Originally Posted by
markk
The problem is a 30yr old block that has corroded from the water jacket.
The 200 blocks crack across the stud face, the old 205s crack the bores when old.
The fix is using a spun ductile liner. If fitted correctly will resolve your problem with a known material at a known thickness.
Been there, done that. Still would not buy a 200 block.
but a 200 with a crack across the stud holes works fine when long studded so why don't you like them?
some years ago there was a long thread on here comparing 205 v 200 blocks and one of the contributors was Karl Norris. He described in detail the weak points of each and iirc was generally in favour of 205