Starting a BB Duster project

Got to set up a radiator and shroud to simulate real world......just as Engine Masters did.
Weren`t they using a sbc for a test engine ? Torqueless little bastards unless u get into a bigger one. Our bigblocks probly handle the fan better, due to more torque to start with. I cant see 30 h.p. in a fan either, maybe 15 at the most on a small block. ???????