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USA
- USA
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- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 13 - Jul 18
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Mr. Gasket Ultra-Seal Head Gasket - 5807GOverview: 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 4.100 inch, Compressed thickness 0.038 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 |
|---|---|---|---|---|
| 1968 - 1979 | Ford | Ranchero | 302/5 V8 | |
| 1968 - 1972 | Ford | Ranch Wagon | 302/5 V8 | |
| 1968 - 1974 | Ford | Torino | 302/5 V8 | |
| 1998 - 2001 | Mercury | Mountaineer | 302/5 V8 | |
| 1975 - 1980 | Mercury | Monarch | 302/5 V8 | |
| 1978 - 1979 | Mercury | Zephyr | 302/5 V8 | |
| 1997 | Mercury | Mountaineer | ||
| 1968 - 1995 | Ford | Mustang | 302/5 V8 | |
| 1968 - 1996 | Ford | Bronco | 302/5 V8 | |
| 1968 - 1972 | Ford | Country Sedan | 302/5 V8 | |
| 1968 - 1972 | Ford | Country Squire | 302/5 V8 | |
| 1968 - 1972 | Ford | Custom 500 | 302/5 V8 | |
| 1969 - 1983 | Ford | E-100 Econoline | 302/5 V8 | |
| 1981 - 1990 | Lincoln | Town Car | ||
| 1981 - 1983 | Lincoln | Mark VI | ||
| 1977 | Lincoln | Versailles | 302/5 V8 | |
| 1984 - 1987 | Lincoln | Mark VII | 302/5 V8 | |
| 1978 - 1980 | Lincoln | Versailles | ||
| 1988 - 1992 | Lincoln | Mark VII | ||
| 1979 - 1986 | Mercury | Capri | 302/5 V8 | |
| 1987 - 1991 | Mercury | Colony Park | ||
| 1975 - 1980 | Ford | Granada | 302/5 V8 | |
| 1979 - 1980 | Ford | E-350 Econoline Club Wagon | 302/5 V8 | |
| 1996 - 2001 | Ford | Explorer | 302/5 V8 | |
| 1969 - 1983 | Ford | F-100 | 302/5 V8 | |
| 1980 - 1985 | Lincoln | Continental | 302/5 V8 | |
| 1983 - 1987 | Lincoln | Continental | ||
| 1980 | Lincoln | Mark VI | 302/5 V8 | |
| 1987 - 1991 | Ford | Country Squire | ||
| 1968 - 1986 | Ford | LTD | 302/5 V8 | |
| 1979 - 1983 | Ford | E-100 Econoline Club Wagon | 302/5 V8 | |
| 1975 - 1996 | Ford | E-150 Econoline | 302/5 V8 | |
| 1968 - 1993 | Mercury | Cougar | 302/5 V8 | |
| 1979 - 1989 | Mercury | Grand Marquis | 302/5 V8 | |
| 1990 - 1991 | Mercury | Grand Marquis | ||
| 1979 - 1982 | Mercury | Marquis | 302/5 V8 | |
| 1968 - 1977 | Mercury | Comet | 302/5 V8 | |
| 1968 - 1970 | Mercury | Cyclone | 302/5 V8 | |
| 1968 - 1974 | Mercury | Montego | 302/5 V8 | |
| 1968 - 1970 | Ford | Fairlane | 302/5 V8 | |
| 1968 - 1972 | Ford | Galaxie 500 | 302/5 V8 | |
| 1968 - 1970 | Ford | Falcon | 302/5 V8 | |
| 1972 - 1974 | Ford | Gran Torino | 302/5 V8 | |
| 1971 - 1977 | Ford | Maverick | 302/5 V8 | |
| 1972 - 1996 | Ford | F-250 | 302/5 V8 | |
| 1972 - 1980 | Ford | F-350 | 302/5 V8 | |
| 1979 - 1996 | Ford | E-150 Econoline Club Wagon | 302/5 V8 | |
| 1975 - 1991 | Ford | E-250 Econoline | 302/5 V8 | |
| 1979 - 1980 | Ford | E-250 Econoline Club Wagon | 302/5 V8 | |
| 1975 - 1982 | Ford | E-350 Econoline | 302/5 V8 | |
| 1977 - 1979 | Ford | LTD II | 302/5 V8 | |
| 1975 - 1977 | Ford | Bronco | ||
| 1978 - 1979 | Ford | Fairmont | 302/5 V8 | |
| 1975 - 1978 | Ford | Mustang II | 302/5 V8 | |
| 1987 - 1991 | Ford | LTD Crown Victoria | 302/5 V8 | |
| 1968 - 1972 | Ford | Custom | 302/5 V8 | |
| 1969 - 1974 | Ford | E-200 Econoline | 302/5 V8 | |
| 1969 - 1974 | Ford | E-300 Econoline | 302/5 V8 | |
| 1977 - 1993 | Ford | Thunderbird | 302/5 V8 | |
| 1969 | Mercury | Comet | 390/6.4 V8 | |
| 1975 - 1996 | Ford | F-150 | 302/5 V8 |
Specs:
| Application | Small Block Ford |
|---|---|
| Brand | Mr. Gasket |
| Compressed Thickness | .038 inch |
| Compression Ratio | Up to 14:1 |
| Emission Code | 5 |
| Engine | Ford Small Block Windsor |
| Gasket Bore | 4.100 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 499 reviews
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Product Reviews
★★★★★ 5
10/10
Color: Multicolor-4pack-a1, Size: Small
These are some of my favorite underwear. I find myself reaching for these constantly. They're very good quality and very stretchy. I'm 140 5'3 and I got a small they fit great. Someone larger or smaller would fit in the small too. I do stress that the leg holes are a bit tight on my thighs and I don't have thick thighs at all. On someone with thicker thighs I'd say size up to a medium. You can wear these as mid/high waisted or low waisted. They're versatile! The cotton gusset is a plus too❣️
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Reviewed in the United States on May 17, 2026
★★★★★ 5
Better than Haynes at for less money
Color: Multicolor-4pack-a1, Size: XX-Large
I am surprised by the quality of these knickers. They are better than Haynes for less money and when I say they’re better, I mean far better, but I can’t believe how comfortable and STRETCHY best underwear is
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Reviewed in the United States on April 25, 2026
★★★★★ 5
love love love!!
Color: Multicolor-4pack-a1, Size: Medium
like my daily driver now, like i never thought underwear could be this good untill now! have bought 2 4packd and will probably get more in the future :) they are snug but not suffocating, with my darker skin i was worried of them getting darker in that area but so far(3-4 months) they’ve been holding up well and clean easily in the washing with a bit of stain remover!
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Reviewed in the United States on May 19, 2026
★★★★★ 3
Satisfactory
Color: Multicolor-4pack-a1, Size: X-Large
If your wanting an easy on high waisted underwear these work.
They are honestly strange material, a mix of three different things- not bad but different.
Not seamless, might ride up, slightly on the thicker side. Will last a while. Comfortable enough but not amazing.
Got for after a surgery and needed something different- these worked but would I get on a normal day probably not.
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Reviewed in the United States on May 15, 2026
★★★★★ 5
Super soft and comfortable!
I haven't bought new underwear in forever. I used to wear thongs, but now find them incredibly uncomfortable. The last few times I've tried to buy new underwear, the sizing was either way off (I'm a medium, but gave up after having to return them for a large and then extra large) or the quality was horrible (two brands stretch waaaay out and they can fall down while wearing them (I have larger ass-ets, so they shouldn't start to slide down during use). I tried these after buying some bamboo pyjamas and I love them! They are incredibly soft, comfortable, and stretchy. I can use them all day, and they work well, whether I'm lounging on the couch or wearing them under my spandex shorts at the gym, they don't ride up or slide down. They are both comfortable and look sexy, while providing support in all the right places. I haven't had them too long, so I can't speak on the durability, but they appear to be of good quality and I plan to order more, this time without the band.
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Reviewed in the United States on November 13, 2025