Cylinder Heads; Engine Block; Exhaust Manifolds; Intake Manifold - Chevrolet Corvette 2005 Owner's Manual

2005 Chevrolet Corvette Restoration Kit
journal. A crankshaft position reluctor ring is press fit mounted at the rear of the crankshaft. The reluctor
ring is not serviceable separately.
Cylinder Heads
The cylinder heads are cast aluminum and have pressed in place powdered metal valve guides and valve
seats. Passages for the engine coolant air bleed system are at the front of each cylinder head. The valve
rocker arm covers are retained to the cylinder heads by four center mounted rocker arm cover bolts.
Engine Block
The engine block is a cam-in-block deep skirt 90 degree V configuration with five crankshaft bearing
caps. The engine block is cast aluminum. The five crankshaft bearing caps each have four vertical M1 0
and two horizontal M8 mounting bolts. The camshaft is supported by five camshaft bearings pressed into
the block.
Exhaust Manifolds
The exhaust manifolds are a one-piece cast iron design. The exhaust manifolds direct exhaust gasses
from the combustion chambers to the exhaust system. Each manifold also has an externally mounted
heat shield that is retained by bolts.
Intake Manifold
The intake manifold is a one-piece composite design that incorporates brass threaded inserts for
mounting the fuel rail, throttle body, and wire harness studs. Each side of the intake manifold is sealed to
the cylinder head by a non-reusable push-in-place silicone sealing gasket. The electronically actuated
throttle body bolts to the front of the intake manifold. The throttle body is sealed by a one-piece push-in-
place silicone gasket. The fuel rail assembly, with eight separate fuel injectors, is retained to the intake by
four bolts. The injectors are seated into their individual manifold bores with O-ring seals to provide
sealing. A fuel rail stop bracket is retained to the rear left of the intake manifold by mounting bolts. The
manifold absolute pressure (MAP) sensor is installed and retained to the top front of the intake manifold
and sealed by an O-ring seal. The evaporative emission (EVAP) solenoid valve is mounted to the front of
the right cylinder head. There are no coolant passages within the intake manifold.
Oil Pan
The structural rear-sump oil pan is cast aluminum. Incorporated into the design is the oil filter mounting
boss, drain plug opening and oil level indicator tube opening. The alignment of the structural oil pan to the
rear of the engine block and transmission bell housing is critical.
Piston and Connecting Rod Assembly
The pistons are cast aluminum. The pistons use two compression rings and one oil control ring assembly.
The piston is a low friction, lightweight design with a flat or recessed top and barrel shaped skirt. The
piston pins are chromium steel and are a full-floating design. The connecting rods are powdered metal.
The connecting rods are fractured at the connecting rod journal and then machined for the proper
clearance. All applications use a piston with a graphite coated skirt. The piston and pin are to be serviced
as an assembly.
Valve Rocker Arm Cover Assemblies
The valve rocker arm covers are cast aluminum and use a pre-molded silicon gasket for sealing. Mounted
to each rocker cover are the coil and bracket assemblies. Incorporated into the right cover is the oil fill
tube and the positive crankcase ventilation (PCV) fresh air passage.
Valve Train
Motion is transmitted from the camshaft through the hydraulic roller valve lifters and tubular pushrods to
the roller type rocker arms. The nylon valve lifter guides position and retain the valve lifters. The valve
rocker arms for each bank of cylinders are mounted on pedestals or pivot supports. Each rocker arm is
retained on the pivot support and cylinder head by a bolt. Valve lash is net build.
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