Service manual

Description and Operation
Engine Component Description
SIE-ID = 69042
Cylinder Block
The engine block is made of cast iron and has
eight cylinders arranged in a V shape with
four cylinders in each bank. The cylinder block is a
one piece casting with the cylinders encircled by
coolant jackets.
Cylinder Head
The cylinder heads are made of cast iron. The valve
guides and valve seats are machined surfaces integral
to the cylinder head. The 5.7L heavy duty applications
have pressed in exhaust valve seats. The spark
plugs are located between the intake and
exhaust ports.
Camshaft
A steel engine camshaft is supported by five camshaft
bearings pressed into the engine block. The camshaft
sprocket, mounted to the front of the engine
camshaft, is driven by the crankshaft sprocket through
a camshaft timing chain.
Motion from the engine camshaft is transmitted to the
valves by hydraulic roller valve lifters, valve pushrods,
and ball-pivot type valve rocker arms.
Crankshaft
The crankshaft is made of cast nodular iron. The
crankshaft is supported by five crankshaft bearings.
The crankshaft bearings are retained by the crankshaft
bearing caps, which are machined with the engine
block for proper alignment and clearances. Light duty
182830
6-140 Engine Mechanical - 5.0L and 5.7L Engine
2002 - Unit Repair (May 25, 2001)