convert fourbranch mani from 8-16v head fitment

Just got an 8v 4 branch from a friend, wanted to cut the head flange off and weld on a 16v 1. Would this be simple or could the Fannymoulds be different angles?

I'd imagine that it's not that simple as the 8v head ports wont be the same spacing as the 16v head. Not only that but aren't the 8v ports oval rather than round?

I reckon i can get round that with a vice lol. will have to check the spacing, didnt think of that

8v are siamese ports so dont line up with 16v also it wont flow enough so even if you get them to line up with a vice and oxy torch you wont see the benefits you would from a proper 16v mani.

bummer, well thanks for the info