my boy back in long Iland has a 69/70 gto judge replica with a 400 small block tri power set up on it cool lookin and sound's and go's good but suck's down the fuel even better..

belive it or not 455 were'nt much better the the 454 or 460 , the hot engine's of the day were 351clevland(big block the windsor is a small block) 427(both ford and chevy but ford also had the 428 too) 396 chevy, 400 small block chevy & pontiac , 390 ford , 302 pontiac & ford.. and the grandfather 327 fuelie vette engine's of the early 60's
it's funny and often over looked motor is an electric divise while an engine power's a car , some ASE mechanic's still refure to an engine as a motor .. look it up it is the truth...