Yes m8 if its oil its blue smoke and head gasket is white smoke (water) my m8's dad did min on the cheap he'd never done a cvh before but it's spot on

''Specialised engines'' i've heard bad things about them (head gaskets going on a rebuilt cossie engine after only a few hundread miles )

i've got a rs turbo engine in my shed that im painting up done by power enginering about 1900 miles ago i brought it for £500