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Exterior Components Body Panels and Components

Mr. Gasket

Ultra-Seal Head Gasket 1957-1995 Chevrolet 262, 267, 283, 305 Gen I Small Block 3.870 Inch Gasket Bore Mr Gasket

$85.95 $79.19 Save $6.76

SKU: M00S 5780G

In Stock
In Stock
Ships by Aug 3
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Description

Part #: 5780G

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 inchFive layer (graphite core/perforated steel outer layers) composite constructionGraphite core has excellent thermo-conductivity-transfers heat away from hot spots in head preventing Gasket burn-outProvides excellent stability, compressibility and high temperature enduranceCoated with high temperature silicone to ensure sealing of engine fluidsWill not brinell (indent) aluminum cylinder headsFor high performance street, drag race and oval track useDetails:Engine: Small Block ChevyCompressed Thickness: 0.028Compression Ratio: Up to 14:1Emission Code: 5Gasket Bore: 3.87Gasket Line: Ultra-SealMaterial: Graphite SteelQuantity Per Pkg.: 1Warranty: Manufacturer's Limited 90 Day Warranty

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

1957-1995 Chevrolet 262, 267, 283, 305 Gen I Small Block - 3.870 Inch Gasket Bore

MIA's Description

The Mr. Gasket 5780G is a head gasket designed for Chevrolet Small Block Gen I engines. It features a 3.870-inch bore and a compressed thickness of .028 inch. This gasket is constructed from multi-layered steel with a flexible graphite core and elastomer coating.

Fitment

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Specifications

BrandMr. Gasket
Part NumberM00S 5780G

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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