I think I read on Mr.Poole's site that the head in the GTE 16v is not known for going porous. Now I know the Astra I'm hopefully securing tomorrow is not a coscast one even though it's an F-reg.
Is the head as prone to porousity as the Cav GSi ones?
Think the engine is sound, though I am yet to drive it. It won't have a cat will it? So should be good for 150bhp after 94,000 miles.