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LS9 Engine Specifications
Type ................................................. 6.2L Gen IV Small Block V8
Displacement ..................................................... 376 cubic inches
Bore x Stroke .............................................4.065 inch x 3.62 inch
Compression ........................................................................9.1:1
Supercharger Boost Ratio ..................................................10.5:1
Block ..................Cast aluminum, six bolt cross-bolted main caps
Cylinder Head ................................Cast aluminum rectangle port
Valve Diameter (Intake/Exhaust) ............................ 2.16"/1.59"
Chamber Volume .................................................................. 68cc
Crankshaft ............................... Forged Steel, internally balanced
Connecting Rods ................................................Forged Titanium
Pistons ..............................................................Forged aluminum
Camshaft ...................................................Hydraulic roller tappet
Lift ................................................... 562" intake, .558" exhaust
Duration .............. 211° intake, 230° exhaust @.050" tappet lift
Rocker Arm Ratio ................................................................1.7:1
Oil Pressure (Minimum, with hot oil) ............ 6 psig @ 1000 RPM
. ..............................................................18 psig @ 2000 RPM
. ..............................................................24 psig @ 4000 RPM
Recommended Oil ............5w30 Dexos 1 motor oil or equivalent
................... (must meet GM4718M specification, which will be
.......................................................... specified on the oil label)
Oil Filter .................................... AC Delco Part Number UPF48R
Fuel........................................... Premium unleaded - 92 (R+M/2)
Maximum Engine Speed .............................................6600 RPM
Spark Plugs ........................................................... GM 12571165
................................................................... AC Delco # 41-104
Spark Plug Gap .....................................................................040"
Firing Order ......................................................... 1-8-7-2-6-5-4-3
Information may vary with application. All specifications listed
are based on the latest production information available at
the time of printing.
LS9 Crate 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.
19244099
REV 06JN16
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REVISION
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