06-11 Civic Si GSC Valve Train Components

When GSC set out to create the best performing and longest lasting valves available, they knew they would need to turn to the cutting edge of design technology. All GSC Power-Division performance valves are created with advance 3D design and simulation programs, resulting in a stronger and higher flowing valve head concept. All prototype valves are precision tested against the competition to ensure the highest performing design available. Higher quality materials mean less head distortion for better sealing under extreme conditions and more consistent performance through the life of the valve.
- Features:
- Swirl polished heads
- Back cut for added weight reduction at high rpms
- Micropolished valve stems for less drag and smoother motion
- Fully nitrated for a reduction in carbon buildup
- 21-4n stainless intake valve material
- 23-8n stainless exhaust valve material
- Compatible with OEM keepers/locks
- FITMENT:
- Honda Civic Si 2006-2011
| Description | Part # | MSRP | Price | Inventory | |
|---|---|---|---|---|---|
| 30mm (STD) Exhaust Valves - Set of 8 | 2041-8 | $131.77 | $114.58 | 3 available | |
| 35mm (STD) Intake Valves - Set of 8 | 2042-8 | $132.94 | $115.60 | 3 available | |
| 31mm (+1mm) Exhaust Valves - Set of 8 | 2043-8 | $131.77 | $114.58 | 2 available | |
| 36mm (+1mm) Intake Valves - Set of 8 | 2044-8 | $132.94 | $115.60 | 2 available |
GSC Power-Division Viton Valve Stem Seals for the 06-11 Civic Si K-Series Engines include the entire 5.5mm valve size seal set (8 intake and 8 Exhaust)so you will have no guess-work when it comes to installation. These stem seals are an upgrade from the standard OEM material to help cope with the higher heat caused by high performance K-series engines.
- Note:
- Full set includes 8 intake and 8 exhaust stem seals
- FITMENT:
- Honda Civic Si 2006-2011
| Description | Part # | MSRP | Price | Inventory | |
|---|---|---|---|---|---|
| GSC Valve Stem Seals | 1040 | $10.75 | $9.35 | 2 available |



