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11. Drive the next 500 miles (12 to 15 engine hours) under normal conditions. Do not run the engine at its maximum rated engine speed. Also, do not
expose the engine to extended periods of high load.
12. Change the oil and filter. Again, inspect the oil and oil filter for any foreign particles to ensure that the engine is functioning properly.
LS376/480 LS376/525 Engine Specifications:
Type:.......................................................................
Displacement:.......................................................
Bore x Stroke.........................................................
Compression:........................................................
Block:......................................................................
Cylinder Head:.......................................................
Valve Diameter (Intake/Exhaust):......................
Chamber Volume:.................................................
Crankshaft:.............................................................
Connecting Rods:..................................................
Pistons:...................................................................
Camshaft LS376/480:...........................................
Lift:..........................................................................
Duration:................................................................
Centerline:.............................................................
Rocker Arm Ratio:.................................................
Oil Capacity:...........................................................
Oil Pressure (Minimum, with hot oil).................
.................................................................................
.................................................................................
Recommended Oil:...............................................
Oil Filter..................................................................
Fuel:........................................................................
Maximum Engine Speed:.....................................
Spark Plugs:...........................................................
................................................................................
Spark Plug Gap:....................................................
Firing Order:..........................................................
Information may vary with application. All specifications listed are based on the latest production information available at the time of printing.
LS376/480 and LS376/525 EFI Crate Engines
ALL INFORMATION WITHIN ABOVE
Date
BORDER TO BE PRINTED EXACTLY
19FE20
AS SHOWN ON 8.5 x 11 WHITE 16
POUND NON-BOND RECYCLABLE
19MR20
PAPER. PRINT ON BOTH SIDES,
EXCLUDING TEMPLATES. TO BE
UNITIZED IN ACCORDANCE WITH
GMCCA SPECIFICATIONS.
6.2L Gen IV Small Block V8
376 cubic inches
4.065 inch x 3.622 inch
10.7:1
Cast aluminum, six bolt cross-bolted main caps
Cast aluminum rectangle port
2.16"/1.59"
68cc
Nodular iron, internally balanced
Powdered metal
Hypereutectic aluminum
Hydraulic roller tappet
525" intake, .525" exhaust
219° intake, 228° exhaust @ .050" tappet lift
112° LSA
1.7:1
5.5-quart (with filter)
6 psig @ 1000 RPM
18 psig @ 2000 RPM
24 psig @ 4000 RPM
Mobil 1 5W30 Synthetic
AC Delco part # PF48
Premium unleaded-92 (R+M/2)
6600 RPM
12680072
AC Delco # 41-985
040"
1-8-7-2-6-5-4-3
REV 19MR20
Revision
Auth
Init Rel – Blake Nye
NA
Revision – Blake Nye
NA
PART No.
19419890
DR
Installation Instructions
Title
LS376/480 and LS376/525 EFI Crate Engines
19419890
PART No.
SHEET
4 of 12
SHEET 4 of 12
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