SKU: 60138856725

Mr. Gasket Copper Seal Header Gaskets - 7165MRG

$65.24 $72.49
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Ships within 48 hours · Estimated delivery Jul 15 - Jul 20

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For Your Every Summer RSVP, with Code: SUMMER15

Description

Mr. Gasket Copper Seal Header Gaskets - 7165MRGOverview: Mr. Gasket CopperSEAL header gaskets are a high quality copper gasket that performs extremely well and are reusable. We recommend this in all racing and high performance applications. They are for stock heads unless indicated, and work well in high heat and turbocharged applications. Sold as a pair. Features: Manufactured from "Dead Soft" (solid) . 043" thick copper material . 051" embossment around each exhaust port to seal irregular

Overview:

Mr. Gasket CopperSEAL header gaskets are a high quality copper gasket that performs extremely well and are reusable. We recommend this in all racing and high performance applications. They are for stock heads unless indicated, and work well in high heat and turbocharged applications. Sold as a pair.

Features:

  • Manufactured from "Dead Soft" (solid) .043" thick copper material
  • .051" embossment around each exhaust port to seal irregular surfaces. Total gasket thickness .094"
  • Provides excellent sealing and durability
  • Conforms to and seals minor surface irregularities
  • For high performance street, drag race, oval track and turbocharged (extreme heat) applications

 

Application:

Year Make Model Submodel Engine Size
1975 - 1978 Mercury Grand Marquis 460/7.5 V8
1972 - 1978 Mercury Marquis 460/7.5 V8
1973 - 1976 Mercury Montego 460/7.5 V8
1969 - 1973 Ford Country Sedan 429/7 V8
1972 - 1974 Ford Country Sedan 460/7.5 V8
1969 - 1973 Ford Country Squire 429/7 V8
1972 - 1974 Ford Country Squire 460/7.5 V8
1969 - 1973 Ford Custom 500 429/7 V8
1970 - 1973 Mercury Montego 429/7 V8
1969 - 1973 Mercury Monterey 429/7 V8
1972 - 1974 Mercury Monterey 460/7.5 V8
1969 - 1972 Ford Custom 429/7 V8
1973 - 1979 Ford F-100 460/7.5 V8
1973 - 1988 Ford F-250 460/7.5 V8
1973 - 1988 Ford F-350 460/7.5 V8
1974 - 1976 Ford Gran Torino 460/7.5 V8
1972 - 1978 Ford LTD 460/7.5 V8
1974 - 1977 Ford Ranchero 460/7.5 V8
1970 - 1976 Ford Thunderbird
1969 - 1976 Lincoln Continental
1968 - 1978 Lincoln Continental 460/7.5 V8
1972 - 1976 Lincoln Mark IV
1973 - 1976 Ford Torino 460/7.5 V8
1977 - 1978 Lincoln Mark V 460/7.5 V8
1973 - 1976 Mercury Cougar 460/7.5 V8
1969 - 1973 Ford Ranch Wagon 429/7 V8
1973 - 1974 Ford Ranch Wagon 460/7.5 V8
1970 - 1973 Ford Ranchero 429/7 V8
1968 - 1973 Ford Thunderbird 429/7 V8
1972 - 1974 Ford Thunderbird 460/7.5 V8
1970 - 1973 Ford Torino 429/7 V8
1968 Lincoln Continental 429/7 V8
1968 Lincoln Mark III 460/7.5 V8
1969 - 1973 Mercury Colony Park 429/7 V8
1972 - 1974 Mercury Colony Park 460/7.5 V8
1969 - 1971 Lincoln Mark III
1973 - 1976 Ford Custom 500 460/7.5 V8
1969 - 1973 Ford Galaxie 500 429/7 V8
1973 - 1974 Ford Galaxie 500 460/7.5 V8
1972 - 1973 Ford Gran Torino 429/7 V8
1969 - 1973 Ford LTD 429/7 V8
1970 Ford Mustang 429/7 V8
1969 - 1970 Mercury Marauder 429/7 V8
1969 - 1973 Mercury Marquis 429/7 V8
1978 Ford E-100 Econoline 460/7.5 V8
1975 - 1980 Ford E-250 Econoline 460/7.5 V8
1975 - 1988 Ford E-250 Econoline Club Wagon 460/7.5 V8
1975 - 1988 Ford E-350 Econoline 460/7.5 V8
1977 - 1988 Ford E-350 Econoline Club Wagon 460/7.5 V8
1976 Ford Elite 460/7.5 V8
1975 - 1979 Ford F-150 460/7.5 V8

 

Specs:

Brand Mr. Gasket
Collector Gaskets Included No
Emission Code 5
Engine Ford Big Block
Gasket Line Copper-Seal
Material Copper
Port Shape Rectangle
Port Size 1.25" x 2.08"
Product Type Header Gaskets
Thickness .094"
Warning California Proposition 65
Warranty Limited 90 Day Warranty
Weight 0.95
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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
SKU: 60138856725

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K
Verified Purchase
Kevin H.
Whiting, US
★★★★★ 5
RV owner.
Excellent product. Delivers the shine and protection as advertised.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
C
Verified Purchase
Christina Mellies
Houston, US
★★★★★ 5
Poli Glow used on bottom portion of the picture
Just put it on 21 foot RV, was impressed with the shine. Key is to make sure the applicator is moist. I periodically dampen with water. Realizing it wasn't going to revive the stickers. Question is How long it will last? What will it look like after it rains? Pictures attached, bottom portion was done with poli glow on June 7,2026 and I have just under a half of bottle left. Maybe I will update once it rains or how long the shine last.
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Reviewed in the United States on June 8, 2026
D
Verified Purchase
Diego
Massapequa, US
★★★★★ 5
It works miracles
I was amazed by the incredible difference it made on my RV. Check the pictures. The difference is of such a magnitude that we were amazed by the final results. Brought my rig back to life
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 1, 2025
D
Verified Purchase
Dan K.
Whiting, US
★★★★★ 5
Bringing a 1976 MG Midget to the modern world!
Material Type: 157mil Closed Cell Foam, Style: 157 mil 36 SqFt
I've been restoring a 1976 MG Midget barn find. I bought some Sinless liner to help make the car rattle less and feel more solid. This product is easy to cut, easy to install, and extremely sticky. I used it to line the trunk, the interior, and even some under the hood of the old MG. The adhesive stands up to the brutal temperature of the engine bay, and when (by accident) some fuel spilled onto the foam, it didn't fall apart or turn to mush. Thanks to Siless, the MG now feels like a modern car. The floor pans feel much more solid, the doors make a heftier thud when you close them, and the trunk no longer sounds like a percussion instrument when you touch it. If you know what you're doing, this product will transform the feel of a car. I found that 36 sq ft was enough for my MG Midget, but for a bigger car I would want more. The pattern on the back helped me to cut perfectly measured squares and rectangles. The foam itself doesn't have a strong odor, it works super well, and has held up to several months of changing temperatures (in the Midwest US.)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 11, 2025
M
Verified Purchase
Mike S.
Lake Worth, US
★★★★★ 5
Excellent Car Sound Deadening and Heat Insulation Solution
Material Type: 157mil Closed Cell Foam, Style: 157 mil 36 SqFt
If you're looking for a high-quality car sound deadening and heat insulation material, then the Siless Liner 157 (4 mm) mil 36 sqft is definitely worth considering. This product is designed to offer superior noise reduction and heat insulation for your car, making your driving experience more comfortable and enjoyable. The closed-cell foam material used in this product is of premium quality, and it effectively blocks out external noise and vibrations. This means you can enjoy a quieter and more peaceful ride, even on noisy roads. In addition, the Siless Liner 157 also provides excellent heat insulation, which can help keep your car cooler in hot weather. One of the best things about this product is that it's very easy to install. You don't need any special tools or equipment, and the material can be easily cut to fit any shape or size. It's also very lightweight and flexible, which makes it easy to work with. Overall, the Siless Liner 157 (4 mm) mil 36 sqft Car Sound Deadening Closed Cell Foam & Heat Insulation mat is an excellent choice for anyone looking to improve the comfort and performance of their car. It's a high-quality product that delivers on its promises, and it's definitely worth the investment.
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Reviewed in the United States on March 12, 2023

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