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Hose 84214922 can be purchase to obtain the heater inlet/outlet quick connects, when creating a custom installation (Figure 6).
Fig. 6
HEATER HOSE ASSEMBLY
Engine Oil Cooling
The engine as delivered comes with a liquid to liquid engine oil cooler. Engine oil is pumped thru the cooler and engine coolant
is pumped thru the cooler, to transfer the engine oil heat into the engine coolant. The engine coolant should route to the lower
portion of the radiator, or inlet hose of the coolant pump. Heat is then removed by the engine radiator.
The LT4 Gen-V engine feature oil-spray piston cooling, in which eight oil-spraying jets in the engine block drench the
underside of each piston and the surrounding cylinder wall with an extra layer of cooling, friction-reducing oil. The oil spray
reduces piston temperature, promoting extreme output and long-term durability. The extra layer of oil on the cylinder walls and
wristpin also dampens noise originating from the pistons.
Pilot Bearing
You must install a pilot bearing in the rear of the crankshaft, if the engine will be used with a manual transmission. The pilot
bearing aligns the transmission input shaft with the crankshaft centerline. A worn or misaligned pilot bearing can cause shifting
problems and rapid clutch wear. There are two different Chevrolet pilot bearings for the LT4. 14061685 is for a long input shaft
transmission and 12557583 is for a short input shaft transmission. Verify fit prior to installing the transmission or damage will
occur.
Starter Motor
A starter motor is not provided with the engine. The following parts are designed for the LT4 starting system (Figure 7).
ITEM
DESCRIPTION
1
Shield-starter motor
2
Starter motor
3
Bolt-starter motor
4
Bolt-heat shield
Fig. 7
LT4 Wet Sump Engine
TITLE
ALL INFORMATION WITHIN ABOVE BORDER TO BE PRINTED EXACTLY AS SHOWN ON 8 1/2 x 11
WHITE 16 POUND BOND PAPER. PRINT ON BOTH SIDES, EXCLUDING TEMPLATES.
TO BE UNITIZED IN ACCORDANCE WITH GM SPECIFICATIONS.
PART NUMBER
QUANTITY
12656132
12619241
11610633
11588711
IR 02JA18
1
1
2
3
19332622
PART NO.
DATE
17AU15
Initial Release - Rocko Parker
02JA18
Revision - Rocko Parker
7
SHEET
REVISION
35
OF
AUTH
ECA P5E00313
N/A
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