90_spec

So I know there are loads of posts on this, but none seem to say WHere the block is drilled,
The casting looks the same with the raised rectangular piece to the turbo blocks,
Was it just the NA blocks didn't get the machining op to drill the boss through?
Anyone have any pics of the inside, where it comes through, as its close to a main bearing
Happy to drill it myself if I have seen an example. Would make a good sticky too
Thanks all
Rich

90_spec

HI All,
I could REALLY do with some advice on this, and i would be happy to take pics while im doing it but i need to know its the right move first,
I posted a couple of pics of the block on my Resto thread,
https://passionford.com/forum/restor...bby-resto.html


So as i see it, i drill the hole out from the inside face of the block (that mates to the sump) and then open the existing threaded hole up to a larger diameter for an oil return stub?


Thanks in advance
Rich