LS3 Medium Bore | Factory Mast | CNC Ported | Cylinder Head - Single Bare

LS3 Medium Bore | Factory Mast | CNC Ported | Cylinder Head - Single Bare

Marsoni

M251S

$800.00

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

LS3 Medium Bore | Factory Mast | CNC Ported | Cylinder Head - Single BareWe 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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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
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Great product, sturdy design and easy to build! It is a fairly light weight item, which aids in the maneuverability of the divider. The color was as described and is dark enough to block the light from our sleeping infants! I do love that you are able to see through the slats and see the child sleeping- if you are looking for something with MORE privacy, this is not it. It has great coverage area and is dark and a wonderful value for the price, however, you are able to see through the areas where each panel connects!

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Reviewed in the United States on August 18, 2025

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Tammy Lee Morris

West Palm Beach, US

★★★★★ 1

Don’t waste your money or time!

Color: White, Size: Standard - 4 Panel

Don’t waste your money. The instructions make no sense and the metal poles are either sized wrong for the product or screw holes are incorrectly placed, but no two poles matched in size and placement making it impossible to put this together without the panels being warped. No matter how I tried to switch the poles to see if I had them wrong, they always turned out warped and incorrectly fit. I finally gave up and threw everything out - I wasted $50 on this junk and because I didn’t try to put it together immediately after I bought it, it is way too late for a refund. Lesson learned!

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Reviewed in the United States on October 1, 2025

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Edward Hugee

West Palm Beach, US

★★★★★ 3

Sturdiness

Color: Black, Size: Standard - 4 Panel

Not so sturdy. It worked well for its intended job, but, it has to be secured to the floor for long term use.

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Reviewed in the United States on March 30, 2026

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