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

Information:

Holley Performance Emission Code 5: This part is legal for sale or use on Emissions Controlled Vehicles; Uncontrolled (Non-Emissions Controlled) Vehicles; and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations

Application Summary:

Year Make/Model
1977-1980 Buick Century
1991 Buick Commercial Chassis
1978 Buick LeSabre
1977-1980 Buick Regal
1991 Buick Roadmaster
1977-1979 Buick Skylark
1991-1992 Cadillac Brougham
1977-1981 Checker Marathon
1987 Chevrolet Blazer
1976-1986 Chevrolet C10
1976-1986 Chevrolet C10 Suburban
1988-1995 Chevrolet C1500
1977-1986 Chevrolet C20
1976-1986 Chevrolet C20 Suburban
1988 Chevrolet C2500
1990-1995 Chevrolet C2500
1978-1979 Chevrolet C30
1986 Chevrolet C30
1976-1982 Chevrolet Camaro
1984-1992 Chevrolet Camaro
1977-1993 Chevrolet Caprice
1980 Chevrolet Corvette
1976-1987 Chevrolet El Camino
1977-1995 Chevrolet G10
1977-1995 Chevrolet G20
1978-1979 Chevrolet G30
1982 Chevrolet G30
1985 Chevrolet G30
1977-1985 Chevrolet Impala
1977-1979 Chevrolet K10
1981-1986 Chevrolet K10
1976-1986 Chevrolet K10 Suburban
1988-1995 Chevrolet K1500
1977-1978 Chevrolet K20
1980 Chevrolet K20
1985 Chevrolet K20
1977-1978 Chevrolet K20 Suburban
1985-1986 Chevrolet K20 Suburban
1988-1995 Chevrolet K2500
1977-1986 Chevrolet K5 Blazer
1976 Chevrolet Laguna
1976-1983 Chevrolet Malibu
1976-1988 Chevrolet Monte Carlo
1976-1979 Chevrolet Monza
1976-1979 Chevrolet Nova
1987 Chevrolet R10
1987 Chevrolet R10 Suburban
1987 Chevrolet R20
1987 Chevrolet V10
1976-1978 GMC C15
1976-1978 GMC C15 Suburban
1979-1986 GMC C1500
1988-1995 GMC C1500
1979-1981 GMC C1500 Suburban
1983-1986 GMC C1500 Suburban
1977-1978 GMC C25
1977-1978 GMC C25 Suburban
1979-1986 GMC C2500
1988-1995 GMC C2500
1982-1986 GMC C2500 Suburban
1978 GMC C35
1986 GMC C3500
1978-1987 GMC Caballero
1977-1978 GMC G15
1979-1995 GMC G1500
1979-1995 GMC G2500
1977-1987 GMC Jimmy
1976-1978 GMC K15
1976-1978 GMC K15 Suburban
1979 GMC K1500
1981-1986 GMC K1500
1988-1995 GMC K1500
1979 GMC K1500 Suburban
1982 GMC K1500 Suburban
1984-1985 GMC K1500 Suburban
1977-1978 GMC K25
1977-1978 GMC K25 Suburban
1988-1995 GMC K2500
1987 GMC R1500
1976-1977 GMC Sprint
1987 GMC V1500
Attributes
ASIN B004F8Q0F2
Application Small Block Chevy
Bore Diameter 3.870 in.
Brand Mr. Gasket
California Proposition 65 No
Category Engine
Compressed Thickness 0.028 in., .028 inch
Compression Ratio 14:1, Up to 14:1
Country of Origin (Primary) US
Emission Code 5
Engine Chevrolet Small Block Gen I
Engine Make/Size Chevrolet Small Block Gen I
GTIN 00084041022672
Gasket Bore 3.870 inch, 3.870
Gasket Line Ultra-Seal
Harmonized Tariff Code (Schedule B) 8484900000
Hazardous Material Code N
Item Weight 0.500 lbs.
Life Cycle Status Code Available to Order
Material Graphite Steel
NAFTA Preference Criterion Code B
Package Quantity 1
Package Type Retail
Packaging Retail
Position N/A
Product Type Head Gasket
Quantity Per Pkg. 1
SDR Required Flag N
Sub Category Gaskets and Sealing Systems
Warning California Proposition 65
Warranty Limited 90 Day, Manufacturer's Limited 90 Day Warranty
Weight 0.5, 0.5000
part type Engine Cylinder Head Gasket

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Mr. Gasket 5780G GRH STL SHIM HG CHEV 305 1 PC

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