Small Block Chevy Race Flo Exhaust Valves - Manley Performance Set of 8
The Race Master, and the Pro Flo version identified as Race Flo valves, are manufactured from 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 8000 rpm or less. Generally, engine speeds above 8000 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 a most attractive price. The ultimate tensile strength charts on this page and the following page demonstrate that the Manley Race series is equal to the best offered by the competition.
Features
- Head Diameter: 1.500"
- Stem Diameter: 0.3415"
- Installed Height: Stock
- O/A Length: 4.911"
- Tip Length: 0.250"
- Underhead Angle/Radius: Pro Flo 12° x 3/8°
- Margin: 0.060"
- Seat Width: 0.100"
- Top: 7° Dish
- Swirl Polished and Fully Machined
- XH-426 Stainless Exhaust Material
- Chrome Stems and Hard Tips
Benefits
- Recommended exhaust valve for alcohol engines
- Up to 40% flow increase in small port OE style cylinder heads
- Flow bench proven performance gains
Please note: The images provided are generic and may not be an exact representation of the product you 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 the nature of their intended use.
Before Ordering
〇 Regarding 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 other than the total amount paid at checkout.
〇Confirmation of Compatibility
Since all product databases are based on North American vehicles (USDM), please confirm 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 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, it 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 Shipping
Shipping costs will be 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 shipping 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 in Japan, international shipping takes about 7 to 14 days, so please order with sufficient time. 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 are not shipped by sea.
○ Regarding Japanese Vehicle Inspection (Shaken) Compatibility
Please note that all products we handle are designed and manufactured outside of Japan, are not adapted to the "Japanese Vehicle Inspection System," and we cannot issue strength calculation documents or similar paperwork for the Japanese inspection 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. Since all products are shipped internationally from outside Japan, there may be shipping damage to the packing box or the product. We will only provide returns, refunds, or replacement exchanges for items with shipping damage, defective products, or items different from what was ordered if contacted within 7 days of receipt. Please understand that for products sold through us, warranty support will be provided "only through us." We do not provide support through other companies or distributors located in Japan.