[Jac Mac]

Rather than using a head gasket and head to set sleeves I use a large solid steel bar thru the main bearing tunnels with an old diesel truck rod which has a 1" dia fine thread rod welded on its small end and a circle plate to fit sleeve od/id to pull down on each sleeve individually, this avoids stressing the block in head bolt area. Built this way back in 70/80 era when I was looking after some tour jet boat stuff that where possible always got driven home regardless of what was damaged in the engine, hence the need for sleeves to restore bore damage... tourists don't like swimming in alpine rivers!!