A 400 HO without the original motor, manifolds and carb is not a 400 HO. That engine is a 350 HO or a low compression 400 block circa early 70's. To advertise a car otherwise is seller hype and buyer ignorance.
Si Vis Pacem Parabellum
1967 Starlight black PMD Engineering 400 Auto 1968 Alpine Blue 400 4 speed 1968 Verdoro Green 400 HO 4 speed 2013 1LE 2SS/RS Inferno Orange Camaro.