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12675871 - LS3 Cylinder Head Assembly

SKU: 12675871

Chevrolet Performance Parts - 12675871 - LS3 Cylinder Head Assembly

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Pricing: $969.86

This product may require vehicle validation(s) for proper fitment. Please contact us to confirm correct vehicle fitment and usage.

Stock LS3, Aluminum, 68.4 cc, Assembled

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Description

12629063 LS3 Cylinder Head Assembly Features:

Aluminum performance head

Fits any LS family engine with 4.00" bore or larger
2.165" hollow stem intake, and 1.59" solid stem exhaust valves
.550" max valve lift
As-cast L92 style 260cc intake ports
D-shaped exhaust ports
As-cast combustion chambers

Head 12615879 is assembled with the following components:

12569427 Intake Valves
10166344 Valve Spring Retainers
12582719 Exhaust Valves
12482063 Intake Valve Stem Seals
12625033 Valve Springs
12482062 Exhaust Valve Stem Seals
10166345 Valve Locks

Lift	.200"	.300"	.400"	.500"	.600"
Intake Flow	151	208	256	294	316
Exhaust Flow	111	152	174	183	189

Related Install Parts:
New Coil on Cover Holley Valve Covers
GM Performance LS Head Bolt Package
GM Performance LS Head Gaskets
GM LS Valve Cover Bolts with Seal
GM LS Valve Cover Gasket Seal
GM Performance Intake Manifold Gasket Seal Kit
GM Performance Exhaust Manifold Gasket
GM Performance CNC LS3 Cylinder Heads

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