SKMFX Engines gets 519 hp stock stroke 360

Those X heads musta flowed pretty well.

What I would like to know is does the main girdle Hughes sells help with bearing cap walk? I am kinda disappointed that they did not incorporate one in my stroker build. The builder says it is not needed until about 550 - 600 HP and the thing has to be there before line boring the mains which they did on my build. Cheapskates!