[RalphG]

Mart, I'd say that rusty flathead has as good or better chance of getting unstuck than either of mine do. Its going on 4 years since I've been pouring various mxtures down the carb and spark plug holes of the 49 Mercury truck engine and there is still no sign of movement there. Coming up on two years that I've had the "headless" 53 Merc engine on the stand with acetone+atf in any holes that will hold it I think the only way these will move is by unbolting every fastener on them.