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LS3 Medium Bore | Factory Mast | CNC Ported | Cylinder Head - Single Bare
LS3 Medium Bore | Factory Mast | CNC Ported | Cylinder Head - Single Bare
LS3 Medium Bore | Factory Mast | CNC Ported | Cylinder Head - Single Bare
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LS3 Medium Bore | Factory Mast | CNC Ported | Cylinder Head - Single Bare

Marsoni M251S
Sale price$800.00
Pay 4 payments of $200.00 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
LS3 Medium Bore | Factory Mast | CNC Ported | Cylinder Head - Single BareWe took the Factory Mast LS3 and CNC ported it for even more improvement. Our Factory Mast Cylinder Head starts out with our "as cast" port which we now offer a CNC port for more airflow. This allows for an additional option and price point over our As Cast Port version and our Premium Black Label LS3. ***Download your Cylinder Head Technical Sheet here*** We launched our Factory Mast product line to deliver an economical product line for our
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  • Standard: 3-7 business days
  • 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]
  • Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 788 reviews
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Product Reviews
T
Verified Purchase
Tom Taylor
Whiting, US
★★★★★ 5
Great purchase
Size: 4 pcs: 15.7*5.7, Color: White
Easy to install. Great quality. Would buy it again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 20, 2026
D
Verified Purchase
Drago
New York, US
★★★★★ 5
Beautiful and very easy to install
Size: 4 pcs: 15.7*5.7, Color: White
They look great and very easy to install, I really recommend this product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
J
Verified Purchase
Jodi Cook
Lake Worth, US
★★★★★ 3
Just Ok.
Size: 4 pcs: 15.7*5.7, Color: Maple Wood, Size: 4 pcs: 15.7*5.7, Color: Maple Wood
They look nice but they aren’t sturdy and do not hold much weight. I’ve bought better ones on Amazon.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 12, 2026
M
Verified Purchase
Mrs. Buyer
Waukegan, US
★★★★★ 5
Worth
Size: 6 pcs: 15.7*5.7, Color: White
Really good wall amounts. I used the drywall anchors and it feels sturdy. I put like a 3 pound Crystal on it and it’s holding perfectly fine. I also was able to paint them with no problem would buy again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 13, 2026
M
Verified Purchase
Matthew Sanganza
Battle Creek, US
★★★★★ 5
Sturdy, Easy to Set Up, and Looks Great
Color: Grey, Size: 34" - 3 Panel
I’m really happy with this RANTILA 3-panel room divider. It was simple to set up, stands securely on its own, and gives plenty of privacy. The height is perfect, and the panels look clean and modern in my space. It’s lightweight enough to move around but still feels sturdy. Overall, a great divider that works exactly as I needed.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 14, 2025

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