[QUOTE=80 BB stepside]I dont have a 454 yet but i am looking for suggestions as to what to do tothis 402 then.I got a set of 049 heads that need rebuilding and i`m looking at the easiest way to build a big block to produce 450 HP.I`m not 1 for bigger cubes i`m 1 for a healthy sound and a definate rumble and something noone has seen like this 402 for instance under the hood of my 80 c10 once completed.I know everyone says build a 454 or bigger.But I`m not looking for the cheapest way to build 1 just the smartest way to build 1 and get the asking HP out of it.I also forgot to mention this truck i`m building is for my mother so i dont really want to go over 450hp or she may be in more trouble then what its worth lol....................................WELL the smart way could be a 402?? you have that ... and get it to 400 hp EZ to do but them 049 heads will take a hell of a dome to get any cr the 402 is not a cheap way to go but if you have it use it . a 454 has more pistons availability in many forms cast hyper forged i would build the for max QT not your HP all mine bbc i have built over my 25 + years of building them they all sound healthy They are bbc