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]
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I ordered black but it was more like charcoal gray. I ordered a XL and it fit like a Large at best. The fabric was very soft, so that was a positive. Very disappointed in the color and sizing. I reordered a 2XL and it also runs very small. It fit about the same as the XL did. It is a athletic fit. There is barely any size difference between an XL and a 2XL. Highly recommend to not waste your money on this shirt.

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Reviewed in the United States on November 13, 2025

Verified Purchase

Betsy B

Carnegie, US

★★★★★ 5

Warm and comfy

Size: X-Large, Color: White

Very soft and warm. Runs small. I’d buy up a size. Washes well

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Reviewed in the United States on March 15, 2026

Verified Purchase