Choosing pistons

Typically stroker kits run a kinda high compression ratio, especially the 408. This might be too high for a boosted application using pump gas, are you running E85?

If not a piston with a -30 to -40cc dish will drop the CR to be useable with pump gas. You might be able to keep your current pistons if you plan on low boost and W/M injection.

I'd recommend a 2618 alloy forged piston. All forged pistons aren't exactly boost friendly, the 2618 is your best bet.

I'd run full groove main bearings to provide full time oiling to the rod bearings in a boosted application too.

Best of luck on your build.