Pay in installments of $12.99 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Sep 11 - Sep 16
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Mr. Gasket Ultra-Seal Valve Cover Gaskets - .312 Inch Thick - 5863Overview: These are high quality gaskets that works well on those hard to seal applications. The low density fiber & rubber blend gasket material seals those minor head imperfections with a low clamp force. At . 312 inch, the extra thickness can also offer slightly more clearance for roller rockers. Ideal for all those high performance applications where you take the valve covers off and on a lot, and sticking is a problem. Fits all 1965 2000 Chevy
Overview:
These are high quality gaskets that works well on those hard to seal applications. The low density fiber & rubber blend gasket material seals those minor head imperfections with a low clamp force. At .312 inch, the extra thickness can also offer slightly more clearance for roller rockers. Ideal for all those high performance applications where you take the valve covers off and on a lot, and sticking is a problem.
Fits all 1965-2000 Chevy Big Blocks: 366,396,402,427,454 including GM (General Motors) Gen VI Crate Engines like the 502 and 572.
Features:
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| 1971 - 1975 | GMC | Sprint | 454/7.4 V8 | |
| 1969 - 1970 | Chevrolet | Nova | 396/6.5 V8 | |
| 1979 - 1990 | GMC | K3500 | 454/7.4 V8 | |
| 1987 - 1989 | GMC | R2500 | 454/7.4 V8 | |
| 1987 - 1990 | GMC | R2500 Suburban | 454/7.4 V8 | |
| 1987 - 1990 | GMC | R3500 | 454/7.4 V8 | |
| 1987 - 1990 | GMC | V3500 | 454/7.4 V8 | |
| 1963 - 1969 | Chevrolet | Bel Air | 427/7 V8 | |
| 1968 - 1969 | Chevrolet | Bel Air | 396/6.5 V8 | |
| 1970 - 1975 | Chevrolet | Bel Air | 454/7.4 V8 | |
| 1971 - 1972 | Chevrolet | Bel Air | 402/6.6 V8 | |
| 1968 - 1969 | Chevrolet | K10 Suburban | 396/6.5 V8 | |
| 1968 - 1969 | Chevrolet | K20 Pickup | 396/6.5 V8 | |
| 1973 - 1974 | Chevrolet | K20 Pickup | 454/7.4 V8 | |
| 1968 - 1969 | Chevrolet | K30 Pickup | 396/6.5 V8 | |
| 1973 - 1974 | Chevrolet | K30 Pickup | 454/7.4 V8 | |
| 1970 - 1972 | Chevrolet | Kingswood | 454/7.4 V8 | |
| 1971 - 1972 | Chevrolet | Kingswood | 402/6.6 V8 | |
| 1973 - 1975 | Chevrolet | Laguna | 454/7.4 V8 | |
| 1973 - 1975 | Chevrolet | Malibu | 454/7.4 V8 | |
| 1970 - 1975 | Chevrolet | Monte Carlo | 454/7.4 V8 | |
| 1970 - 1972 | Chevrolet | Monte Carlo | 402/6.6 V8 | |
| 1970 | Chevrolet | Nova | 402/6.6 V8 | |
| 1970 - 1972 | Chevrolet | Townsman | 454/7.4 V8 | |
| 1972 | Chevrolet | Townsman | 402/6.6 V8 | |
| 1968 - 1969 | GMC | C15/C1500 Pickup | 396/6.5 V8 | |
| 1973 - 1974 | GMC | C15/C1500 Pickup | 454/7.4 V8 | |
| 1968 - 1969 | GMC | C15/C1500 Suburban | 396/6.5 V8 | |
| 1973 - 1974 | Chevrolet | C30 Pickup | 454/7.4 V8 | |
| 1968 - 1969 | Chevrolet | Camaro | 396/6.5 V8 | |
| 1970 - 1972 | Chevrolet | Camaro | 402/6.6 V8 | |
| 1966 - 1969 | Chevrolet | Caprice | 427/7 V8 | |
| 1968 - 1969 | Chevrolet | Caprice | 396/6.5 V8 | |
| 1970 - 1976 | Chevrolet | Caprice | 454/7.4 V8 | |
| 1971 - 1972 | Chevrolet | Caprice | 402/6.6 V8 | |
| 1968 - 1970 | Chevrolet | Chevelle | 396/6.5 V8 | |
| 1970 - 1973 | Chevrolet | Chevelle | 454/7.4 V8 | |
| 1970 - 1972 | Chevrolet | Chevelle | 402/6.6 V8 | |
| 1968 | Chevrolet | Chevy II | 396/6.5 V8 | |
| 1966 - 1969 | Chevrolet | Corvette | 427/7 V8 | |
| 1970 - 1974 | Chevrolet | Corvette | 454/7.4 V8 | |
| 1969 | Chevrolet | El Camino | 396/6.5 V8 | |
| 1970 - 1975 | Chevrolet | El Camino | 454/7.4 V8 | |
| 1970 - 1972 | Chevrolet | El Camino | 402/6.6 V8 | |
| 1973 - 1974 | Chevrolet | G20 Van | 454/7.4 V8 | |
| 1973 - 1974 | Chevrolet | G30 Van | 454/7.4 V8 | |
| 1963 - 1969 | Chevrolet | Impala | 427/7 V8 | |
| 1968 - 1969 | Chevrolet | Impala | 396/6.5 V8 | |
| 1970 - 1976 | Chevrolet | Impala | 454/7.4 V8 | |
| 1988 - 1990 | Chevrolet | C3500 | 454/7.4 V8 | |
| 1975 - 1986 | Chevrolet | C30 | 454/7.4 V8 | |
| 1976 | Chevrolet | G20 | 454/7.4 V8 | |
| 1975 - 1990 | Chevrolet | G30 | 454/7.4 V8 | |
| 1976 - 1980 | Chevrolet | K10 | 454/7.4 V8 | |
| 1976 - 1978 | Chevrolet | K20 | 454/7.4 V8 | |
| 1977 - 1986 | Chevrolet | K30 | 454/7.4 V8 | |
| 1988 - 1990 | Chevrolet | K3500 | 454/7.4 V8 | |
| 1987 - 1988 | Chevrolet | R20 | 454/7.4 V8 | |
| 1987 - 1988 | Chevrolet | R20 Suburban | 454/7.4 V8 | |
| 1989 | Chevrolet | R2500 | 454/7.4 V8 | |
| 1989 - 1990 | Chevrolet | R2500 Suburban | 454/7.4 V8 | |
| 1987 - 1988 | Chevrolet | R30 | 454/7.4 V8 | |
| 1989 - 1990 | Chevrolet | R3500 | 454/7.4 V8 | |
| 1987 - 1988 | Chevrolet | V30 | 454/7.4 V8 | |
| 1989 - 1990 | Chevrolet | V3500 | 454/7.4 V8 | |
| 1975 - 1978 | GMC | C15 | 454/7.4 V8 | |
| 1979 - 1980 | GMC | C1500 | 454/7.4 V8 | |
| 1975 - 1978 | GMC | C15 Suburban | 454/7.4 V8 | |
| 1979 - 1980 | GMC | C1500 Suburban | 454/7.4 V8 | |
| 1975 - 1978 | GMC | C25 | 454/7.4 V8 | |
| 1979 - 1986 | GMC | C2500 | 454/7.4 V8 | |
| 1975 - 1978 | GMC | C25 Suburban | 454/7.4 V8 | |
| 1979 - 1986 | GMC | C2500 Suburban | 454/7.4 V8 | |
| 1975 - 1978 | GMC | C35 | 454/7.4 V8 | |
| 1979 - 1990 | GMC | C3500 | 454/7.4 V8 | |
| 1975 - 1976 | GMC | G25 | 454/7.4 V8 | |
| 1976 | GMC | G35 | 454/7.4 V8 | |
| 1988 - 1990 | GMC | G3500 | 454/7.4 V8 | |
| 1973 - 1976 | GMC | Jimmy | 454/7.4 V8 | |
| 1976 | GMC | K15 | 454/7.4 V8 | |
| 1980 | GMC | K1500 | 454/7.4 V8 | |
| 1976 - 1978 | GMC | K25 | 454/7.4 V8 | |
| 1976 - 1977 | GMC | K25 Suburban | 454/7.4 V8 | |
| 1971 - 1972 | Chevrolet | Impala | 402/6.6 V8 | |
| 1968 - 1969 | Chevrolet | K10 Pickup | 396/6.5 V8 | |
| 1974 | Chevrolet | K10 Pickup | 454/7.4 V8 | |
| 1976 - 1978 | Chevrolet | K5 Blazer | 454/7.4 V8 | |
| 1975 - 1980 | Chevrolet | C10 | 454/7.4 V8 | |
| 1973 - 1980 | Chevrolet | C10 Suburban | 454/7.4 V8 | |
| 1990 | Chevrolet | C1500 | 454/7.4 V8 | |
| 1975 - 1986 | Chevrolet | C20 | 454/7.4 V8 | |
| 1973 - 1986 | Chevrolet | C20 Suburban | 454/7.4 V8 | |
| 1968 - 1969 | GMC | C35/C3500 Pickup | 396/6.5 V8 | |
| 1974 | GMC | C25/C2500 Suburban | 454/7.4 V8 | |
| 1973 - 1974 | GMC | C35/C3500 Pickup | 454/7.4 V8 | |
| 1968 - 1969 | GMC | K15/K1500 Pickup | 396/6.5 V8 | |
| 1968 | GMC | K15/K1500 Suburban | 396/6.5 V8 | |
| 1974 | GMC | K15/K1500 Suburban | 454/7.4 V8 | |
| 1968 - 1969 | GMC | K25/K2500 Pickup | 396/6.5 V8 | |
| 1973 - 1974 | GMC | K25/K2500 Pickup | 454/7.4 V8 | |
| 1968 | GMC | K25/K2500 Suburban | 396/6.5 V8 | |
| 1974 | GMC | K25/K2500 Suburban | 454/7.4 V8 | |
| 1968 - 1969 | GMC | K35/K3500 Pickup | 396/6.5 V8 | |
| 1973 - 1974 | GMC | K35/K3500 Pickup | 454/7.4 V8 | |
| 1963 - 1969 | Chevrolet | Biscayne | 427/7 V8 | |
| 1968 - 1969 | Chevrolet | Biscayne | 396/6.5 V8 | |
| 1971 - 1972 | Chevrolet | Biscayne | 454/7.4 V8 | |
| 1971 - 1972 | Chevrolet | Biscayne | 402/6.6 V8 | |
| 1973 | Chevrolet | Blazer | 454/7.4 V8 | |
| 1972 | Chevrolet | Brookwood | 402/6.6 V8 | |
| 1968 - 1969 | Chevrolet | C10 Pickup | 396/6.5 V8 | |
| 1973 - 1974 | Chevrolet | C10 Pickup | 454/7.4 V8 | |
| 1968 - 1969 | Chevrolet | C10 Suburban | 396/6.5 V8 | |
| 1968 - 1969 | Chevrolet | C20 Pickup | 396/6.5 V8 | |
| 1973 - 1974 | Chevrolet | C20 Pickup | 454/7.4 V8 | |
| 1968 - 1969 | Chevrolet | C20 Suburban | 396/6.5 V8 | |
| 1968 - 1969 | Chevrolet | C30 Pickup | 396/6.5 V8 | |
| 1973 - 1974 | GMC | C15/C1500 Suburban | 454/7.4 V8 | |
| 1968 - 1969 | GMC | C25/C2500 Pickup | 396/6.5 V8 | |
| 1973 - 1974 | GMC | C25/C2500 Pickup | 454/7.4 V8 | |
| 1968 - 1969 | GMC | C25/C2500 Suburban | 396/6.5 V8 |
Specs:
| Application | Big Block Chevy |
|---|---|
| Brand | Mr. Gasket |
| Color | Black |
| Emission Code | 5 |
| Engine | Chevrolet Big Block Gen V/VI |
| Engine | Chevrolet Big Block Mark IV |
| Finish | Rubber coated |
| Packaging | Retail - Skin Pack |
| Product Type | Valve Cover Accessories |
| Valve Cover Gasket Material | Ultra Seal |
| Valve Cover Gasket Thickness | .312" |
| Warranty | Limited 90 Day Warranty |
| Weight | 0.5 |
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 7 reviews
Sort
Product Reviews
★★★★★ 5
Chicken and Peanut Butter - Two Great Tastes That Taste Great Together... to my Dog
My dog is a fairly selective eater, but she loves chicken jerky and peanut butter, so I thought I'd give these a try. She took to them right away, and can finish one off in about 3 minutes.
They have a distinct smell of peanut butter (despite peanut butter only being 3% of the composition). Each chicken jerky-wrapped peanut butter biscuit is about 4.5" long, and they arrive packaged in a resealable bag.
Made in China; my bag was printed with a 'BEST BEFORE' date over a year from the date I received them.
Note that these treats have been irradiated to kill harmful bacteria and parasites.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 19, 2026
★★★★★ 5
Dogs love them
This product offers a solid overall experience and delivers well on its core purpose. The design is practical and user-friendly, making it easy to get started without much effort. In terms of performance, it works reliably for everyday use and meets basic expectations.
The build quality feels decent, with materials that appear durable enough for regular use. While it may not be the most premium option available, it provides good value for its price point. Most users will find it to be a worthwhile purchase, especially if they are looking for something functional and straightforward.
There are a few minor areas where it could be improved, but they do not significantly impact the overall experience. Considering its features, usability, and affordability, this product is a good choice for anyone seeking a dependable option without overcomplicating things.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 31, 2026
★★★★★ 5
Tasty Combo That Doggo Loves
These chicken wrapped peanut butter biscuits are a big hit. My dog comes running as soon as he hears the bag open. The only downside is they can be a little messy depending on how your dog eats, but nothing too bad. Overall, they’re a great treat that most dogs will love and look forward to.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 10, 2026
★★★★★ 5
Dogs really liked them
Flavor Name: Peanut Butter, Size: 20 Count (Pack of 1)
Does loved them and keeps them busy, that is a big plus
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
★★★★★ 5
Non rawhide dog chews!!
Flavor Name: Peanut Butter, Size: 20 Count (Pack of 1)
Non rawhide very well liked by dog. Will buy again. Thanks
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 25, 2026
recommand products
Hayman Reese - Towbar To Suit Nissan MURANO AWD SUV 08/2005 On
514.00
Hayman Reese - Towbar To Suit Jeep COMPASS / PATRIOT MK Wagon 03/2007 - 09/2017
474.50
SOMD Lady Sabres Lace Up Pullover Hooded Sweatshirt
56.00
24669 - Trixie Food & Snack jar, 2.2L
11.04
Wash U New Era Ladies Tri-Blend Fleece Pullover Hoodie
52.95