Sleeving 340 for a Stroker kit

toolmanmike said
Sleeves don't protrude into the crankcase. They machine the bore for a sleeve leaving a step the bottom for the sleeve to stop against when it is installed. They bore almost to the bottom. Find yourself a new shop.

I had to sleeve this blown up DIRT engine last week. The DART SHP block has surprisingly short cylinders. I only left about .100" for the step on the major and minor thrust sides but the rest of the sleeve can be seen hanging below. It went surprisingly well--about .0025" interference fit. As stated heat the block/freeze the sleeve slides about halfway in nicely and then some light hammering with a thick aluminum puck drives it home. This is one of my least favorite operations-lol. J.Rob