GSC Intake Valve Guide – Honda K20C1 CTR – Standard – Single – GSC3120
Precision-fit guide for high-performance K-series head service
This standard-size intake valve guide from GSC Power Division is built for Honda K20C1 CTR engines, offering consistent valve control and long-term durability. Sold individually or in sets of 8 for full head rebuilds. Oversize options (+0.001" and +0.003") available separately for custom clearance needs.
Specs – GSC3120 Standard Dimensions:
- Total Length: 1.870 in / 47.50 mm
- Outer Diameter: 0.4357 in / 11.07 mm
- Valve Stem Diameter: 5.5mm
Compatible with Honda Civic Type R models equipped with the K20C1 engine. Ideal for precision head work and performance tuning.
Fitment:
- 2015 Honda Civic Type R (FK2)
- 2016 Honda Civic Type R (FK2)
- 2017 Honda Civic Type R (FK8)
- 2018 Honda Civic Type R (FK8)
- 2019 Honda Civic Type R (FK8)
- 2020 Honda Civic Type R (FK8)
- 2021 Honda Civic Type R (FK8)
- 2023 Honda Civic Type R (FL5)
- 2024 Honda Civic Type R (FL5)
- 2025 Honda Civic Type R (FL5)
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

