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 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 or below 8000 rpm. Generally, engine speeds above 8000 rpm require titanium valves.
Engine builders successfully using EV-8 alloy (21-4N) valves will find that this series of Manley valves offers a superior product at a very attractive price. The ultimate tensile strength charts on this and the following pages demonstrate that the Manley Race series is equal to the best offered by any competitor.
Features
- Head Diameter: 2.080"
- Stem Diameter: 0.3133"
- Installed Height: Stock
- O/A Length: 4.874"
- Tip Length: 0.175"
- Underhead Angle/Radius: Pro Flo 12° x 3/8°
- Margin: 0.050"
- Seat Width: 0.095"
- Head 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% increase in flow on small-port OE style cylinder heads
- Flow bench proven performance gains
- Suitable for drag racing 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 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 other than the total amount paid at checkout.
〇Confirmation of Compatibility
As all product databases are based on North American vehicles (USDM), please confirm the compatibility for 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 check 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 in the tabs on our top page, this does not necessarily guarantee fitment on 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 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, there are rare cases where there is a significant difference between the automatically calculated shipping cost and the actual cost. In such cases, we will contact you individually via email.
In principle, all products are shipped internationally from our US warehouse. Unlike domestic shipping in Japan, international shipping takes about 7 to 14 days, so please allow plenty of time for your order. If you are in a hurry, please contact us in advance to confirm the delivery date. All products are transported via air freight. They are not shipped via sea freight.
○ Regarding Japanese Vehicle Inspection (Shaken) Compatibility
Basically, all products we handle are designed and manufactured outside of Japan. Please note that they are not compliant with "Japanese vehicle inspection standards," and we cannot provide strength calculation documents for such inspections. 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 packaging boxes or the products themselves. Please understand that we will only provide returns, refunds, or replacement exchanges for products with shipping damage, defective products, or incorrect items if you contact us within 7 days of receipt. Regarding products sold through our company, all warranty-related matters must be handled "exclusively through us." Please note that we do not handle matters through other companies or distributors located in Japan.