Yup its a 1.8 cvh from a sierra I've got, one of the later ones that came with an early form of fuel injection (CFi). The inlet manifold is massive and has stuff like exhaust gas recirculation which gets in the way of the chassis rails hence why I'm going down the bike carb & megajolt route to reduce space and hopefully get a bit more power out of it
im guessing though you could do something similar with the smaller cvh's by using carbs from a smimilar bhp bike?