LSX CYLINDER HEADS
19201807
LSX-L92 SMALL-BORE CYLINDER HEAD
- LS3/L92 Port Configuration
- “As-cast” runners and combustion chamber
- 15° valve angle
- Assembled with 2.00" intake and 1.55" exhaust valves
- 250-cc intake port and 80-cc exhaust port
- 70-cc combustion chamber
- Intake flow – 280 cfm @ .600" lift /
Exhaust flow – 180 cfm @ .700" lift - Beehive valve springs
- Uses LS3-/L92-style rocker arms (offset)
- 3.890" minimum bore size
- Uses LS3-/L92-style intake manifold
19354243
LSX-LS3 CYLINDER HEAD
- L92-style rectangle port design
- Assembled with 2.165" hollow-stem intake and 1.590" solid-stem exhaust valves
- 15° valve angle; minimum 4.000" bore
- 260-cc “as-cast” intake ports, 80-cc “as-cast” exhaust ports
- 70-cc “as-cast” combustion chambers
- Uses LS3 rocker arms/LS7 bolts
19354242
LSX-LS7 CNC-PORTED BARE CYLINDER HEAD
- Fully CNC-ported
- 6-bolt-per-cylinder bolt pattern
- LS7-style rectangle port design
- 12° valve angle; minimum 4.100" bore
- 70-cc “as-cast” combustion chambers
- Uses LS7 rocker arms/LS7 bolts
- 397 cfm@0.700" intake, 230 cfm @ 0.700" exhaust
19354241
LSX-LS7 CNC-PORTED CYLINDER HEAD ASSEMBLY
- Fully CNC-ported
- 6-bolt-per-cylinder bolt pattern
- LS7-style rectangle port design
- Assembled with 2.200" titanium intake and 1.610" sodium-filled exhaust valves
- 12° valve angle; minimum 4.100" bore
- 70-cc “as-cast” combustion chambers
- Handles .650" lift with premium springs
- Uses LS7 rocker arms/LS7 bolts
- Uses P/N 19257879 bare head (shown)
- 397 cfm @ 0.700" intake, 230 cfm @ 0.700" exhaust
19354239
LSX-LS7 CYLINDER HEAD ASSEMBLY – AS CAST
- 6-bolt-per-cylinder bolt pattern
- LS7-style rectangle port design
- Assembled with 2.200" titanium intake and 1.610" sodium-filled exhaust valves
- 12° valve angle; minimum 4.100" bore
- 270-cc “as-cast” intake ports, 85-cc “as-cast” exhaust ports
- 70-cc “as-cast” combustion chambers
- Handles .650" list with premium springs
- Uses LS7 rocker arms/LS7 bolts
19354240
LSX-LS7 BARE CYLINDER HEAD – AS CAST
- Used in P/N 19201806
19354244
LSX-LS9 CYLINDER HEAD ASSEMBLY
- L92-style rectangle port design
- Assembled with 2.165" titanium intake and 1.590" sodium-filled exhaust valves
- 15° valve angle; minimum 4.000" bore
- 260-cc “as-cast” intake ports, 80-cc “as-cast” exhaust ports
- 70-cc “as-cast” combustion chambers
- Uses LS3 rocker arms/LS7 bolts
19417408
LSX-SC BARE CYLINDER HEAD – AS-CAST
- Made of A356 aluminum with low-pressure casting and Hot Isostatic Pressing for enhanced strength and material density
- Un-ported casting with smaller water jackets to accommodate additional porting and machining.
- Valve seats and valve guides included, but delivered uninstalled
19417887
LSX-SC BARE CYLINDER HEAD – CNC-MACHINED
- Made of A356 aluminum with low-pressure casting and Hot Isostatic Pressing for enhanced strength and material density
- CNC-machined intake and exhaust ports
- CNC-machined combustion chambers
- Includes valve seats and valve guides installed
19417888
LSX-SC ASSEMBLED CYLINDER HEAD – CNC-MACHINED
- Made of A356 aluminum with low-pressure casting and Hot Isostatic Pressing for enhanced strength and material density
- CNC-machined intake and exhaust ports
- CNC-machined combustion chambers
- Includes valve seats and valve guides installed
- Valve seats and guides designed to accommodate 2.20" (intake) and 1.6". (exhaust) valves
- Assembled head includes 2.20" intake and 1.61" valves and beehive-type valve springs (including retainers and keepers) installed
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