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427ci GM LT Gen V | Aluminum Re-Sleeve Block | Dry Sump | Factory Mast Heads

Marsoni M251S
Sale price$13499.50
Pay 4 payments of $3374.88 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
427ci GM LT Gen V | Aluminum Re-Sleeve Block | Dry Sump | Factory Mast HeadsEngine pricing & lead times vary please call 1 866 551 4916 for pricing & delivery estimate. Click here to request a custom engine with our free engine quote questionaire. Mast Motorsports 427 Cubic inch GM Gen V LT engine Port Fuel injection or Direct Injection Dry Sump Performance Engine Mast hand builds each engine, and remanufactures components to bring you only the highest quality engine available. Specs 427 Cubic Inch Factory Mast GM Gen V Re
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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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4.7 ★★★★★
Based on 1050 reviews
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Verified Purchase
SAVERA
Charlottesville, US
★★★★★ 5
Max loves it!
Color: Gray, Size: 24"x36"
Phoenix got hotter sooner this year, and even with a short haircut, my baby kept trying to find a cooler spot. I had my doubts about whether this bed would actually keep him cooler, and Max was initially suspicious (especially after he saw the cat picture on the label). It only took one hot afternoon to sell him on this cool, comfortable lounge spot. It does feel cooler; it's a lot more comfortable than the hard tile floor and he is out of the way when on it. Good buy at a good price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026
S
Verified Purchase
stacy renee
Cuba, US
★★★★★ 5
GREAT QUALITY CAT BED
Color: Gray, Size: 18"x24", Color: Gray, Size: 18"x24"
We love this self-warming and cooling cat bed because it's super soft, and the cooling side really works well! I can feel with my hand how cool it is by just touching it. I plan to put this outside in my cat's outdoor house; it will really help keep him warm in the winter and cooler in the summertime. It was super easy to throw in the wash on delicates, and I hung it up to dry. It's the perfect size, too; it should fit in his cat house perfectly and is big enough for him.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 7, 2026
J
Verified Purchase
Jeanine
Lake Worth, US
★★★★★ 5
This mat works so well for my kitty!
Color: Gray, Size: 18"x24"
This pet bed is such a smart find! Someone had the smart idea to make a bed that stays cool in the Summer and warm in the Winter! The material on the Winter side is soft, snuggly plush with a foil layer to hold in the heat. Flip the mat over and it’s the perfect cooling mat for Summer, with a cooling ice silk fabric to keep cool. The mat is the perfect size for a small dog or a cat. Spot cleaning is recommended as the preferred way to clean but the listing says that it can be washed using the gentle cycle. It needs to be air dried however. My cat wasn’t impressed to begin with, but once she got a little playtime with her favorite toy and some catnip, she settled right in. This is a good mat to fit right into her crate for traveling.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 23, 2026
V
Verified Purchase
🧡VanOhVan🧡
Dallas, US
★★★★★ 4
Great Versatile Mat🧡
Color: Gray, Size: 18"x24", Color: Gray, Size: 18"x24"
The cooling side works well with the hot temps and the warming side is great for those chilly nights which is great. It's easy to clean and my cats took to it right away. The fabric is soft and the cooling side is cool to the touch, my cats love it. Exactly as described🧡
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2026
F
Verified Purchase
Forest Mitchell Felling
Phoenix, US
★★★★★ 5
Cooling dog bed
Color: Gray, Size: 24"x36"
Good size for a medium dog. It is thin but soft Cooling aspect works. Our cat likes it as well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026

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