Orders may take longer than usual to process due to manufacturers having issues receiving and shipping parts. If you need to know if a part is in stock, please call prior to placing your order. We are doing everything within our control to ship orders as soon as possible.
12675871 - LS3 Cylinder Head Assembly
This product may require vehicle validation(s) for proper fitment. Please contact us to confirm correct vehicle fitment and usage.
New
SKU: 12675871
Stock LS3, Aluminum, 68.4 cc, Assembled
USD
878.98
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
Performance/Engine/Drivetrain - LSx Performance - Cylinder Head 4.00" Bore L92, LSA, LS9, LS3, 6.2L, LQ4, LQ9, L76, LS2, 6.0L Engine Components - Cylinder Heads and Components - Cylinder Heads Cylinder Head 4.00" Bore L92, LSA, LS9, LS3, 6.2L, LQ4, LQ9, L76, LS2, 6.0L|Cylinder Heads
Requires Shipping: Item Requires Shipping
Weight: 24.0 lbs.
Package Dimensions: W22.0000” x H7.0000” x L9.0000”
Trusted Specialists
GM engine & parts specialists
Located in the USA
Owned, operated, & employed
Need Assistance?
Call us at 888-748-4655
Have a Question
Email us and we'll get back to you within 24 hours
FAQ
Check out popular questions
Close
Total Reviews (0)
Write the First Review!