Here is my strong sleeper. Nothing fancy, installed New engine in May, 2010
Here is more or less all the data I have on the motor: It is (24 stud) motor, 263 Cubic inch displ, Iskederian 77B camshaft (new), Totally balanced motor including the clutch assembly, 3 3/16 bore with new Mercury aluminum pistons, 4 1/8 throw (Mercury crank stroked an additional 1/8 inch, 21A rods with 2" journals on the crank and new bearings, new main bearings, adjustable (Johnson) lifters, rebuilt distributor, Lincoln valve springs with the lash set at .014", and new cam bearings). New life for the old truck.
Just got the gears in the rear end swapped from 4:11 to 3:54s. Great for the highway now.
I have more photos and history on the truck in my album.