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

Marsoni M251S
Sale price$1024.50
Pay 4 payments of $256.12 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
LS3 Medium Bore | Factory Mast | As Cast Port | Cylinder Head - PairExpected Ship Date February 2025 >Download the Cylinder Head Spec Sheet< > Download the Dyno Report 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
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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
4.3 ★★★★★
Based on 1549 reviews
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A
Verified Purchase
Amazon Customer
Grantham, US
★★★★★ 5
Great watch. Little loose.
Color: Silver-tone/White
Great watch! Little loose.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 14, 2026
D
Verified Purchase
D. Wetherbee
Bozeman, US
★★★★★ 5
Nice Everyday Watch
Color: Silver-tone/White
The watchband was a bit too big and no one seems to be able to take out a link. Other than that, it's an excellent inexpensive everyday watch
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 10, 2026
F
Verified Purchase
Fred Turek
Los Angeles, US
★★★★★ 1
Great watch, terrible band. Had two of these, both bands fell apart within weeks.
Color: Silver-tone/White, Color: Silver-tone/White
I had one just like this before. Great watch except they made one very bad change in the band which makes them fall apart within weeks. They don't tell time if you have to throw them in the garbage because of bands that fell apart. I like it, a nice clean dial, works fine, and you can make it light up to check the time in the dark. But some idiot made a terrible design change in the band. The center 1/3" of band is not twistable and falls apart easily. I've had two of these; both fell apart within weeks. The previous similar one that I owned without this design defect lasted me many years.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 29, 2024
R
Verified Purchase
Rhaelee BooHer
Pawtucket, US
★★★★★ 5
its a simple watch
Color: Silver-tone/White
This was a gift for my 80 Y/O father, the numbers are easy to read and the date (Numbered day only) will have to be adjusted if the month is 30 days instead of 31. The wristband fit perfectly, so there was no adjustment of links. He has had it for a month now and forgot to take it off when he entered the shower, still works, but wont let that happen again. If it lasts a year I will be happy, it wasn't expensive for a Timex and the silver color looked like silver.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 3, 2024
J
Verified Purchase
Jesse Byock, Jules William Press
Waukegan, US
★★★★★ 5
Watch face in the dark
Color: Silver-tone/White
The indigo really works!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 12, 2025

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