


LS LS1 Coolant / Steam Port Block Off Plate Set
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
LS LS1 Coolant / Steam Port Block Off Plate SetCoolant Steam Port Plugs Includes 2 coolant ports, 2 o rings, and 2 bolts Compatible with all GM LS series engines Can be installed on the front or rear of the cylinder heads Made in Wichita, Kansas from aerospace grade, USA produced, billet aluminum *These do NOT have holes for crossover tube attachment
Quick Dispatch:
Your LS LS1 Coolant / Steam Port Block Off Plate Set orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
Order Tracking:
You'll receive a tracking link by email once your LS LS1 Coolant / Steam Port Block Off Plate Set ships.
Need Help?
Questions about LS LS1 Coolant / Steam Port Block Off Plate Set, sizing, or delivery? We're just an email away.
Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for LS LS1 Coolant / Steam Port Block Off Plate Set in your area.
Get Shipping Estimates
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
You may also like
4.4 ★★★★★
Based on 703 reviews
Sort
Product Reviews
★★★★★ 5
Great
Had a splash guard come off my Honda and these were perfect and so easy to put the splash guard back on. They are very durable and good quality. I recommend these!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 27, 2026
★★★★★ 5
Easy to use
Kinda cool that it brings different size clips and the tool makes it easy to pull the clips out.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 28, 2025
★★★★★ 4
Fit as described
Used to install an inner fender liner. Seem a little more fragile than OEM, but suitable for the intended use and much less expensive.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 8, 2023
★★★★★ 5
Fits well, good quality.
Good assortment for the price; clips fit well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 10, 2026
★★★★★ 5
Good
Works great.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 11, 2026