Small Block Chevy LS-1 / LS-2 (LS-6 Heads) Race Master Exhaust Valves - Set of 8 by Manley Performance
Race Master, and the Pro Flo version identified as Race Flo valves, are manufactured with 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 above 8000 rpm 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 the 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 any competitor.
Features
- Head Diameter: 1.600"
- Stem Diameter: 0.3136"
- Installed Height: Stock
- O/A Length: 4.923"
- Tip Length: 0.175"
- Underhead Angle/Radius: 25° x 7/16°
- Margin: 0.065"
- Seat Width: 0.115"
- Top: 18° Dish
- Swirl Polished and Fully Machined
- XH-426 Stainless Steel
- Chrome Stems and Hard Tips
Benefits
- Recommended exhaust valve for alcohol engines
- Suitable for drag track and oval track racers operating under 8,000 rpm
Please note: The images provided are generic and may not be an exact representation of the product you will receive.
Applications
- 2004-2005 Cadillac CTS-V
- 1998-2002 Chevy Camaro Z28
- 1997-2004 Chevy Corvette Base
- 2001-2004 Chevy Corvette Z06
- 1998-2002 Pontiac Firebird Formula
- 2004 Pontiac GTO Base
What's in the box?
- 8 - Valves
Warranty
- Manley products are sold without warranty due to their intended use.
Before You Order
〇 Regarding Import Taxes
At Shaftoya Shopping Site, we cover the import consumption tax incurred at the time of import on your behalf, so there will be no additional charges beyond the total amount paid at checkout.
〇 Confirmation of Fitment
All product databases are based on North American vehicles (USDM), so please check the compatibility with Japanese vehicles (JDM) before ordering. (If you are unsure whether the listed product is compatible with your vehicle, please feel free to contact us. Our support team will investigate for you.)
If you place an 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 using 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. There may be confusing expressions, so please contact us before ordering if you have any questions.
○ Regarding Delivery
Shipping costs are paid at the time of checkout. Shipping estimates are automatically calculated when you enter your shipping address on the checkout page. For large items such as body parts, the actual shipping cost may occasionally differ significantly from the amount calculated automatically. In such cases, we will contact you via email individually.
Essentially, all products are shipped internationally from our US warehouse. Unlike domestic delivery within Japan, international shipping takes about 7 to 14 days, so please allow yourself enough time when ordering. If you are in a hurry, please contact us in advance to confirm delivery times. Note that all products are transported by air; they are not shipped by sea.
○ Regarding Japanese Vehicle Inspection (Shaken) Compatibility
All products we carry are generally designed and manufactured outside of Japan. Please understand that they do not conform to the "Japanese Vehicle Inspection System," and we are unable to provide strength calculation documents or similar paperwork for these requirements. Therefore, all parts are sold for the purpose of "use on circuits, private property, or off-road," and installation and use are at your own risk.
○ Regarding Warranty
Please inspect the contents immediately upon arrival. Since all products are shipped internationally from outside Japan, there may be damage to the packaging or the product due to shipping. Please understand that we will only provide returns, refunds, or replacement exchanges for items with shipping damage, defective products, or incorrect items if you contact us within 7 days of receipt. Additionally, for products sold through us, warranty-related support will be handled "exclusively through us." Please be aware that we do not provide support through other companies or distributors located within Japan.