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USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 7 - Jul 12
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Mr. Gasket Ultra-Seal Head Gasket - 5780GOverview: Mr. Gasket Ultra Seal Head Gaskets are a five layer (graphite core perforated steel outer layers) composite construction. The graphite core has excellent thermoconductivity (transfers heat) away from hot spots in head preventing gasket burn out. They provide excellent stability, compressibility and high temperature endurance. A high temperature silicone coating ensures sealing of engine fluids. Compatible with cast iron or aluminum heads,
Overview:
Mr. Gasket Ultra-Seal Head Gaskets are a five layer (graphite core/perforated steel outer layers) composite construction. The graphite core has excellent thermoconductivity (transfers heat) away from hot spots in head preventing gasket burn-out. They provide excellent stability, compressibility and high temperature endurance. A high temperature silicone coating ensures sealing of engine fluids. Compatible with cast iron or aluminum heads, they will not brinell (indent) aluminum cylinder heads. Suitable for high performance street, drag race and oval track use. Sold individually.
Gasket Bore 3.870 inch, Compressed thickness 0.028 inch
Features:
- Five layer (graphite core/perforated steel outer layers) composite construction
- Graphite core has excellent thermo-conductivity-transfers heat away from hot spots in head preventing gasket burn-out
- Provides excellent stability, compressibility and high temperature endurance
- Coated with high temperature silicone to ensure sealing of engine fluids
- Will not brinell (indent) aluminum cylinder heads
- For high performance street, drag race and oval track use
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| 1976 - 1983 | Chevrolet | Malibu | 305/5 V8 | |
| 1976 - 1988 | Chevrolet | Monte Carlo | 305/5 V8 | |
| 1983 - 1986 | Pontiac | Bonneville | 305/5 V8 | |
| 1977 - 1992 | Pontiac | Firebird | 305/5 V8 | |
| 1976 - 1992 | Chevrolet | Camaro | 305/5 V8 | |
| 1977 - 1993 | Chevrolet | Caprice | 305/5 V8 | |
| 1980 | Chevrolet | Corvette | 305/5 V8 | |
| 1977 - 1978 | GMC | K25 | 305/5 V8 | |
| 1977 - 1978 | GMC | K25 Suburban | 305/5 V8 | |
| 1988 - 1995 | GMC | K2500 | 305/5 V8 | |
| 1987 | GMC | R1500 | 305/5 V8 | |
| 1987 | GMC | R1500 Suburban | 305/5 V8 | |
| 1987 | GMC | R2500 | 305/5 V8 | |
| 1976 - 1977 | GMC | Sprint | 305/5 V8 | |
| 1987 | GMC | V1500 | 305/5 V8 | |
| 1978 - 1980 | Oldsmobile | Cutlass | 305/5 V8 | |
| 1978 - 1980 | Oldsmobile | Cutlass Salon | 305/5 V8 | |
| 1978 - 1980 | Oldsmobile | Cutlass Calais | 305/5 V8 | |
| 1980 - 1982 | Oldsmobile | Cutlass Cruiser | 305/5 V8 | |
| 1978 - 1980 | Oldsmobile | Cutlass Supreme | 305/5 V8 | |
| 1977 - 1979 | Oldsmobile | Omega | 305/5 V8 | |
| 1977 - 1979 | Oldsmobile | Starfire | 305/5 V8 | |
| 1979 - 1995 | GMC | G1500 | 305/5 V8 | |
| 1981 - 1995 | GMC | G2500 | 305/5 V8 | |
| 1977 - 1987 | GMC | Jimmy | 305/5 V8 | |
| 1977 - 1978 | GMC | K15 | 305/5 V8 | |
| 1981 - 1995 | GMC | K1500 | 305/5 V8 | |
| 1977 - 1978 | GMC | K15 Suburban | 305/5 V8 | |
| 1979 - 1982 | GMC | K1500 Suburban | 305/5 V8 | |
| 1976 - 1979 | Chevrolet | Monza | 305/5 V8 | |
| 1980 - 1995 | GMC | C2500 | 305/5 V8 | |
| 1978 | GMC | C35 | 305/5 V8 | |
| 1986 | GMC | C3500 | 305/5 V8 | |
| 1978 - 1987 | GMC | Caballero | 305/5 V8 | |
| 1977 - 1978 | GMC | G15 | 305/5 V8 | |
| 1977 - 1995 | Chevrolet | G10 | 305/5 V8 | |
| 1976 - 1979 | Chevrolet | Nova | 305/5 V8 | |
| 1987 | Chevrolet | R10 | 305/5 V8 | |
| 1987 | Chevrolet | R10 Suburban | 305/5 V8 | |
| 1987 - 1988 | Chevrolet | R20 | 305/5 V8 | |
| 1987 | Chevrolet | V10 | 305/5 V8 | |
| 1977 - 1978 | GMC | C15 | 305/5 V8 | |
| 1979 - 1995 | GMC | C1500 | 305/5 V8 | |
| 1977 - 1978 | GMC | C15 Suburban | 305/5 V8 | |
| 1979 - 1986 | GMC | C1500 Suburban | 305/5 V8 | |
| 1977 - 1978 | GMC | C25 | 305/5 V8 | |
| 1976 - 1987 | Chevrolet | El Camino | 305/5 V8 | |
| 1978 - 1980 | Pontiac | Grand Am | 305/5 V8 | |
| 1977 - 1980 | Pontiac | Grand LeMans | 305/5 V8 | |
| 1978 - 1987 | Pontiac | Grand Prix | 305/5 V8 | |
| 1977 - 1980 | Pontiac | LeMans | 305/5 V8 | |
| 1983 - 1986 | Pontiac | Parisienne | 305/5 V8 | |
| 1977 - 1979 | Pontiac | Phoenix | 305/5 V8 | |
| 1977 | Pontiac | Ventura | 305/5 V8 | |
| 1991 | Oldsmobile | Custom Cruiser | ||
| 1992 | Oldsmobile | Custom Cruiser | 305/5 V8 | |
| 1978 - 1979 | Pontiac | Sunbird | 305/5 V8 | |
| 1977 - 1981 | Checker | Marathon | 305/5 V8 | |
| 1980 - 1995 | Chevrolet | G20 | 305/5 V8 | |
| 1978 - 1985 | Chevrolet | G30 | 305/5 V8 | |
| 1977 - 1985 | Chevrolet | Impala | 305/5 V8 | |
| 1977 - 1986 | Chevrolet | K10 | 305/5 V8 | |
| 1981 | Chevrolet | K10 | 350/5.7 V8 | |
| 1977 - 1986 | Chevrolet | K10 Suburban | 305/5 V8 | |
| 1977 - 1986 | Chevrolet | K5 Blazer | 305/5 V8 | |
| 1977 - 1986 | Chevrolet | C10 | 305/5 V8 | |
| 1977 - 1986 | Chevrolet | C10 Suburban | 305/5 V8 | |
| 1988 - 1995 | Chevrolet | K1500 | 305/5 V8 | |
| 1977 - 1985 | Chevrolet | K20 | 305/5 V8 | |
| 1977 - 1986 | Chevrolet | K20 Suburban | 305/5 V8 | |
| 1988 - 1995 | Chevrolet | K2500 | 305/5 V8 | |
| 1976 | Chevrolet | Laguna | 305/5 V8 | |
| 1977 - 1978 | GMC | C25 Suburban | 305/5 V8 | |
| 1982 - 1986 | GMC | C2500 Suburban | 305/5 V8 | |
| 1988 - 1995 | Chevrolet | C1500 | 305/5 V8 | |
| 1977 - 1986 | Chevrolet | C20 | 305/5 V8 | |
| 1977 - 1986 | Chevrolet | C20 Suburban | 305/5 V8 | |
| 1988 - 1995 | Chevrolet | C2500 | 305/5 V8 | |
| 1978 | Chevrolet | C30 | 305/5 V8 | |
| 1977 - 1980 | Buick | Century | 305/5 V8 | |
| 1978 | Buick | LeSabre | 305/5 V8 | |
| 1977 - 1980 | Buick | Regal | 305/5 V8 | |
| 1991 | Buick | Roadmaster | ||
| 1991 | Buick | Commercial Chassis | ||
| 1977 - 1979 | Buick | Skylark | 305/5 V8 | |
| 1991 - 1992 | Cadillac | Brougham | 305/5 V8 | |
| 1987 | Chevrolet | Blazer | 305/5 V8 |
Specs:
| Application | Small Block Chevy |
|---|---|
| Brand | Mr. Gasket |
| Compressed Thickness | .028 inch |
| Compression Ratio | Up to 14:1 |
| Emission Code | 5 |
| Engine | Chevrolet Small Block Gen I |
| Gasket Bore | 3.870 inch |
| Gasket Line | Ultra-Seal |
| Material | Graphite Steel |
| Packaging | Retail |
| Product Type | Head Gasket |
| Quantity Per Pkg. | 1 |
| Warranty | Limited 90 Day |
| 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
4.7 ★★★★★
Based on 2310 reviews
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Product Reviews
★★★★★ 3
It’s alright.
Size: Queen, Number of Items: 2
Not bad pillows. They are comfortable but mine came with an odd odor, kind of mildewy smell to it. Had to spray it down to tolerate sleeping on it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026
★★★★★ 5
Nice pillows
Size: Queen, Number of Items: 2
Have had these a few months and so far really like them!
They don’t really feel very cooling, but I also run VERY HOT so it could just be me. The foam holds up well and hasn’t flattened like others I’ve tried.
They come very compacted- I was shocked how much they expanded!
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Reviewed in the United States on March 22, 2026
★★★★★ 5
Mr.b
Size: Standard, Number of Items: 2
The pillows are cool and comfortable
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Reviewed in the United States on May 27, 2026
★★★★★ 5
Awesome Pillow!!!
Size: Queen, Number of Items: 1
This pillow is Amazing!!! So Great to sleep on. I finally can get a good night's sleep!!! Its very soft and comfortable. I also haven’t gotten up with a stiff neck in the morning either!!!
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Reviewed in the United States on May 16, 2026
★★★★★ 5
Love them!!
Size: Queen, Number of Items: 2, Size: Queen, Number of Items: 2
Ok I normally don't leave reviews but I had to on this pillow. I was looking forever for a pillow and was nervous about buying one because you know how that usually goes when it comes to buying pillows. They arrived compressed but when you unwrap them they blow up to be a heavy duty pillow. Firm but not too firm. I don't like super soft pillows that you can roll up in a ball with one hand, I like a pillow that gives support and these do just that. They are cooling as well they are pretty for a pillow with the unique design. If you are in the market for a pillow and reading this THEN BUY THIS PILLOW & come back to tell me thank you. I promise you will NOT be disappointed. No I didn't get paid to say any of this. I wanted to give a honest review where it deserves one! You will not be disappointed! Thanks for the fast over night shipping as well. Not to mention the pricing is on point. I can say right now you will not find 2 pillows of this quality & price.
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Reviewed in the United States on April 1, 2026