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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I am very pleased with the function and the design of this magsafe compatable phone holder. The magnets are very strong and will hold securely whether on smooth or rough roads. It rotates easily to conform to whatever angle is needed and works best for your application. The twist on/off suction device is easy to use and can be tightened or loosened with finger tips, you don’t have to give it an eagle claw grip to turn it, and this makes it especially pleasing to my wife.

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Reviewed in the United States on September 16, 2025

amber

Cuba, US

★★★★★ 5

Amazing quality, great magnet strength

The best phone holder, specifically made for your vehicle! Amazing quality, the adhesive on the tape is strong and so easy to install. It sticks amazing, holds your phone up steady and in place without shaking or falling all over the place

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Reviewed in the United States on December 30, 2025

Verified Purchase

Davor

Lowell, US

★★★★★ 5

Great Net!!

Size: 59 inches

The cargo net itself works great and keeps everything secure in my truck bed. The sticker tabs didn’t hold up well, so I switched to using the screws provided. The screws do the job perfectly, but installing them just feels wrong lol. Should be drilling holes in a brand new truck.

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Reviewed in the United States on July 24, 2025

Verified Purchase

c'est la vie🎉😘

Pawtucket, US

★★★★★ 5

Great trunk bed cargo net holds a ton in place

Size: 59 inches, Size: 59 inches

Just what I was looking for. Easy to install and very easy to reposition in your truck bed. Great purchase would recommend holds all my groceries and anything else I put in well constructed strong. This is great cause your items won’t slide all over the truck bed when you’re driving, it holds a bunch of bags or boxes. It’s so strong my husband put sandbags inside the compartments and still great. I do highly recommend this net organizer it will also work on the back of an SUV.

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Reviewed in the United States on September 20, 2022