Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 14 - Jul 19
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Mr. Gasket Ultra-Seal Valve Cover Gaskets - 5867Overview: Ultra Seal is Mr. Gasket premium valve cover gasket material. It's manufactured from a high density cork and rubber blend with a black latex coat applied to the outside to help seal minor flange irregularites and eliminate oil leakage. It creates a positive seal by controlled swelling of the gasket material when exposed to hot oil. For original equipment replacement, high performance street, drag race and oval track use. Sold as a pair,
Overview:
Ultra-Seal is Mr. Gasket premium valve cover gasket material. It's manufactured from a high density cork and rubber blend with a black latex coat applied to the outside to help seal minor flange irregularites and eliminate oil leakage. It creates a positive seal by controlled swelling of the gasket material when exposed to hot oil. For original equipment replacement, high performance street, drag race and oval track use. Sold as a pair, these gaskets are .187 inch thick. They fit both 1987-2002 Gen I Chevrolet Small Blocks as well as 1992-1997 Gen II LT-Based Small Blocks.
Features:
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| 1988 - 1995 | GMC | K2500 | 350/5.7 V8 | |
| 1988 - 1995 | GMC | K2500 | 305/5 V8 | |
| 1992 - 1995 | GMC | K2500 Suburban | 350/5.7 V8 | |
| 1988 - 1995 | GMC | K3500 | 350/5.7 V8 | |
| 1987 | GMC | R1500 | 350/5.7 V8 | |
| 1987 - 1991 | GMC | R1500 Suburban | 350/5.7 V8 | |
| 1987 | GMC | R1500 | 305/5 V8 | |
| 1987 | GMC | R1500 Suburban | 305/5 V8 | |
| 1987 - 1989 | GMC | R2500 | 350/5.7 V8 | |
| 1987 | GMC | R2500 | 305/5 V8 | |
| 1987 - 1991 | GMC | R2500 Suburban | 350/5.7 V8 | |
| 1987 - 1991 | GMC | R3500 | 350/5.7 V8 | |
| 1987 - 1991 | GMC | V1500 Suburban | 350/5.7 V8 | |
| 1987 | GMC | V1500 | 350/5.7 V8 | |
| 1987 | GMC | V1500 | 305/5 V8 | |
| 1987 | GMC | V2500 | 350/5.7 V8 | |
| 1987 - 1991 | GMC | V2500 Suburban | 350/5.7 V8 | |
| 1987 - 1991 | GMC | V3500 | 350/5.7 V8 | |
| 1992 - 1993 | GMC | Yukon | ||
| 1994 - 1995 | GMC | Yukon | 350/5.7 V8 | |
| 1987 | Pontiac | Firebird | 305/5 V8 | |
| 1987 - 1991 | Pontiac | Firebird | 350/5.7 V8 | |
| 1987 | Pontiac | Grand Prix | 305/5 V8 | |
| 1987 - 1995 | Chevrolet | G20 | 305/5 V8 | |
| 1987 - 1995 | Chevrolet | G20 | 350/5.7 V8 | |
| 1987 - 1996 | Chevrolet | G30 | 350/5.7 V8 | |
| 1988 - 1995 | Chevrolet | K1500 | 305/5 V8 | |
| 1988 - 1995 | Chevrolet | K1500 | 350/5.7 V8 | |
| 1987 - 1995 | GMC | G2500 | 305/5 V8 | |
| 1987 - 1995 | GMC | G2500 | 350/5.7 V8 | |
| 1987 - 1996 | GMC | G3500 | 350/5.7 V8 | |
| 1987 - 1991 | GMC | Jimmy | 350/5.7 V8 | |
| 1987 | GMC | Jimmy | 305/5 V8 | |
| 1988 - 1995 | GMC | K1500 | 350/5.7 V8 | |
| 1988 - 1995 | GMC | K1500 | 305/5 V8 | |
| 1995 | GMC | K1500 Suburban | 350/5.7 V8 | |
| 1992 - 1994 | GMC | K1500 Suburban | ||
| 1987 - 1994 | Chevrolet | Blazer | 350/5.7 V8 | |
| 1992 - 1993 | Chevrolet | Blazer | ||
| 1987 | Chevrolet | Blazer | 305/5 V8 | |
| 1988 - 1995 | Chevrolet | C1500 | 350/5.7 V8 | |
| 1988 - 1995 | Chevrolet | C1500 | 305/5 V8 | |
| 1992 - 1993 | Chevrolet | C1500 Suburban | ||
| 1994 - 1995 | Chevrolet | C1500 Suburban | 350/5.7 V8 | |
| 1988 - 1995 | Chevrolet | C2500 | 305/5 V8 | |
| 1988 - 1995 | Chevrolet | C2500 | 350/5.7 V8 | |
| 1992 - 1995 | Chevrolet | C2500 Suburban | 350/5.7 V8 | |
| 1988 - 1995 | Chevrolet | C3500 | 350/5.7 V8 | |
| 1987 - 1992 | Chevrolet | Camaro | 350/5.7 V8 | |
| 1987 - 1992 | Chevrolet | Camaro | 305/5 V8 | |
| 1987 - 1993 | Chevrolet | Caprice | 350/5.7 V8 | |
| 1991 | Chevrolet | Caprice | ||
| 1987 - 1993 | Chevrolet | Caprice | 305/5 V8 | |
| 1987 - 1989 | Chevrolet | Corvette | ||
| 1990 - 1991 | Chevrolet | Corvette | 350/5.7 V8 | |
| 1987 | Chevrolet | El Camino | 305/5 V8 | |
| 1987 - 1993 | Chevrolet | G10 | 350/5.7 V8 | |
| 1987 - 1995 | Chevrolet | G10 | 305/5 V8 | |
| 1992 - 1993 | Chevrolet | K1500 Suburban | ||
| 1994 - 1995 | Chevrolet | K1500 Suburban | 350/5.7 V8 | |
| 1988 - 1995 | Chevrolet | K2500 | 350/5.7 V8 | |
| 1988 - 1995 | Chevrolet | K2500 | 305/5 V8 | |
| 1992 - 1995 | Chevrolet | K2500 Suburban | 350/5.7 V8 | |
| 1988 - 1995 | Chevrolet | K3500 | 350/5.7 V8 | |
| 1987 - 1988 | Chevrolet | Monte Carlo | 305/5 V8 | |
| 1987 | Chevrolet | R10 | 350/5.7 V8 | |
| 1987 | Chevrolet | R10 | 305/5 V8 | |
| 1987 | Chevrolet | R10 Suburban | 305/5 V8 | |
| 1987 - 1988 | Chevrolet | R10 Suburban | 350/5.7 V8 | |
| 1989 - 1991 | Chevrolet | R1500 Suburban | 350/5.7 V8 | |
| 1987 - 1988 | Chevrolet | R20 | 350/5.7 V8 | |
| 1987 - 1988 | Chevrolet | R20 | 305/5 V8 | |
| 1987 - 1988 | Chevrolet | R20 Suburban | 350/5.7 V8 | |
| 1989 | Chevrolet | R2500 | 350/5.7 V8 | |
| 1989 - 1991 | Chevrolet | R2500 Suburban | 350/5.7 V8 | |
| 1987 - 1988 | Chevrolet | R30 | 350/5.7 V8 | |
| 1989 - 1991 | Chevrolet | R3500 | 350/5.7 V8 | |
| 1995 | Chevrolet | Tahoe | 350/5.7 V8 | |
| 1987 | Chevrolet | V10 | 350/5.7 V8 | |
| 1987 | Chevrolet | V10 | 305/5 V8 | |
| 1987 - 1988 | Chevrolet | V10 Suburban | 350/5.7 V8 | |
| 1989 - 1991 | Chevrolet | V1500 Suburban | 350/5.7 V8 | |
| 1987 | Chevrolet | V20 | 350/5.7 V8 | |
| 1987 - 1988 | Chevrolet | V20 Suburban | 350/5.7 V8 | |
| 1989 - 1991 | Chevrolet | V2500 Suburban | 350/5.7 V8 | |
| 1987 - 1988 | Chevrolet | V30 | 350/5.7 V8 | |
| 1989 - 1991 | Chevrolet | V3500 | 350/5.7 V8 | |
| 1988 - 1995 | GMC | C1500 | 305/5 V8 | |
| 1988 - 1995 | GMC | C1500 | 350/5.7 V8 | |
| 1995 | GMC | C1500 Suburban | 350/5.7 V8 | |
| 1992 - 1994 | GMC | C1500 Suburban | ||
| 1988 - 1995 | GMC | C2500 | 350/5.7 V8 | |
| 1988 - 1995 | GMC | C2500 | 305/5 V8 | |
| 1992 | GMC | C2500 Suburban | ||
| 1993 - 1995 | GMC | C2500 Suburban | 350/5.7 V8 | |
| 1988 - 1995 | GMC | C3500 | 350/5.7 V8 | |
| 1987 | GMC | Caballero | 305/5 V8 | |
| 1987 - 1995 | GMC | G1500 | 305/5 V8 | |
| 1987 - 1993 | GMC | G1500 | 350/5.7 V8 |
Specs:
| Application | Small Block Chevy |
|---|---|
| Bolt Pattern | Center |
| Brand | Mr. Gasket |
| Emission Code | 5 |
| Engine | Chevrolet Small Block Gen II (LT Based) |
| Packaging | Retail - Skin Pack |
| Product Type | Valve Cover Gaskets |
| Valve Cover Gasket Material | Ultra Seal |
| Valve Cover Gasket Thickness | .187" |
| Warranty | Limited 90 Day |
| Weight | 0.44 |
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 2270 reviews
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Product Reviews
★★★★★ 5
My husband loves these shirts
Color: Dark Blue, Size: Large
My husband just loves these shirts. He has one in every color, I think. Great quality, good price, breathable, true to color, and super comfy. Nice enough to wear to a nice dinner but can be dressed down w a pair of shorts and flip flops. By far the best find I have found!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 12, 2026
★★★★★ 5
Soft, smooth breathable material
Color: Black, Size: Large
My teen son is 5'9", weights 150lbs. I ordered up from medium to large.. the shirt fits good, a bit wide but will do the job. Smooth and soft and breathable material,
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
★★★★★ 4
Shrink-wrapped shirt???
Color: Clear Blue, Size: X-Large
This shirt arrived in a vacuum packed clear package which caused wrinkles in the synthetic material.
Instructions to remove the wrinkles are to run the shirt through a wash cycle. Well, that didn't work! I'm hoping a dry cleaning service can steam press the wrinkles out.
Aside from that issue it is a very nice shirt. Sizing good. Fabric thickness and material are very good. Because it is made from polyester and spandex shrinkage will not be an issue.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
★★★★★ 5
Extremely comfortable.
Color: Light Green, Size: X-Large
This shirt is one of my favorites. It fits perfectly and is extremely comfortable. I'm not a paid reviewer.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026
★★★★★ 5
Great size and cut for an athletic build.
Color: Dark Blue, Size: Medium
I have purchased about a dozen different Coofandy long-sleeve and short-sleeve shirts and I absolutely love them. I'm 5'6" and 175 lbs with an athletic build and I wear a medium from this company. For an average build, they may seem a little "undersized", but if your looking for a shirt that really shows your physique these are perfect. I'm normally a Vuori guy for my athletic cut clothing, but these shirt are one quarter the price, a really nice cut, comfortable, and decent quality. They are cheap enough that I added a host of different colors to my wardrobe.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 28, 2026
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