400 in a Scamp?

i have never done this swap so i can't really give any insite to it, but i think for the long haul a 318,or a 360 would be eaiser and less of a headache....i guess it is what you are trying to achieve, and how deep is your wallet. i have seen some 400 hp 318's. weight ratio is probably better as well. like mikesduster said parts are not a problem anymore....