aah that is strange must be crammed on the cam then
the cam only has 8 lobes, not 12. so its quite spacious in the head. the cam pushes rocker arms, which there are also only 8 of.
i did look under the bonnet of a kia pride actually, but the head on them is very long, plugs very far apart, and therefore so are the bores.
if this one doesnt work i have a few other possible cars to look at as potential head donors