Jeep 1987 Wrangler Workshop Manual page 345

I P
ENGINES
I P
4 2 LITER (258 CID) SIX-CYLINDER ENGINE
SHORT
ENGINE ASSEMBLY
(SHORT
BLOCK)
A service replacement short engine assembly
(short block) may be installed whenever the
original cylinder block is defective or damaged
beyond repair.
It consists of a cylinder block, piston and rod
assemblies and crankshaft.
N O T E : T h e camshaft must be procured
separately and installed before the engine is
installed in the vehicle.
NOTE: For identification, short engine assem-
blies have the letter S stamped on the same
machined surface where the build date code is
stamped for complete engine assemblies.
Installation includes the transfer of components
from the defective or damaged original engine.
Follow the appropriate procedures for cleaning,
inspection and torque tightening as outlined in
this manual and the MOT. 4.2L manual.