Cylinder Block

WARNING: This page is about a different car, the 1995 Jeep Grand Cherokee, 1995 Dodge Ram Wagon, 1995 Dodge Ram Van, 1995 Dodge Pickup, and 1995 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.

Letter "A" following engine serial number indicates .020" (.51 mm) oversize cylinder bores.
A diamond-shaped stamp, located on top pad at front of engine and stamped on flat area of each oversize lifter bore, indicates .008" (.20 mm) oversize lifters.
A stamp "X" indicates .005" (.13 mm) oversize valve stems. The stamp is found on machined pad, near two 3/8" tapped holes on each end of cylinder head.