LS3 Large Bore | Factory Mast | As Cast Port | Cylinder Head - Pair

LS3 Large Bore | Factory Mast | As Cast Port | Cylinder Head - Pair

Marsoni

M251S

$772.50

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

LS3 Large Bore | Factory Mast | As Cast Port | Cylinder Head - PairLimited QTY. Available >Download Your Cylinder Head Spec Sheet Here< Introducing the Factory Mast "As Cast" Port Cylinder Head. We launched our Factory Mast product line to deliver an economical product line for our customers. We completely engineered and manufactured our long standing best in class CNC port into an "As Cast" port. This new process saves a significant amount of time and manufacturing cost, which is savings we pass down to you. You

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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

Comfy but cheaply made. I bought these for the price and expected them to be not the best quality but they are even less than I expected. Please also note that they run small. I got a 10-11 since I wear 11 shoe and Amazon recommended this size. I think a size larger would have been better. Not worth returning though. I’ll just wear them this winter if they last that long and get a better brand next time.

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Reviewed in the United States on December 25, 2025

Verified Purchase

L R

Battle Creek, US

★★★★★ 5

I will buy these again.

Size: 12-13, Color: Cable Knit Brown

These are great. They’re warm and comfortable.

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Reviewed in the United States on May 5, 2026

Verified Purchase