Another small update,
engines now been stripped, condition wise it's pretty good, only issues found were worn valve guides and worn valve seats. Was also starting to show signs of getting ready for headgasket to fail, hadn't gone yet but wouldn't have been long.
Block is currently off at machine shop, i understand the closed decking is done and its now waiting for honing etc Time frame is still a couple of months as there's a que at the machine shop and there's about 5 or 6 engines to be built in the que even when the block does come back.
Also decided to sack off the secondary air system while its out.