Would this be overkill for a reliable 450hp

Built B20 brand new
gsr crank/ micropolish and balance
benson sleeves
jg pistons w/ total seal rings 9.5-1 comp
forged rods
everything balanced within 100ths of a gram
deburing
adj cam gears
modified gsr oil pump

b20 head with
everything arp to withstand 9000rpm
full port/polish
deburing
square ports
turbo head gasket
And intake manifold square ported and matched

All for 4500 plus shipping

Does this sound like a good motor to get 450hp out of or should I get something else?

Im almost done with the chasis and now its time to get a motor. I already have a ys1 tranny with 4.7 final

Open to any motor combo B series that would net me those numbers safely!

 

its expensive...
i dont really like the setup either
just me

 

Just curious why do you want to put a gsr crank in a b20.