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- Product Description
- Fitment
- Delivery & Returns
- Reviews
BLOX Racing Exhaust Valve Set - Flat, 30mm - K20-K24 is the BLOX Racing product identified by manufacturer part number BXPT-20203. Use the complete part number when checking application, finish, size and pack quantity.
Verified product identity
- Manufacturer: BLOX Racing
- Manufacturer part number: BXPT-20203
- Supplier catalogue description: Exhaust Valve Set - Flat, 30mm - K20-K24
- Supplier catalogue family: K-SERIES DOHC i-VTEC (K20A-K24A)
- Listed shipping weight: 1.0 lb
- Listed package dimensions: 6x5x3 in
Application and specification note
Set of 8 - Stock Size
Product details
BLOX Racing high compression standard size valves are forged from EV8 stainless steel. Each valve then undergoes a heat treatment process to increase strength then coated using black nitride to provide superior wear resistance and minimize power-robbing friction.
Black nitride provides the valve head with superior protection against wear and corrosion and greatly reduces the amount of friction between the valve stem and guide. The less friction produced the more power gained! BLOX Racing valves are specially designed to increase intake and exhaust airflow through the cylinder head.
BLOX Racing valves are specially designed to increase intake and exhaust airflow through the cylinder heard. BLOX Racing valves increase compression by approximately 0.3 points.
For best results, use with BLOX Racing valve springs and Ti retainers.
Set includes 8 x exhaust valves.
Specs
- Head Diam: 30.00mm (std)
- Stem Diam: 5.45mm
- Length: 108.65mm
- Material: Black Nitride
- Valve Type: Exhaust
Fitment
- K20A-K24A
Before ordering
Match the full SKU, dimensions, thread or bore size, finish, vehicle application and pack quantity to the intended installation. Where an application is vehicle-specific, confirm model year, engine, transmission, body style and any stated exclusions. Universal does not mean suitable for every installation; available space, interfaces and supporting components still require checking.
Installation and use
Follow current manufacturer and vehicle service information. Performance, braking, suspension, fuel, steering and safety-related components should be installed and checked by a suitably experienced person. Confirm required companion parts, settings, clearances and local road-use requirements before installation.
Evidence record
Identity and supplier catalogue details were reconciled by exact part number BXPT-20203 against the supplied BLOX Racing 2026 price workbook and/or official Shopify-format supplier data file on 30 August 2026. UK VAT-inclusive retail, current stock, media rights, structured vehicle fitment and market-specific approval remain separate verification gates unless explicitly stated above.
Dispatch times vary depending on product availability. Available-to-order items may have extended lead times; contact us before ordering if timing is important. Returns are subject to our Returns Policy. Cancellation exceptions may apply to genuinely made-to-order or clearly personalised goods. Electrical or special-order status alone does not exclude cancellation. Your rights for faulty, incorrect or misdescribed goods remain unaffected. See our Returns Policy for details.
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