Chevrolet Small Block LS-1 / LS-2 (LS-6 Head) Race Flo Intake Valves - Set of 8 by Manley Performance
Pro Flo versions, identified as Race Master and Race Flo valves, are manufactured using XH-426 material for exhaust and NK-842 material for intake. This valve series is targeted at bracket, drag, and oval track racers operating at 8,000 rpm or less. Generally, engine speeds above 8,000 rpm require titanium valves.
Engine builders who have successfully used EV-8 alloy (21-4N) valves will find that this series of Manley valves is an excellent product at a very attractive price. The ultimate tensile strength tables on this and the following pages demonstrate that the Manley Race series is equal to the best offered by competitors.
Features
- Head Diameter: 2.080 inches
- Stem Diameter: 0.3133 inches
- Installed Height: Stock
- O/A Length: 4.874 inches
- Tip Length: 0.175 inches
- Underhead Angle/Radius: Pro Flo 12° x 3/8°
- Margin: 0.050 inches
- Seat Width: 0.095 inches
- Top: 7° dish
- O.E. Style Radius Keeper Groove
- Chrome stems and hard tips
- Swirl polished and fully machined
- NK-842 Stainless Intake Material
Benefits
- Up to 40% flow increase with small-port OE-style cylinder heads
- Proven performance improvements on the flow bench
- Suitable for drag racing and oval track racers operating under 8,000 rpm
Please note: The image provided is generic and may not be an exact representation of the product you will receive.
Applications
- 2004–2005 Cadillac CTS-V
- 1998–2002 Chevrolet Camaro Z28
- 1997–2004 Chevrolet Corvette Base
- 2001–2004 Chevrolet 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 Ordering
〇 About Import Consumption Tax
At Shaft-ya shopping site, we pay 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 Compatibility Confirmation
All product databases are based on North American vehicles (USDM), so please verify compatibility with Japanese vehicles (JDM) before placing your order. (If you are unsure whether the listed product is compatible with your vehicle, please feel free to contact us. Our support team will be happy to look into it 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 model using the tabs on our top page, this does not necessarily mean they will fit Japanese model vehicles without modification.
All product descriptions 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 Shipping
Shipping costs are paid at the time of payment. Shipping estimates are calculated automatically when you enter your shipping address on the checkout page. For large items such as body parts, there may occasionally be a significant discrepancy between the automatically calculated shipping cost and the actual cost. In such cases, we will contact you individually via email.
All products are generally shipped internationally from our U.S. warehouse. Unlike domestic shipping 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 check the delivery time. Please note that all products are transported by air. They will not be shipped by sea freight.
○ Regarding Japanese Vehicle Inspection (Shaken) Compatibility
All products we handle are designed and manufactured outside of Japan. Please be aware that they are not compliant with the "Japanese Vehicle Inspection System," and we cannot provide structural strength documentation for this purpose. 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 check 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 exchanges for products with shipping damage, defective products, or incorrect items if you contact us within 7 days of receipt. Furthermore, for products sold through our company, all warranty-related support will be handled "exclusively through us." Please note that we do not handle correspondence through other third-party companies or agencies located in Japan.