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Ships within 48 hours · Estimated delivery Jul 16 - Jul 21
Promo Codes Available:
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:
- 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
4.8 ★★★★★
Based on 8 reviews
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Product Reviews
★★★★★ 5
Really nice shoes
Size: 9, Color: Black Polished Full Grain
My husband enjoys wearing these shoes. Very classy looking. They fit well. They arrived quickly. He liked them so much he ordered another pair in a different color which have worked out just as well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 3, 2026
★★★★★ 3
Way too narrow
Size: 9.5 Wide, Color: Burgundy Polished Full Grain
I ordered a wide in this shoe, but it was still way too narrow. I had to return them. Otherwise, it looked like a nice quality shoe.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 12, 2026
★★★★★ 5
I usually wear 11.5's, but I buy 1/2 size smaller to accommodate for stretch. Leather relaxes.
Size: 11, Color: Burgundy Polished Full Grain
5 STARS: These shoes are awesome. I keep coming back for more. I have major foot problems, have tried all kinds of shoes, orthotics, and inserts... but believe it or not, these shoes work better than any of that stuff. I wear them daily. I buy lots of them, for home, for church, and I'm getting my first pair of J&M boots today, for winters in Indiana... Brrrr
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 18, 2025
★★★★★ 5
Great price great shoe
Size: 12, Color: Burgundy Polished Full Grain
Excellent shoe. Tried the Sebago penny loafer and the sizing was ridiculous. These J and M are sized perfectly. I’ve had them before and they wear like iron. Very comfortable right out of the box.
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Reviewed in the United States on May 23, 2026
★★★★★ 5
One of the best shoes
Size: 9.5, Color: Black Polished Full Grain
Outstanding. Fashionable, most comfortable and good construction. No sines of use after quite some time. Highly recommended.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 21, 2026
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