red top small port / big port head swapable?

[BL8KK9T]

just woundering if a tvis head will bolt up to a small port none tvis block? bothe red top 7 rib.. i think
which head gaskit would i use?

[evil_si]

would bolt up,
but you would need the correct intake manifold to suit,

[Zak]

What about the external oil drain that the small port has?

[suberimakuri]

block it up.

use br900 gasket from appco/repco.