SKU: 1038
GSC P-D Honda B/K/H Series Viton 5.5mm Valve Stem Seal 1988-2015 - Set of 8
Upgrade your Honda B-series, K-series, and H-series engine with GSC Power-Division Viton 5.5mm valve stem seals, sold as a set of 8 for intake or exhaust valves. These seals fit 1988-2001 Civic, Integra, Prelude, and 2002+ RSX, Civic Si models with matching valvetrains. They provide reliable oil metering to keep camshafts clean and maintain peak performance in high-RPM applications.
Key Features
- Viton Construction: Fluorocarbon material withstands 450°F heat without swelling or degrading for consistent sealing over thousands of miles
- 5.5mm Stem Fit: Exact match for B16, B18, H22/H23, K20 valve stems ensuring zero play and leak-free operation
- 7mm Guide OD: Designed for stock and ported valve guides to handle increased oil pressure in modified engines
- Positive Seal Design: Prevents oil burn-off and smoke during spirited driving or track use
- Set of 8 Seals: Covers one bank of valves. order two sets for complete 16-valve DOHC cylinder heads
Product Notes
- Inspect valve guides for wear before installation to ensure longest service life
- Store in cool dry place to preserve Viton compound integrity
- Ships via standard ground in protective bubble wrap envelope
Installation Notes
- Professional installation recommended.
- Use a valve seal driver tool to seat seals evenly without damage
- Compatible with OEM and aftermarket valve springs, retainers, and guides
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1988-1991 | Honda | Civic | EF B16A |
| 1989-1991 | Honda | CRX | SiR B16A |
| 1992-2000 | Honda | Civic | EG/EK B16A/B16B |
| 1994-1997 | Honda | Del Sol | VTEC B16Z |
| 1994-2001 | Acura | Integra | Type R GSR B18C |
| 1993-2001 | Honda | Prelude | Si/SH/VTEC H22A H23A |
| 2002-2006 | Acura | RSX | Type-S/Base K20A2/A3 |
| 2006-2011 | Honda | Civic Si | K20Z2/Z3 |
Why Choose GSC Power-Division?
- Trusted by racers in drag, road race, and time attack for durable valvetrain parts
- Engineered and manufactured for high-boost and high-RPM Honda engines
- Precision tolerances from billet tooling ensure repeatability in every set
Frequently Asked Questions
-
Q: Will these fit my K20A2 RSX Type-S head?
A: Yes, GSC 1038 seals match the 5.5mm stems on all K20/K24 variants including RSX Type-S, Civic Si EP3/FA5, and Accord K24A2 -
Q: How does Viton compare to OEM rubber seals?
A: Viton resists oil additives and temperatures over 400°F far better than stock, reducing smoke and deposits on cams and pistons -
Q: What warranty applies and is pro installation required?
A: Backed by GSC one-year defect warranty. DIY possible with seal tool but shop install avoids guide damage
Shipping & Handling
- Method: Standard ground
- Availability: In stock - ships same or next business day
- Packaging: 6" x 4" x 1" padded envelope
- Weight: 0.15 lbs
Engine
Engine parts and engine bay upgrades for Dodge, Jeep, RAM, Chrysler, Chevrolet, Ford, Toyota, Nissan, Subaru, and Honda vehicles are stocked at Black Ops Auto Works. Shop oil catch cans, supercharger pulleys, thermostats, radiators, cooling parts, throttle bodies, intake manifolds, headers, ignition coils, spark plugs, sensors, gaskets, fuel pumps, valve covers, engine covers, billet cap covers, and full engine bay dress-up parts for HEMI, Hellcat, Trackhawk, Redeye, Demon, Scat Pack, RAM TRX, LS, LT, Coyote, EcoBoost, K-Series, and 2JZ builds. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 14,298 engine SKUs across performance, cooling, oil control, ignition, and appearance categories. What This Category Covers The Engine collection combines OEM-replacement engine service parts with performance aftermarket upgrades for supercharged, turbocharged, and naturally aspirated builds...
View Engine Products
GSC Power Division
GSC Power Division camshafts and valvetrain parts for turbocharged import engines are stocked at Black Ops Auto Works. Shop camshafts, valve springs, retainers, valves, and head studs engineered for the Toyota 2JZ, Nissan RB26 and VR38DETT, Mitsubishi 4G63, Subaru EJ257 and FA20, and Honda K20 platforms. Every product is filterable by engine code, cam grind, and application so the correct part ships the first time. Black Ops Auto Works carries 407 GSC Power Division SKUs across camshaft, valvetrain, and engine internal categories. What This Brand Covers GSC Power Division is a specialist engine internals brand focused on camshafts, valve springs, retainers, and valves engineered specifically for high output turbocharged import engines. The catalog is built around specific engine codes rather than complete vehicles, which means the same part often applies across multiple chassis that share an engine platform. Brand Focus GSC Power Division designs valvetrain components for engine...
View GSC Power Division Products
Valve Seals
Valve Seals parts and accessories are stocked at Black Ops Auto Works for enthusiasts and shops building reliable street, truck, off-road, and performance vehicles. Shop valve stem seals, Viton positive seals, umbrella seals, intake valve seals, exhaust valve seals, integrated spring-seat seals, metal-body seals, rebuild sets, and cylinder-head service parts for Hemi, Coyote, Evo, Subaru, BMW, Toyota, Nissan, and Honda engines. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 89 Valve Seals SKUs across valve stem diameter, seal material, intake and exhaust, spring-seat, and engine-specific rebuild applications. What Valve Seals Do Control oil at the valve stem Valve stem seals meter oil between the valve stem and guide. Worn seals can contribute to oil consumption, smoke after deceleration, fouled plugs, and carbon buildup. Viton and Positive Valve Seals Material must suit the ap...
View Valve Seals Products
Valves & Components
Valves and valvetrain components for import, domestic, and performance engine platforms are stocked at Black Ops Auto Works. Shop intake valves, exhaust valves, valve covers, valve cover gaskets, valve guides, valve springs, retainers, valve locks, valve seals, and lash caps for Toyota 2JZ and Supra, Honda K-Series, Nissan RB and SR20, BMW B58 and S58, Subaru FA20, Ford Coyote, and GM LS platforms. Every part is filterable by year, make, model, and engine so builders and tuners can confirm fitment before ordering. Black Ops Auto Works carries 1,391 valvetrain SKUs from proven performance brands. What This Category Covers Valves and valvetrain components manage airflow into and out of the combustion chamber and keep the valvetrain sealed and stable at high RPM. This collection spans intake valves, exhaust valves, valve covers, valve cover gaskets, valve guides, valve springs, retainers, valve locks, valve seals, lash caps, and cam follower shims. Why the Valvetrain Matters for Pe...
View Valves & Components Products


