SKU: 83536647917

Mr. Gasket Ultra-Seal Head Gasket 283-400 Chevrolet Small Block GenI 57-91 5801G

Sale price$46.24 Regular price$51.38
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Ships within 48 hours · Estimated delivery Jul 15 - Jul 20

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For Your Every Summer RSVP, with Code: SUMMER15

Description

Mr. Gasket Ultra-Seal Head Gasket 283-400 Chevrolet Small Block GenI 57-91 5801GOverview: 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 4.190 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
1970 - 1976 Chevrolet El Camino 400/6.6 V8
1976 Chevrolet G10 400/6.6 V8
1970 - 1976 Chevrolet Monte Carlo 400/6.6 V8
1970 - 1972 Chevrolet Townsman 400/6.6 V8
1974 - 1976 GMC Sprint 400/6.6 V8
1972 - 1975 Pontiac Bonneville 400/6.6 V8
1967 - 1975 Pontiac Catalina 400/6.6 V8
1972 - 1974 Pontiac Firebird 400/6.6 V8
1974 - 1975 Pontiac Grand Am 400/6.6 V8
1973 - 1975 Pontiac LeMans 400/6.6 V8
1979 - 1980 GMC K2500 400/6.6 V8
1975 - 1978 GMC K25 Suburban 400/6.6 V8
1979 - 1980 GMC K2500 Suburban 400/6.6 V8
1970 - 1972 Chevrolet Biscayne 400/6.6 V8
1970 - 1972 Chevrolet Brookwood 400/6.6 V8
1970 - 1976 Chevrolet Caprice 400/6.6 V8
1976 - 1978 GMC C15 400/6.6 V8
1979 - 1980 GMC C1500 400/6.6 V8
1976 - 1978 GMC C25 400/6.6 V8
1979 GMC C2500 400/6.6 V8
1978 GMC C25 Suburban 400/6.6 V8
1976 GMC G15 400/6.6 V8
1979 GMC G1500 400/6.6 V8
1975 - 1978 GMC G25 400/6.6 V8
1979 - 1980 GMC G2500 400/6.6 V8
1975 - 1978 GMC G35 400/6.6 V8
1979 - 1980 GMC G3500 400/6.6 V8
1975 - 1979 GMC Jimmy 400/6.6 V8
1975 - 1978 GMC K15 400/6.6 V8
1979 - 1980 GMC K1500 400/6.6 V8
1975 - 1978 GMC K15 Suburban 400/6.6 V8
1979 - 1980 GMC K1500 Suburban 400/6.6 V8
1975 - 1978 GMC K25 400/6.6 V8
1980 GMC C2500 Suburban 400/6.6 V8
1976 - 1978 GMC C35 400/6.6 V8
1979 GMC C3500 400/6.6 V8
1977 - 1978 GMC K35 400/6.6 V8
1979 - 1980 GMC K3500 400/6.6 V8
1975 Oldsmobile Custom Cruiser 400/6.6 V8
1975 Oldsmobile Delta 88 400/6.6 V8
1975 Pontiac Grand LeMans 400/6.6 V8
1975 Pontiac Grandville 400/6.6 V8
1975 Pontiac Grand Prix 400/6.6 V8
1970 - 1975 Chevrolet Bel Air 400/6.6 V8
1975 - 1980 Chevrolet G20 400/6.6 V8
1975 - 1980 Chevrolet G30 400/6.6 V8
1970 - 1976 Chevrolet Impala 400/6.6 V8
1975 - 1980 Chevrolet K10 400/6.6 V8
1975 - 1979 Chevrolet K10 Suburban 400/6.6 V8
1975 - 1980 Chevrolet K20 400/6.6 V8
1975 - 1980 Chevrolet K20 Suburban 400/6.6 V8
1977 - 1980 Chevrolet K30 400/6.6 V8
1974 - 1976 Chevrolet Laguna 400/6.6 V8
1974 - 1976 Chevrolet Malibu 400/6.6 V8
1975 - 1979 Chevrolet K5 Blazer 400/6.6 V8
1970 - 1972 Chevrolet Kingswood 400/6.6 V8
1972 Chevrolet Caprice 402/6.6 V8
1970 - 1971 Chevrolet Chevelle 400/6.6 V8
1976 - 1980 Chevrolet C10 400/6.6 V8
1976 - 1980 Chevrolet C20 400/6.6 V8
1976 - 1980 Chevrolet C20 Suburban 400/6.6 V8
1976 - 1978 Chevrolet C30 400/6.6 V8

Specs:

Application Small Block Chevy
Brand Mr. Gasket
Compressed Thickness .038 inch
Compression Ratio Up to 14:1
Emission Code 5
Engine Chevrolet Small Block Gen I
Gasket Bore 4.190 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:
  1. 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
SKU: 83536647917

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Kevin H.
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★★★★★ 5
RV owner.
Excellent product. Delivers the shine and protection as advertised.
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Reviewed in the United States on May 21, 2026
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Christina Mellies
New York, US
★★★★★ 5
Poli Glow used on bottom portion of the picture
Just put it on 21 foot RV, was impressed with the shine. Key is to make sure the applicator is moist. I periodically dampen with water. Realizing it wasn't going to revive the stickers. Question is How long it will last? What will it look like after it rains? Pictures attached, bottom portion was done with poli glow on June 7,2026 and I have just under a half of bottle left. Maybe I will update once it rains or how long the shine last.
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Reviewed in the United States on June 8, 2026
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Diego
Draper, US
★★★★★ 5
It works miracles
I was amazed by the incredible difference it made on my RV. Check the pictures. The difference is of such a magnitude that we were amazed by the final results. Brought my rig back to life
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Reviewed in the United States on December 1, 2025
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Dan K.
Lake Worth, US
★★★★★ 5
Bringing a 1976 MG Midget to the modern world!
Material Type: 157mil Closed Cell Foam, Style: 157 mil 36 SqFt
I've been restoring a 1976 MG Midget barn find. I bought some Sinless liner to help make the car rattle less and feel more solid. This product is easy to cut, easy to install, and extremely sticky. I used it to line the trunk, the interior, and even some under the hood of the old MG. The adhesive stands up to the brutal temperature of the engine bay, and when (by accident) some fuel spilled onto the foam, it didn't fall apart or turn to mush. Thanks to Siless, the MG now feels like a modern car. The floor pans feel much more solid, the doors make a heftier thud when you close them, and the trunk no longer sounds like a percussion instrument when you touch it. If you know what you're doing, this product will transform the feel of a car. I found that 36 sq ft was enough for my MG Midget, but for a bigger car I would want more. The pattern on the back helped me to cut perfectly measured squares and rectangles. The foam itself doesn't have a strong odor, it works super well, and has held up to several months of changing temperatures (in the Midwest US.)
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Mike S.
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Excellent Car Sound Deadening and Heat Insulation Solution
Material Type: 157mil Closed Cell Foam, Style: 157 mil 36 SqFt
If you're looking for a high-quality car sound deadening and heat insulation material, then the Siless Liner 157 (4 mm) mil 36 sqft is definitely worth considering. This product is designed to offer superior noise reduction and heat insulation for your car, making your driving experience more comfortable and enjoyable. The closed-cell foam material used in this product is of premium quality, and it effectively blocks out external noise and vibrations. This means you can enjoy a quieter and more peaceful ride, even on noisy roads. In addition, the Siless Liner 157 also provides excellent heat insulation, which can help keep your car cooler in hot weather. One of the best things about this product is that it's very easy to install. You don't need any special tools or equipment, and the material can be easily cut to fit any shape or size. It's also very lightweight and flexible, which makes it easy to work with. Overall, the Siless Liner 157 (4 mm) mil 36 sqft Car Sound Deadening Closed Cell Foam & Heat Insulation mat is an excellent choice for anyone looking to improve the comfort and performance of their car. It's a high-quality product that delivers on its promises, and it's definitely worth the investment.
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