Manley Performance Race Master Exhaust Valves - Set of 8
The Race Master, along with the Pro Flo version identified as Race Flo valves, are manufactured from XH-426 material for exhaust and NK-842 material for intake. This series of valves is intended for bracket, drag, and oval track racers operating at 8000 rpm or less. Generally, engine speeds higher than that require titanium valves. Any engine builder who has successfully used EV-8 alloy (21-4N) valves will find that this series of Manley valves is an excellent product at a most attractive price. The ultimate tensile strength tables on this page and the next show that the Manley Race series is equal to the best offered by the competition.
Specifications
- Head Diameter: 28.0mm
- Stem Diameter: 5.46mm / .2150"
- O/A Length: 102.70mm
- Tip Length: 2.5mm
- Underhead Angle/Radius: 25° x 11/32°
- Margin: 0.065"
- Seat Width: 0.080"
- Top: 20° Dish
- Chrome stems and hard tips
- Swirl polished and fully machined
- XH-426 stainless exhaust material
Benefits
- Ideal for drag racing and oval track racers operating under 8,000 rpm. Generally, engine speeds higher than that require titanium valves
- Equal to the best offered by the competition
Please note: The provided image is generic and may not be an exact representation of the product you will receive.
Applications
- 1992–2001 Acura Integra GS-R
- 1999–2000 Honda Civic Si
- 1994–1997 Honda Civic del Sol VTEC
What's in the box?
- 8 - Valves
Warranty
- Due to the nature of their intended use, Manley products are sold without warranty.
Before you order
〇Regarding import consumption tax
At the Shafutoya shopping site, we pay the import consumption tax incurred at the time of import on your behalf, so there are no additional charges beyond the total amount paid at checkout.
〇Confirmation of compatibility
All product databases are based on North American vehicles (USDM), so please check whether they can be installed on Japanese vehicles (JDM) before ordering. (If you are unsure whether a listed product is compatible with your vehicle, please feel free to contact us. Our support team will be happy to check for you.)
If you order without confirming compatibility, we cannot accept returns due to incompatibility.
Please note that even if products are sorted by selecting the year, manufacturer, and vehicle model in the tabs on our top page, this does not necessarily mean they will fit Japanese model vehicles without modification.
All products have been translated into Japanese using translation software. As there may be confusing expressions, please contact us before ordering if you have any questions.
○Regarding delivery
Shipping costs are paid at the time of checkout. Shipping estimates are calculated automatically when you enter your shipping address on the checkout page. For large items such as body parts, the automatically calculated shipping cost may occasionally differ significantly from the actual cost. In such cases, we will contact you individually by email.
In principle, all products are shipped internationally from our US warehouse. Unlike domestic Japanese delivery, international delivery takes approximately 7 to 14 days, so please allow yourself plenty of time when ordering. If you are in a hurry, please contact us in advance to check the delivery date. Note that all products are transported by air freight. They are never shipped by sea freight.
○Regarding compliance with Japanese vehicle inspection (Shaken)
The products we carry are basically all designed and manufactured outside of Japan. Please understand that they do not comply with the "Japanese vehicle inspection system" in any way, and we cannot provide strength calculation documents for that purpose. Therefore, all parts are sold for the purpose of "use on circuits, private land, or off-road," and installation and use are at your own risk.
○Regarding warranty
Please check the contents immediately upon arrival of the product. Since all products are shipped internationally from outside Japan, the packaging box or the product itself may sustain delivery damage. Please understand that we will only provide returns, refunds, or replacement products if you contact us within 7 days of receipt regarding products with delivery damage, defective products, or products different from what you ordered. Furthermore, regarding products sold through us, we will only handle warranty-related issues "through us." Please note that we do not handle matters through other companies or distributors located within Japan.