nothing wrong with it, just wasn't finding any aftermarket pistons. Just one style replacements.
Wasn't sure that would be strong enough or get me the little extra pep I'm after.
Guess I will measure the bore, see how much taper there is and decide if I just need rings or a reborn and pistons. Probably the rebore
and pistons as I would like this rebuild to last

Remember, the slant was designed in the late 50's,, the internal recriprocating components are plenty tough and will take a doubling of the stock HP without issue
newer pistons such as the Wiseco and KB 2.2 L pistons offer new technology such as shorter skirts and thin metric piston rings,, and there is some advantage there, but unless you either got a smoking deal on the new technology parts or are planning an 'all out' slant six racing motor,, you will never measure the difference in the real world.
Along with Charrlie I do some slant six drag racing,, excluding the folks that race slants at the very highest level,, I don't remember anyone loosing a rod or piston without it being due to a secondary lube or timing issue,, if you want to talk about head gaskets,, that is another subject.