Small Block Chevy Race Flo Intake Valves - Set of 8 by Manley Performance
The Pro Flo version, identified as Race Master and Race Flo valves, is manufactured using XH-426 material for exhaust and NK-842 material for intake. This valve series is intended for bracket, drag, and oval track racers operating at 8,000 rpm or below. Generally, engine speeds above 8,000 rpm require titanium valves.
Engine builders who successfully use 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 charts on this and the next page demonstrate that the Manley Race series is equal to the best offered by competitors.
Features
- Head Diameter: 1.840 inches
- Stem Diameter: 0.3415 inches
- Installed Height: .100 longer
- O/A Length: 4.911 inches
- Tip Length: 0.250 inches
- Underhead Angle/Radius: Pro Flo 10° x 3/8°
- Margin: 0.060 inches
- Seat Width: 0.080 inches
- Top: 5° dish
- Swirl polished and fully machined
- NK-842 stainless intake material
- Chrome stems and hard tips
Benefits
- Suitable for drag track and oval track racers operating under 8,000 rpm
- Flow increase of up to 40% with small port OE-style cylinder heads
- Proven performance improvements on the flow bench
Please note: The images provided are generic and may not be an exact representation of the product you will receive.
Applications
- 2004–2007 Cadillac CTS-V
- 2007–2008 Cadillac Escalade Base
- 2007–2008 Cadillac Escalade ESV Base
- 2008 Cadillac Escalade ESV Platinum
- 2007–2008 Cadillac Escalade EXT Base
- 1998–2002 Chevrolet Camaro Z28
- 1997–2008 Chevrolet Corvette Base
- 2001–2004 Chevrolet Corvette Z06
- 2005–2006 Chevrolet SSR Base
- 2006–2008 Chevrolet Trailblazer SS
- 2007–2008 GMC Yukon Denali
- 2007–2008 GMC Yukon XL 1500 Denali
- 2008 Hummer H2 Base
- 1998–2002 Pontiac Firebird Formula
- 2004–2006 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 Regarding Import Consumption Tax
At Shaftoya 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 Checking Compatibility
As all product databases are based on North American vehicles (USDM), please check 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 order without confirming compatibility, we cannot accept returns due to incompatibility.
Please note that even if items 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 are 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 settlement. For shipping estimates, they will be calculated automatically once 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 shipping cost. In such cases, we will contact you individually via email.
All products are generally shipped internationally from our US warehouse. Unlike domestic shipping within Japan, international shipping takes about 7 to 14 days, so please allow plenty of time when ordering. If you are in a hurry, please contact us to check the delivery date in advance. All products are transported via air freight. They are not shipped via sea freight.
○ Regarding Japanese Vehicle Inspection (Shaken) Compatibility
Essentially, all products we handle are designed and manufactured outside of Japan. Please note that they do not comply with the "Japanese Vehicle Inspection System," and we cannot provide documents such as strength calculation reports for the Japanese inspection system. 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 shipping damage to the packaging or the product. We will only provide returns, refunds, or replacement exchanges for items with shipping damage, defective products, or items different from what you ordered if you contact us within 7 days of receipt. Please understand that for products sold through us, warranty support will be provided "only through us." Please note that we do not handle support through other companies or distributors located within Japan.