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LS7 Large 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
LS7 Large Bore | Factory Mast | As Cast Port | Cylinder Head - PairLimited QTY. Available >Download Your Cylinder Head Spec Sheet Today< 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 is savings we pass down to you. You
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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
4.7 ★★★★★
Based on 2047 reviews
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G
Verified Purchase
George
Omaha, US
★★★★★ 5
Good fit and price for a 2017 Honda Civic
Been using these in my Honda Civic for a while now they work great no complaints
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 3, 2026
Z
Verified Purchase
Zander
Fort Morgan, US
★★★★★ 5
pretty good for price!
Great item with easy install, drops right in for a perfect fit! the quality is up there for its money, but certainly isn’t going to be your top of the line. however it gets the job done and has a prettt decent air flow for its price!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 13, 2025
A
Verified Purchase
AB
Grantham, US
★★★★★ 4
As expected
Fits perfectly and last long
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 15, 2026
B
Verified Purchase
Bob Jagielski
Birmingham, US
★★★★★ 5
Looks just like OEM
Fit great in 2018 Honda Civic. Easy to install and looked just like the OEM one (but much cleaner). Would recommend
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 17, 2025
D
Verified Purchase
dtho
Los Angeles, US
★★★★★ 5
2025 honda civic sport gas engine.
Perfect for 2025 honda civic sport gas engine.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 28, 2025

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