SB vs BB who wins?

Mean416 said
I think it's a bit more nuanced than that.

Just spit balling a bit, what are some advantages the BB offers over the SB...

1. Bigger bores, bore spacing
2. Heads will generally have significantly larger valves that can also work with the bigger bores.

Are there other smaller yet still significant factors favoring the BB? What about lifter angles, pushrod pinches etc?

Doesn't the big block have a better valve angle too? 15 vs 18 degrees ?

Mean416 said
Are there items favoring the SB?

Guessing mainly size, weight inside and out, bearing size ?

Sbm does have a lot of decent heads that will make enough power to keep most people happy especially at the rpm ranges most want to build in Eg. under 6500 rpm, the differences are less, but the bbm should be able to make 100+ hp over the sbm if both are built with logical parts Eg sbm trick flow vs bbm trick flow but probably at higher rpm depending on efficiencies. But if building both with similar head capability for similar rpm and tq/cid than out come should be similar but then are just really handicapping the bbm.