Stroking a 318 to a 390

No, if I attempt to put this together I’ll probably be using some ‘73 340 heads or 1995-1987 HD truck 475A castings, both open chambers, hence the piston being milled into mini dome shape. Even so, cylinder head selection is still variable because I’m into 3 builds with final installations right now so it’s going to be awhile before amassing parts and I’m not sure of what else may come available. I’d really like to have the 308 heads off that engine but they’re going on a grunt torque 360 going into a short wheel base W100 with 31 inch tires, 3.55s and an NP435. To be so much into cars, it seems like I work on an awful lot of trucks...