I have built a 416 SB and 431 BB,for me it’s BB all day long in a street driven car,it’s a lot like the difference in an old two stroke dirt bike and a four stroke,when you get that two stroke wound up it screams but the four stroke will pull your fat butt around in about any gear and just keep pulling.

I have hated every sb 4-speed car I have owned,doesn’t mean I didn’t have fun with them just preferred the bb grunt for cruising..


Take that 400,drop a 440 crank in it and it will be a lot more fun than the stock stroke version.