BLOCK TRU OHC ECCENTRIC
I made an eccentric for the front of an Audi block to set up the block true fixture. It uses the original slot as there is a bolt hole directly behind it. Several variations could be made with a smaller diameter eccentric and a slot in the plate to fit about any 90° OHC block. This ensures you’re machining the decks exactly 90° from one another and lets you “split the difference” to get there if they are not correct.

Ron Flood
Cedar Machine
North Branch, MN
May, 2020