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- Michigan Motorsports Stock Replacement 1.550"...
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Item #:
209484647
Michigan Motorsports Stock Replacement 1.550" LS Exhaust Valves -Fits Cathedral Port 243 799 706 862 317 241 853 806 Heads LS1 LS2 LS6 LQ4 LQ9 LC9
Item #:
209484647
USD 127
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
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Imported from USA store
Order now and get it around Tuesday, August 25
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Built for reliability and long service life, these exhaust valves are a dependable solution for maintaining proper engine performance across a wide range of LS applications.
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What Stands Out
Precision Engineering
Crafted to exacting specifications, these valves ensure optimal sealing and airflow, enhancing engine performance while ensuring reliability under high-stress conditions.
Enhanced Compatibility
Designed to fit a wide range of LS cylinder head models, these valves provide versatility for various LS engine builds, making them a go-to solution for enthusiasts and professionals alike.
Durable Construction
Manufactured from high-quality materials for longevity, these valves resist wear and heat, ensuring sustained performance over time, reducing the need for frequent replacements.
Product Details
| Exterior Finish | Machined |
| Inlet Connection Type | Threaded |
| Outlet Connection Type | NPT |
| Number of Ports | 4 |
| Thread Size | 1.55 inches (3.9 cm) |
| Valve Type | Globe Valve |
| Item Dimensions | 1 x 1 x 1 inches (2.5 x 2.5 x 2.5 cm) |
| Inlet Connection Size | 1.55 Inches (3.9 cm) |
| Outlet Connection Size | 1.55 Inches (3.9 cm) |
| Size | 1.550 inches (3.9 cm) |
| Brand Name | Michigan Motorsports |
| Model Number | MM-1.550STD |
| Manufacturer | Michigan Motorsports |
| Included Components | 1.550"Stock Replacement LS Exhaust Valve |
| Brand | Michigan Motorsports |
| Item dimensions L x W x H | 1 x 1 x 1 inches (2.5 x 2.5 x 2.5 cm) |
| Number of Items | 8 |
Who Should Buy?
-
LS Engine Builders
Ideal for builders looking for reliable replacement valves for their LS engine builds, ensuring optimal performance.
-
Performance Upgrades
Perfect for those upgrading from stock to enhance the exhaust system performance in LS1, LS2, and LS6 engines.
-
Budget Conscious
Great option for enthusiasts needing quality valves without breaking the bank, maintaining performance within a budget.
-
High-Performance Racers
Not suitable for professional racers requiring specialized aftermarket valves for extreme performance and durability.
Product Description
Michigan Motorsports Stock Replacement 1.550" LS Exhaust Valves -Fits Cathedral Port 243 799 706 862 317 241 853 806 Heads LS1 LS2 LS6 LQ4 LQ9 LC9 LMG LM7 (8)
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is the size of the exhaust valve?
Answer: The exhaust valve is standard 1.550 inch. -
Question:
Are these valves compatible with Gen III and Gen IV LS engines?
Answer: Yes, they are designed for cathedral port LS heads commonly used in those engines. -
Question:
Are these valves built for performance applications?
Answer: Yes, they are suitable for mild performance LS engines and daily-driven vehicles.
MichiganMotorsports Exhaust Valves MM-1.550STD Editorial Review
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Pros
- High-quality construction
- Perfect fit for multiple LS heads
- Improves engine performance
- Durable and long-lasting
- Easy installation process
Cons
- Limited color options available.
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23 July 2026 · via Trustpilot
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Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
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USD 127
Order now and get it around Tuesday, August 25
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
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Features & Benefits
- Engineered for standard 1.550 inch exhaust valve sizing.
- Restores factory valvetrain function for daily-driven and performance LS engines.
- Compatible with LS cathedral port cylinder heads in Gen III and Gen IV.
- Maintains OEM-style dimensions for correct valve seating and combustion efficiency.
- Durably constructed to resist exhaust heat and thermal cycling.
- Suitable for various LS engine platforms in cars, trucks, and performance builds.
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