LS3 Medium Bore | Factory Mast | CNC Ported | Cylinder Head - Pair

LS3 Medium Bore | Factory Mast | CNC Ported | Cylinder Head - Pair

Marsoni

M251S

$1572.50

Get it in 3 business days with 1 day shipping. Friday, May 29

LS3 Medium Bore | Factory Mast | CNC Ported | Cylinder Head - PairWe took the Factory Mast LS3 and CNC ported it for even more improvement. Our Factory Mast Cylinder Head starts out with our "as cast" port which we now offer a CNC port for more airflow. This allows for an additional option and price point over our As Cast Port version and our Premium Black Label LS3. ***Download your Cylinder Head Technical Sheet here*** We launched our Factory Mast product line to deliver an economical product line for our

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Fast: 2-3 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

I bought the Cocoauto 2019 Honda CRV Cabin Air Filter and Engine Air Filter, and they both met my expectations perfectly. They fit just like the OEM parts and were easy to install without any hassle. The quality seems solid, and my car's airflow feels nice and clean again. No complaints here—just good, reliable filters that get the job done. Definitely worth it if you’re looking for an affordable replacement option.

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Reviewed in the United States on March 19, 2025