Small Block Chevy Race Master Intake Valve - Single by Manley Performance
Race Master, and the Pro Flo version identified as Race Flo valves, are manufactured from XH-426 material. NK-842 is used for the exhaust and NK-842 for the intake. This series of valves is intended for bracket, drag, and oval track racers. Under 8000 rpm - titanium valves are used at higher engine speeds and are usually required.
Engine builders using the normal EV-8 alloy (21-4N) valves will find that this series from Manley valves offers an excellent product at a very attractive price. The ultimate tensile strength tables on this page and the next show that the Manley Race series is equal to the best that past competitors have to offer.
Features
- Head Diameter: 1.940 inches
- Stem Diameter: 0.3110 inches
- Installed Height: .100 longer
- O/A Length: 5.010 inches
- Tip Length: 0.290 inches
- Underhead Angle/Radius: 10° x 3/8°
- Margin: 0.050 inches
- Seat Width: 0.080 inches
- Top of Head: 5° Dish
- Thin stem for increased flow and reduced weight
- NK-842 stainless steel intake material
- Chrome stems and hardened tips
- Swirl polished and fully machined
Benefits
- No need to insert tips or wear caps
- Suitable for drag racing and oval track racers. Under 8000 rpm
Please note: These .311 stem valves are only available with Bead Loc® keeper grooves. Bead Loc® valve locks are required.
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?
- 1 - Valve
Warranty
- Due to the nature of their intended use, Manley products are sold without warranty.
Before Ordering
〇 About Import Consumption Tax
At the Shaftoya shopping site, we pay the import consumption tax incurred upon importation on your behalf, so there will be no additional charges beyond the total amount paid at checkout.
〇Checking Compatibility
Since all product databases are based on North American vehicles (USDM), please check whether the parts can be installed on Japanese vehicles (JDM) before ordering. (If you are unsure if a listed product is compatible with your vehicle, please feel free to contact us. Our support team will be happy to look it up 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 that they will fit Japanese models 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 Shipping
Shipping costs are paid at the time of settlement. An estimate for shipping costs will be automatically calculated 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.
Basically, all products are shipped internationally from our US warehouse. Unlike domestic shipping within Japan, international shipping takes about 7 to 14 days, so please order with time to spare. If you are in a hurry, please contact us in advance to confirm delivery times. Furthermore, all products are transported by air. They will not be shipped by sea.
○ Regarding Japanese Vehicle Inspection (Shaken) Compatibility
Please be aware that the products we handle are basically all designed and manufactured outside of Japan. They are not compliant with the "Japanese vehicle inspection system" (Shaken), and we cannot provide strength evaluation documents or the like for this system. 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. As all products are shipped internationally from outside Japan, there may be shipping damage to the packaging or the product. Please understand that we will only provide returns, refunds, or replacement products if you contact us within 7 days of receipt regarding damaged, defective, or incorrect items. Please also note that for products sold through us, we will only handle warranty-related matters "through us." We do not handle matters through other companies or agents located within Japan.