There was an old guy who's a member of VXLSCC who has a Vectra GSi 2.5 V6. He has a 3.0 bottom end, 2.5 heads and 3.0 cams. Was in TV a long while ago.
You got the 2.5 heads then?
Are you thinking of the black Veccy with pink detailing ?
This is the one Courtenay done , eventually done as a 3.2 complete new engine.
They were going to put his original 2.5 heads on but it never happened that way. They heard of somebody who tried it before & it promptly destroyed the engine which iswhy i thought of asking around 1st.
(if thats not the one then ignore me) lmao
I have the 2.5 engine in the Astra already & thinking about going 3.0ltr.