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- USA
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Ships within 48 hours · Estimated delivery Jul 12 - Jul 17
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
4.2 ★★★★★
Based on 230 reviews
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Product Reviews
★★★★★ 5
Shark dog approved
Size: Large, Color: Broccoli, Size: Large, Color: Broccoli
My new baby shark.... I mean puppy really enjoys chewing. I can't just give her a ton of pig ears or bully sticks all day, which she would definitely love, so I'm constantly looking for well made chew toys. I'd put this right up with Kong. Very durable and nice. I also love the different textures, she seems to also love it. She can gnaw at the top and chew on the stem. She wanted it as soon as I opened it - it does smell like bacon but I haven't taken a chomp at it to be able to write a complete review!
My dog is about 23 lbs but I can see a 80 lb dog chew this, it's not small.
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Reviewed in the United States on October 8, 2025
★★★★★ 4
So cute
Size: Large, Color: Pumpkin
My French Bulldogs have really strong jaws and are aggressive chewers. These really are sturdy and last a good amount of time. They are a bit heavy and awkward for my dogs to hold onto but they do like them.
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Reviewed in the United States on April 25, 2026
★★★★★ 5
Cute toy and super tough!
Size: Small, Color: Lobster
My small dog is a serious chewer, and this lobster toy has been holding up great. Usually, he destroys toys within a day, but this one’s still going strong after a couple of weeks. The shape is perfect — easy for him to grab and chew, and the little claws keep him entertained.
The filet mignon flavor must be good because he goes right for it every time. It’s sturdy without being too hard on his teeth, and it doesn’t leave any mess or pieces behind.
If you’ve got a small but mighty chewer, this one’s definitely worth it. Cute design, lasts forever, and keeps my pup busy — total win. 🦞🐾
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Reviewed in the United States on October 26, 2025
★★★★★ 5
Excellent toy
Size: X-Large, Color: Lobster
Very durable. Dog who has destroyed every toy ever purchased loves this and it is still in great condition.
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Reviewed in the United States on April 21, 2026
★★★★★ 3
Cheese the Day with Nylabone's Power Chew Cheese Chew Toy!
Size: X-Large, Color: Cheese
As a devoted dog parent, I've always believed that our furry friends deserve the best, especially when it comes to their favorite pastime—chewing! Nylabone's Power Chew Cheese Chew Toy is a game-changer that's added an extra layer of excitement to our dog's chewing routine.
**Chew-Tastic Design:**
First things first, the cheese-inspired shape of this chew toy is a hit in our household. Our dog can't resist its quirky design, and it's become a beloved addition to his chew toy collection. It's like a fun surprise every time he reaches for it!
**Flavor Pockets for Fun:**
What truly sets this chew toy apart is its flavor pockets. We fill them with spreadable treats, turning regular chew time into an epic adventure. Our dog absolutely loves the challenge of getting every last bit of treat, and it keeps him engaged for hours.
**Dental Health Bonus:**
Beyond the fun factor, the unique textures on this toy serve a dual purpose. Not only do they provide extra sensory enjoyment for our pup, but they also help clean his teeth as he chews. It's a win-win for both entertainment and dental health.
**Built to Last:**
Now, let's talk durability. Our dog is a power chewer, and this toy has proven to be up to the challenge. Made from Nylabone's most robust material, it's stood the test of time, promoting healthy chewing habits and saving our furniture from destruction.
**Satisfaction All Around:**
This chew toy isn't just for our dog's enjoyment; it brings joy to our family too. Seeing our furry friend so engaged and happy is priceless. It satisfies his natural urge to chew while teaching him healthy chewing habits.
**A Flavorful Experience:**
Did I mention the cheese flavor? It runs throughout the toy, adding another layer of enjoyment for our pup. It's like a delicious treat that never ends!
**Perfect for Big Dogs:**
As the proud parent of an extra-large dog, we opted for the "Souper" size, designed for dogs over 50 pounds. It's the perfect size for our gentle giant.
In conclusion, Nylabone's Power Chew Cheese Chew Toy has become an integral part of our dog's life. It's more than just a chew toy; it's an adventure, a dental health solution, and hours of entertainment all rolled into one. We've embraced the mantra of "Cheese the Day" with this fantastic chew toy, and we wholeheartedly recommend it to fellow dog parents looking to add more joy and flair to their furry friend's life!
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Reviewed in the United States on October 27, 2023