FS: LS3 stage 2 CNC heads with Comp 921 kit
05-05-2016, 11:38 AM
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FS: LS3 stage 2 CNC heads with Comp 921 kit
Selling a set of Livernois Motorsports (Detroit Speed) Stage 2 CNC ported LS3/L92 Cylinder heads. These heads were machined from new GM castings.
These heads will work on any 4" bore or larger LS series engine. Must use LS3 compatible (or GM truck) rectangular port intake manifold. Does not come with rocker arms.
The cam used only had .6-teens lift so the springs were not highly stressed by very high lift cam.
- 5 axis CNC machined
- Fully assembled
- Intake Flow Rate 360 CFM
- Exhaust Flow Rate 245 CFM (264 CFM w/ 3/4" Pipe)
- Manley Stainless 2.160 Intake Valves
- Manley Stainless 1.590 exhaust valves
- Comp 921 Valve Spring Kit including Valve Seals, Titanium Retainers, and Locks
- 71cc combustion chamber
- 280cc intake runner
New heads are $2399 without the upgraded Comp 921 Springs which are $600+ !!! Asking $1600 for the heads. Located in Chicago area
These heads will work on any 4" bore or larger LS series engine. Must use LS3 compatible (or GM truck) rectangular port intake manifold. Does not come with rocker arms.
The cam used only had .6-teens lift so the springs were not highly stressed by very high lift cam.
- 5 axis CNC machined
- Fully assembled
- Intake Flow Rate 360 CFM
- Exhaust Flow Rate 245 CFM (264 CFM w/ 3/4" Pipe)
- Manley Stainless 2.160 Intake Valves
- Manley Stainless 1.590 exhaust valves
- Comp 921 Valve Spring Kit including Valve Seals, Titanium Retainers, and Locks
- 71cc combustion chamber
- 280cc intake runner
New heads are $2399 without the upgraded Comp 921 Springs which are $600+ !!! Asking $1600 for the heads. Located in Chicago area
Last edited by rkcreative; 05-05-2016 at 11:39 AM.
