Stock parts.

With the D3VE heads that I presume you have (based on the piston part number) if you should rebuild as a 429 then I recommend flat top pistons so as to raise compression ratio to about 9:1. If you go 460 (only a cranksaft and piston change required), you will have a far greater selection of piston choices available to you.

For performance purposes, D3VE heads will require a great deal of reworking if used on a stroker engine. With more details about your inteneded build and desired hp, I'd be happy to make some parts suggestions.

Paul