Thank you Brian - that's really helpful info and advice.
I'm going to be doing a complete top end rebuild as well - looking through the history it was last apart 20+ years ago and while it's all apart seems a false economy not to.
Another question if I may - I'll be replacing the cam and followers and will be using plenty of cam lube - but a lot of engine builders particularly in the USA recommend using break in oil/running in oil (straight 30W with ZDDP) even with just a cam change.
I don't mind doing it if it really has some benefits - do you or others have a view?
Thanks
Andrew
Last edited by AndrewA; 25-06-21 at 10:47 AM.
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