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SKU: HIVN-1001-8 / UPC: 01037721244691
Supertech Black Nitrided Intake Valves for Honda B16A and B18C Engines - +1mm Oversize Set of 8
The Supertech Black Nitrided Intake Valves in +1mm oversize configuration. This set delivers consistent power gains through enhanced airflow and reduced valvetrain wear, making it the direct choice for enthusiasts building reliable high-revving setups. Compared to standard valves, the black nitride finish cuts friction by up to 50%, extends service life in demanding conditions, and maintains tight tolerances under extreme heat—ideal for track days or daily driven performance builds where every cylinder counts.
Key Specifications
- Material: One-piece forged stainless steel 21-4N with black nitride surface treatment for corrosion resistance and fatigue strength.
- Head Diameter: 34.00mm (+1.00mm oversize from stock 33.00mm).
- Stem Diameter: 5.48mm.
- Overall Length: 102.50mm.
- Valve Face Design: Dished profile for optimized combustion chamber clearance and flow dynamics.
- Groove Type: Single bevel groove for secure keeper retention.
- Additional Features: Hardened tip for reduced guide wear; integrated swirlers on the intake side to promote fuel atomization and cylinder filling efficiency; precision machined for drop-in compatibility without modifications.
These valves outperform alternatives by handling boost levels up to 25 psi and revs beyond 9,000 RPM without flexing or galling, based on dyno-tested results in B-series builds. The nitride layer bonds at a molecular level, preventing flaking during impacts, while the dished face ensures even heat distribution to avoid hot spots.
Vehicle Fitment
Engineered specifically for Honda B-series VTEC engines, this set fits the following models and years:
- Honda Civic (1992-2000): Si models with B16A engine; compatible with EG/EK chassis VTEC swaps.
- Honda Del Sol (1993-1997): VTEC (B16A) variants.
- Acura Integra (1994-2001): GS-R (B18C1) and Type R (B18C5) models; DC2 chassis.
Confirm your engine code (B16A, B16B, B18C1, or B18C5) matches for seamless installation. Not intended for non-VTEC B-series variants.
What's Included in Your Purchase
- (8) Black Nitrided Intake Valves, part number HIVN-1001-8.
- Individual protective packaging for each valve to prevent damage during transit.
- No additional hardware required—direct replacement for OEM intake valves.
Packaging and Shipping Details
- Part Weight: Approximately 1.2 lbs (total set weight).
- Shipping Box Dimensions: 6.20 inches (width) x 2.30 inches (height) x 6.80 inches (depth).
- UPC: 01037721244691.
- SKU: HIVN-1001-8.
This complete set arrives ready for your next valvetrain refresh, ensuring your B16A or B18C runs smoother and stronger than stock configurations. Search no further for "Supertech black nitrided intake valves Honda B16A B18C +1mm oversize" this is the proven solution for lasting performance in your build.
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