5.7 Liter GM LT Gen V | Aluminum Block Engine | Port Injected | Factory Mast Heads

5.7 Liter GM LT Gen V | Aluminum Block Engine | Port Injected | Factory Mast Heads

Marsoni

M251S

$3014.50

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

5.7 Liter GM LT Gen V | Aluminum Block Engine | Port Injected | Factory Mast HeadsPort Fuel Injection Long Block + Factory Mast Long Block (+) Crate Engine Combination What is a long block plus? It is a budget conscious complete long block that you can simply add the final touches to for a complete engine package. With so many options to choose from, you can pick what you need for each application and vehicle integration. Factory Mast Starts with the GM LT Base (GenV) engine and carefully assembles for maximum quality and

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
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I won’t actually use these for a few days when my mattress arrives. Unboxed this morning and they are not as plump and full as I expected but they’re laying out to expand. Overall first impression is they felt comfortable and I could adjust them with my hands. They seem well made and durable. Cant say anything yet about firmness or shape retention since I’ve not used them. They feel like they will be soft. So time will tell but so far I’m loving what I see.

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Reviewed in the United States on April 28, 2026