I'll be down at the next meet mate...I know for sure that the ST170 gear is not gonna work in the non ST engines as it has some sort of VVT in it it i think. As well as the inlet manifold has adjustable straights...Plust the ST doesn't use the same engine management as the 2.0/1.8 as that EECV i think. So the only part i have robbed off the ST is the lovely 4 branch manifold and cat.