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

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

Marsoni

M251S

$12499.50

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

427ci GM LT Gen V | Aluminum Re-Sleeve Block | Wet 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 Wet Sump Applications 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 Sleeve

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For context, I’m a seasoned woodworker and always evaluate tools with the price in mind. This seemed like a good deal and in fact when it arrived, it looked and felt like reasonable quality for the price. Unhappily, the first bookshelf I drilled was off from side to side by almost 3 mm which would make a really wobbly shelf situation. It took a while to figure out what was happening, but I finally realized the metal bushings that guide the drill bit are so soft that they cored out from contact with the bit even though I was cautious to not put the bit in under power but to get it in the bushing and aligned before drilling. Still, the bushings started angling immediately. So when you then use those angled bushings to set the pin for the next series, it’s off by a little bit. Then the next is off by a little more…. By the time I drilled holes up and down a 6’ high shelf, the bushings were out of square, the holes were 3 mm out of alignment, and the shelf sides were firewood. Back to the drawing board and this goes in the trash, I’m afraid.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on May 3, 2026

Verified Purchase

Anna E.

San Leandro, US

★★★★★ 5

Good Product!

Color: Taupe, Size: 20-Inch x 6-feet

This line is fantastic. Wonderful grip and nice color selection. Does the job each time and measuring is a breeze.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on April 12, 2026