Got a set of 102mm Mahle Jugs from my 3.8L tear down.
I do not know the complete history. The Ross pistons that it came with
are out of spec -- there is 0.0055-0.008" clearance, and some evidence of
piston skirt scuffing. The pistons are becoming paper weights.
I do know the heads were "melted", but they have been reflowed and rebuilt.
Trying to decide the best course of action with the Jugs.
Here are the measurements off of a 4.015" bore size. Ovality within 0.0005, taper within 0.0002-0.0003, max-bore delta among all pistons is 0.0006.
I have one jug that has some plating that is flaking off -- all others look fine.
What should I do with these jugs...... looking to re-build up the 3.8 race/track engine.
If I need to machine the jugs.... I could consider going to 4.0L as that
fits within my class.
I've considered going to nickies and dispose of these jugs -- but the cost seems pretty high if these are useable.
thanks,
mike