So I have been working for the past several days to install a dual 40 DCOE set up on my 1.9L GT. I'm using the Dbilas shorty intakes with an OGTS shorty header. Currently I'm using the stock M9 x 1.25 x 30mm hex header bolts standard on US GTs, and have run into the problem of extreme difficulty...
I came across this site and they have a ton of parts for our CIH engines. Here is a link to the search results on their website.
Search Results - "opel cih" - Dbilas Dynamic
Does anyone have any experience with this company?