Lancia Beta HPE 2000 bolts for camshaft housing

[Mumrik]

Hi.

Am new to the forum and have a Lancia Beta HPE 2000 form 1976 that I'm doing some work on the engine at the moment. When taking of the camshaft housing on the engine to change the gaskets, I realized that the bolts between the housing and the head was at different lengths and not matching with each other, that the previous owner seems to have solved by using quite a lot of washers on some bolts.

When now reattaching the housing I'd like to change these to a set of new and correct length ones, but don't know where to find such. Is there anyone here that can help with a place that sells these bolts or know which is recommended?

Can see if I can get some pictures of the bolts in question and where they are positioned tomorrow.

Thankful for any support ad help.

[Mumrik]

Pictures.