Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Your cart
-
0-9
-
A
-
B
-
R
-
S
Manley Performance
Manley Race Master 1.590in Exhaust Valves for Chevrolet LT1 (Set of 8) (6.2L) 12345-8
This product will be available for sale in 2 weeks, but you can pre-order now to receive 10% discount!
Fits Chevrolet LT1 engines (6.2L).
Manley Race Master series exhaust valves are specifically engineered for the high-load environments of bracket, drag, and oval track racing. Designed for engines operating at or below 8,000 RPM, these valves are built to withstand the extreme thermal demands of racing, making them the recommended choice for alcohol-fueled engines. Each valve is manufactured from XH-426 stainless steel for maximum durability and resistance to high combustion temperatures.
To maximize airflow and improve combustion efficiency, these valves feature swirl-polished under-head areas and fully machined combustion faces. The Race Master profile uses a straight stem design for consistent strength and stability. To ensure longevity and reduce friction, Manley incorporates chrome-plated stems and hardened tips to resist wear in demanding valvetrain configurations.
- Head Diameter: 1.590in
- Material: XH-426 Stainless Steel
- Stem Type: Race Master (Straight Stem)
- Finish: Swirl polished under-head with chrome stems and hard tips
- Quantity: Set of 8
- Manufacturer Part Number: 12345-8
Choose your Location
-
Atlus
1340 Cobb Dr, Unit 1, Eustis, FL 32736
352-234-4458
Mon – Fri: 8:30 am – 4:30 pm
Sat: 9:00 am – 2:00 pm
Sun: Closed
Product Comparison
How they are Different
|
__ __ |
|
|---|---|
| Description |
Description - __ |
| Rating |
Rating - __ |
| Vendor |
Vendor - __ |
| Color |
Color - __ |
|
|
Compare products ( / )
The Atlus Price Guarantee
If you can find the part for a lower price from an authorized dealer/shop, we'll match the price! Reach out to Hello@AtlusAuto.com, our live chat located at the bottom right of your screen, or request an Atlas Price Guarantee, or visit our dedicated APG page to submit a request.
Manley Race Master 1.590in Exhaust Valves for Chevrolet LT1 (Set of 8) (6.2L) 12345-8
This product will be available soon, but you can pre-order now to get on the list before others!
US Based Support - In Florida
30 Days Satisfaction Guarantee
Price Match
Our prices are updated daily to ensure we can offer you the best possible price. In the unlikely case that you have found a lower price, please contact us at hello@atlusauto.com and we'll do our best to answer your query right away!
Easy Financing
We've partnered up with Affirm/Shop!
Why use Affirm/Shop?
- Clear application process
- Friendly support team
- Spread a big payment interest-free
- Ability to buy what you want
How does it work?
- Add your purchase to cart
- Select Shop Payments at checkout
- Complete the application
- Compare any available finance options
Share:
Fits Chevrolet LT1 engines (6.2L).
Manley Race Master series exhaust valves are specifically engineered for the high-load environments of bracket, drag, and oval track racing. Designed for engines operating at or below 8,000 RPM, these valves are built to withstand the extreme thermal demands of racing, making them the recommended choice for alcohol-fueled engines. Each valve is manufactured from XH-426 stainless steel for maximum durability and resistance to high combustion temperatures.
To maximize airflow and improve combustion efficiency, these valves feature swirl-polished under-head areas and fully machined combustion faces. The Race Master profile uses a straight stem design for consistent strength and stability. To ensure longevity and reduce friction, Manley incorporates chrome-plated stems and hardened tips to resist wear in demanding valvetrain configurations.
- Head Diameter: 1.590in
- Material: XH-426 Stainless Steel
- Stem Type: Race Master (Straight Stem)
- Finish: Swirl polished under-head with chrome stems and hard tips
- Quantity: Set of 8
- Manufacturer Part Number: 12345-8
Authencity Guaranteed
We only sell authentic products from verified brand partners and retail partners globally.
Can’t Find the Part You Need?
Our catalog represents only a portion of the automotive products available through our supplier network. If you cannot find a specific part, brand, or application on our website, submit a request below, and our team will help source it for you.
Please include as much information as possible, such as your vehicle's year, make, model, trim, engine, desired brand, or part number, to help us quickly identify the correct product.
- Choosing a selection results in a full page refresh.
- Opens in a new window.
