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USA
- USA
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- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 10 - Jul 15
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Mr. Gasket Copper Seal Header Gaskets - 7166MRGOverview: 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. Features: Manufactured from Dead Soft (solid) . 043" thick copper material . 051" embossment around each exhaust port to seal irregular surfaces. Total gasket
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.
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 |
|---|---|---|---|---|
| 1984 - 1988 | Dodge | D350 | ||
| 1981 - 1989 | Dodge | D250 | 360/5.9 V8 | |
| 1981 - 1989 | Dodge | D350 | 360/5.9 V8 | |
| 1979 - 1981 | Dodge | D400 | ||
| 1978 | Dodge | D450 | 360/5.9 V8 | |
| 1975 - 1980 | Dodge | D300 | 360/5.9 V8 | |
| 1974 - 1976 | Dodge | Dart | 360/5.9 V8 | |
| 1978 - 1983 | Dodge | Diplomat | 318/5.2 V8 | |
| 1978 - 1979 | Dodge | Diplomat | 360/5.9 V8 | |
| 1977 - 1989 | Dodge | Diplomat | ||
| 1978 | Dodge | D400 | 360/5.9 V8 | |
| 1979 - 1981 | Dodge | D450 | ||
| 1980 | Dodge | Mirada | 360/5.9 V8 | |
| 1980 - 1983 | Dodge | Mirada | 318/5.2 V8 | |
| 1968 - 1976 | Dodge | Dart | 318/5.2 V8 | |
| 1968 - 1978 | Dodge | Monaco | 318/5.2 V8 | |
| 1971 - 1978 | Dodge | Monaco | 360/5.9 V8 | |
| 1978 - 1979 | Dodge | Magnum | 318/5.2 V8 | |
| 1978 - 1979 | Dodge | Magnum | 360/5.9 V8 | |
| 1974 - 1989 | Dodge | Ramcharger | 360/5.9 V8 | |
| 1975 - 1977 | Dodge | Royal Monaco | 318/5.2 V8 | |
| 1979 - 1981 | Dodge | St. Regis | 318/5.2 V8 | |
| 1975 - 1988 | Dodge | W100 | 360/5.9 V8 | |
| 1977 - 1989 | Dodge | W150 | 360/5.9 V8 | |
| 1975 - 1977 | Dodge | Royal Monaco | 360/5.9 V8 | |
| 1979 - 1980 | Dodge | St. Regis | 360/5.9 V8 | |
| 1975 - 1980 | Dodge | W200 | 360/5.9 V8 | |
| 1981 - 1989 | Dodge | W250 | 360/5.9 V8 | |
| 1975 - 1980 | Dodge | W300 | 360/5.9 V8 | |
| 1981 - 1988 | Dodge | W350 | ||
| 1982 - 1989 | Dodge | W350 | 360/5.9 V8 | |
| 1979 | Dodge | W300 | ||
| 1970 - 1976 | Plymouth | Duster | 318/5.2 V8 | |
| 1974 - 1976 | Plymouth | Duster | 360/5.9 V8 | |
| 1971 - 1978 | Plymouth | Fury | 360/5.9 V8 | |
| 1972 - 1983 | Plymouth | Gran Fury | 318/5.2 V8 | |
| 1966 - 1978 | Plymouth | Fury | 318/5.2 V8 | |
| 1972 - 1980 | Plymouth | Gran Fury | 360/5.9 V8 | |
| 1984 - 1989 | Plymouth | Gran Fury | ||
| 1976 - 1978 | Plymouth | PB100 | 360/5.9 V8 | |
| 1975 - 1980 | Plymouth | PB200 | 360/5.9 V8 | |
| 1971 - 1974 | Dodge | D200 Pickup | 360/5.9 V8 | |
| 1967 | Dodge | D200 Series | 318/5.2 V8 | |
| 1968 - 1974 | Dodge | D300 Pickup | 318/5.2 V8 | |
| 1971 - 1974 | Dodge | D300 Pickup | 360/5.9 V8 | |
| 1967 - 1973 | Dodge | Polara | 318/5.2 V8 | |
| 1967 | Dodge | D300 Series | 318/5.2 V8 | |
| 1969 | Dodge | Polara | 440/7.2 V8 | |
| 1971 - 1973 | Dodge | Polara | 360/5.9 V8 | |
| 1967 - 1969 | Dodge | Dart | 273/4.5 V8 | |
| 1968 - 1973 | Dodge | Dart | 340/5.6 V8 | |
| 1968 - 1974 | Dodge | W100 Pickup | 318/5.2 V8 | |
| 1972 - 1974 | Dodge | W100 Pickup | 360/5.9 V8 | |
| 1974 | Dodge | M350 | 318/5.2 V8 | |
| 1969 - 1974 | Dodge | W200 Pickup | 318/5.2 V8 | |
| 1971 - 1974 | Dodge | W200 Pickup | 360/5.9 V8 | |
| 1967 | Dodge | W200 Series | 318/5.2 V8 | |
| 1968 - 1974 | Dodge | W300 Pickup | 318/5.2 V8 | |
| 1971 - 1974 | Dodge | W300 Pickup | 360/5.9 V8 | |
| 1967 | Dodge | W300 Series | 318/5.2 V8 | |
| 1974 | Dodge | Ramcharger | 318/5.2 V8 | |
| 1967 | Dodge | W100 Series | 318/5.2 V8 | |
| 1967 | Plymouth | Barracuda | 273/4.5 V8 | |
| 1968 - 1974 | Plymouth | Barracuda | 318/5.2 V8 | |
| 1968 - 1973 | Plymouth | Barracuda | 340/5.6 V8 | |
| 1967 - 1968 | Plymouth | Belvedere | 273/4.5 V8 | |
| 1967 - 1970 | Plymouth | Belvedere | 318/5.2 V8 | |
| 1970 - 1973 | Plymouth | Cuda | 340/5.6 V8 | |
| 1974 | Plymouth | Barracuda | 360/5.9 V8 | |
| 1978 - 1979 | Chrysler | LeBaron | 360/5.9 V8 | |
| 1978 - 1981 | Chrysler | LeBaron | 318/5.2 V8 | |
| 1977 - 1980 | Chrysler | New Yorker | 360/5.9 V8 | |
| 1979 - 1982 | Chrysler | New Yorker | 318/5.2 V8 | |
| 1970 - 1973 | Plymouth | Duster | 340/5.6 V8 | |
| 1973 - 1974 | Plymouth | Cuda | 318/5.2 V8 | |
| 1974 | Plymouth | Cuda | 360/5.9 V8 | |
| 1968 - 1973 | Plymouth | Fury I | 318/5.2 V8 | |
| 1971 - 1974 | Plymouth | Fury I | 360/5.9 V8 | |
| 1967 - 1973 | Plymouth | Fury II | 318/5.2 V8 | |
| 1971 - 1974 | Plymouth | Fury II | 360/5.9 V8 | |
| 1967 - 1973 | Plymouth | Fury III | 318/5.2 V8 | |
| 1971 - 1974 | Plymouth | Fury III | 360/5.9 V8 | |
| 1968 | Plymouth | GTX | 318/5.2 V8 | |
| 1974 | Plymouth | PB100 Van | 318/5.2 V8 | |
| 1974 | Plymouth | PB100 Van | 360/5.9 V8 | |
| 1974 | Plymouth | PB200 Van | 318/5.2 V8 | |
| 1974 | Plymouth | PB200 Van | 360/5.9 V8 | |
| 1971 - 1973 | Plymouth | Road Runner | 340/5.6 V8 | |
| 1968 - 1975 | Plymouth | Road Runner | 318/5.2 V8 | |
| 1974 - 1975 | Plymouth | Road Runner | 360/5.9 V8 | |
| 1974 | Plymouth | PB300 Van | 318/5.2 V8 | |
| 1974 | Plymouth | PB300 Van | 360/5.9 V8 | |
| 1967 - 1974 | Plymouth | Satellite | 318/5.2 V8 | |
| 1968 | Plymouth | Road Runner | 273/4.5 V8 | |
| 1972 | Plymouth | Satellite | 340/5.6 V8 | |
| 1968 - 1974 | Dodge | D100 Pickup | 318/5.2 V8 | |
| 1971 - 1974 | Dodge | D100 Pickup | 360/5.9 V8 | |
| 1968 - 1974 | Dodge | D200 Pickup | 318/5.2 V8 | |
| 1974 | Dodge | M300 | 318/5.2 V8 | |
| 1966 - 1978 | Dodge | Charger | 318/5.2 V8 | |
| 1981 - 1989 | Dodge | B350 | 360/5.9 V8 | |
| 1974 | Plymouth | Satellite | 360/5.9 V8 | |
| 1971 - 1976 | Plymouth | Scamp | 318/5.2 V8 | |
| 1975 - 1983 | Chrysler | Cordoba | 318/5.2 V8 | |
| 1975 - 1980 | Chrysler | Cordoba | 360/5.9 V8 | |
| 1983 | Chrysler | Fifth Avenue | 318/5.2 V8 | |
| 1984 - 1989 | Chrysler | Fifth Avenue | ||
| 1981 - 1983 | Chrysler | Imperial | ||
| 1977 | Chrysler | LeBaron | ||
| 1967 - 1968 | Plymouth | Satellite | 273/4.5 V8 | |
| 1974 | Plymouth | Trailduster | 318/5.2 V8 | |
| 1974 - 1981 | Plymouth | Trailduster | 360/5.9 V8 | |
| 1968 - 1976 | Plymouth | Valiant | 318/5.2 V8 | |
| 1967 | Plymouth | VIP | 318/5.2 V8 | |
| 1967 - 1969 | Plymouth | Valiant | 273/4.5 V8 | |
| 1967 | Plymouth | Belvedere II | 318/5.2 V8 | |
| 1967 | Plymouth | Belvedere II | 273/4.5 V8 | |
| 1970 | Dodge | A100 | ||
| 1975 - 1988 | Dodge | D100 | 360/5.9 V8 | |
| 1971 - 1974 | Dodge | B200 Van | 360/5.9 V8 | |
| 1971 - 1974 | Dodge | B300 Van | 318/5.2 V8 | |
| 1971 - 1974 | Dodge | B300 Van | 360/5.9 V8 | |
| 1967 - 1976 | Dodge | Coronet | 318/5.2 V8 | |
| 1974 - 1980 | Dodge | CB300 | 318/5.2 V8 | |
| 1974 - 1980 | Dodge | CB300 | 360/5.9 V8 | |
| 1970 - 1974 | Dodge | Challenger | 318/5.2 V8 | |
| 1970 - 1973 | Dodge | Challenger | 340/5.6 V8 | |
| 1972 - 1973 | Dodge | Coronet | 340/5.6 V8 | |
| 1973 - 1976 | Dodge | Coronet | 360/5.9 V8 | |
| 1971 - 1973 | Dodge | Charger | 340/5.6 V8 | |
| 1967 | Dodge | D100 Series | 318/5.2 V8 | |
| 1967 - 1968 | Dodge | Coronet | 273/4.5 V8 | |
| 1981 | Chrysler | New Yorker | ||
| 1971 - 1980 | Chrysler | Newport | 360/5.9 V8 | |
| 1979 - 1981 | Chrysler | Newport | 318/5.2 V8 | |
| 1978 - 1979 | Chrysler | Town & Country | 360/5.9 V8 | |
| 1976 - 1978 | Dodge | B100 | 360/5.9 V8 | |
| 1978 - 1981 | Chrysler | Town & Country | 318/5.2 V8 | |
| 1976 - 1980 | Dodge | Aspen | 318/5.2 V8 | |
| 1976 - 1980 | Dodge | Aspen | 360/5.9 V8 | |
| 1975 - 1980 | Dodge | B200 | 360/5.9 V8 | |
| 1980 | Dodge | RD200 | 360/5.9 V8 | |
| 1981 - 1989 | Dodge | B250 | 360/5.9 V8 | |
| 1975 - 1980 | Dodge | B300 | 360/5.9 V8 | |
| 1974 | Dodge | Challenger | 360/5.9 V8 | |
| 1967 | Dodge | A100 Truck | 273/4.5 V8 | |
| 1967 - 1970 | Dodge | A100 Truck | 318/5.2 V8 | |
| 1974 - 1978 | Dodge | Charger | 360/5.9 V8 | |
| 1971 - 1974 | Dodge | B100 Van | 318/5.2 V8 | |
| 1971 - 1974 | Dodge | B100 Van | 360/5.9 V8 | |
| 1971 - 1974 | Dodge | B200 Van | 318/5.2 V8 | |
| 1975 - 1980 | Plymouth | PB300 | 360/5.9 V8 | |
| 1981 | Plymouth | PB250 | 360/5.9 V8 | |
| 1981 - 1983 | Plymouth | PB350 | 360/5.9 V8 | |
| 1976 | Plymouth | Valiant | 360/5.9 V8 | |
| 1976 - 1980 | Plymouth | Volare | 360/5.9 V8 | |
| 1976 - 1980 | Plymouth | Volare | 318/5.2 V8 | |
| 1977 - 1989 | Dodge | D150 | 360/5.9 V8 | |
| 1975 - 1980 | Dodge | D200 | 360/5.9 V8 |
Specs:
| Brand | Mr. Gasket |
|---|---|
| Collector Gaskets Included | No |
| Emission Code | 5 |
| Engine | Chrysler Small Block LA |
| Gasket Line | Copper-Seal |
| Material | Copper |
| Port Shape | Rectangle |
| Port Size | 1.00" x 1.64" |
| Product Type | Header Gaskets |
| Thickness | .094" |
| Warning | California Proposition 65 |
| Warranty | Limited 90 Day Warranty |
| Weight | 0.88 |
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
4.1 ★★★★★
Based on 1138 reviews
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Product Reviews
★★★★★ 2
Not quite right….
Color: White, Size: Standard
I’m torn on this pillow. While it does have merit, there were some serious “flaws” for me. I am a side sleeper and I’ve been on the hunt for a neck supportive pillow. This didn’t have that for me. The night started with good possibility, but I woke up several hours in and found the pillow flat where I was; all the filling had moved to the top. It IS very cool to the touch and I could definitely tell it was cool while sleeping on it. The loft of this pillow is fine, but not stupendous, and the softness was pretty great. Overall, just not the best. If the filling had stayed put through the night, I might’ve kept, but as it was, I returned.
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Reviewed in the United States on September 22, 2025
★★★★★ 5
Does the job!
Color: White, Size: Standard
This pillow offers superb support and stays cool. It replaced my previous one from a couple years back. I did notice that, like so many things, it isn’t as full as my previous one but still offers a good nights rest for this side sleeper.
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Reviewed in the United States on February 3, 2026
★★★★★ 5
These pillows perform wonderfully and they hold up!
Color: Grey, Size: Standard, Color: Grey, Size: Standard
I have had these pillows for 5 years, so mine is not in brand new condition in this photo but they still appear pretty good and function wonderfully. I recommend these to others looking for a soft but supportive pillow. They are the standard microfiber cooling ones. I have one and my daughter (7) has the other. We use them every night and they are just the perfect amount of medium-softness for both of us despite us being very different in size! Still fluff back up, have just enough support and height or thickness in my opinion (I don’t like very firm microfiber pillows as much, and I don’t like the feather pillows that aren’t goose down because they get crunchy and flat). Love these pillows, the price is super reasonable for the product they provide. They have held up this long, I’d say they are of good quality. I’ve just ordered another set for a visit to my mothers house! Our favorite pillows!
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Reviewed in the United States on May 23, 2026
★★★★★ 5
Super Comfortable and Easy to Sleep On
Color: Memory Pillow, Size: Standard
HIMOON Shredded Memory Foam Pillows are honestly way more comfortable than I expected—they’re soft but still supportive, and I like that I can adjust and fluff them to fit how I sleep. They feel good for both side and back sleeping, and they don’t go flat like some cheaper pillows I’ve tried. After using them for a while, they’ve held up well and still feel cozy every night. Overall, just a really comfortable, no-stress pillow that makes it easy to fall asleep 👍
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Reviewed in the United States on April 25, 2026
★★★★★ 4
Good pillows; wear a mask when fluffing and airing out
Color: Memory Pillow, Size: Standard
Searched everywhere for comfortable pillows, finally found this set. Perfect density and firmness, very comfortable. Downside is that they were covered in some type of white powder which dispersed as I was fluffing them up. Fiberglass, maybe? I recommend customers fluff and air them outside before use, and wear a mask. Pillows had an industrial smell, which dissipated after 20 minutes in the fresh air.
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Reviewed in the United States on April 8, 2025