★★★★★ 5
Good
Good
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Reviewed in the United States on April 27, 2026
1000hp 6.2L LS Supercharged Crate Engine
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
1000hp 6.2L LS Supercharged Crate EngineGM Performance Crate Engine Package w Magnuson Supercharger A high performance GM B15 setup, fully upgraded for serious power and reliability. This build has been topped with a Magnuson 2650 supercharger for big boost potential, complemented by FIC 1000cc fuel injectors to support maximum fueling under boost. Airflow is optimized with a massive Nick Williams 120mm throttle body, ensuring the engine breathes effortlessly for peak horsepower. Whether
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Your 1000hp 6.2L LS Supercharged Crate Engine orders ship within 1-2 business days.
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- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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4.4 ★★★★★
Based on 1059 reviews
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Product Reviews
★★★★★ 5
Works as it should
Works as it should
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 24, 2026
★★★★★ 4
Four Stars
Just what I needed
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Reviewed in the United States on October 14, 2016
★★★★★ 5
Functioned as advertized.
Installed these in my Whalers 96 200 Offshore. No issues, used permatex gasket compound on aluminum engine parts after cleaning with fine brass wire wheel.
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Reviewed in the United States on November 20, 2024
★★★★★ 5
Fits 1988 Sea Ray V-135 2 stroke (Mercury)
For those of you with the 135 hp
mercury that was branded as the "Sea Ray 135" and paint matched to the boat (i.e. Seville's and some others) this is the 147 degree thermostat for that motor. My Seville is an '88 and It's difficult to cross reference the serial numbers on those motors when searching for parts. Only buy Quicksilver parts for these motors. Happy to find them on Amazon because Boats.net as an example, is not clear on what you're getting.
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Reviewed in the United States on August 3, 2024
