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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The concept is interesting, however this particular product is a fail. There is not enough elastic/support and the seam by your toes moves quite a bit when you walk allowing the material to swallow your toes and can bunch up under the pad of your foot. Very uncomfortable and annoying. Don't waste your money, these socks belong in the trash!

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Reviewed in the United States on January 11, 2019

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Becca Love

Lexington, US

★★★★★ 2

This sock has a seem between 2 toes -very uncomfortable.

These are exactly the socks I needed to wear after breaking my foot, but there is a big, thick seam sewn in, between my big toe and the next toe. Extremely uncomfortable. I had to use a seam ripper to remove the threads on these socks, so I could wear them. We were leaving on a 4-week trip the next morning, I had no time to return them.

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Reviewed in the United States on December 24, 2023

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B R.

Lowell, US

★★★★★ 3

That they are not as they appear in photos.

The photos do not show that there is a section for the big toe and the rest is open. The photo shows as if the whole toe section is one opening instead of two. They work for what I want but just not what I thought they would be.

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Reviewed in the United States on November 29, 2021

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Melissa Schneider

Massapequa, US

★★★★★ 2

Not as pictured

The pictures make it seem like these are open all the way across. There are actually two holes. It is quite tight on the big toe. I will keep these, however I would not order these again.

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Reviewed in the United States on September 2, 2023

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Harley

Fort Morgan, US

★★★★★ 5

Perfect for my needs

Size matches my feet. Good enough quality. Comfortable.

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Reviewed in the United States on February 24, 2026