Intake Manifold 1957-1986 262ci-400ci, 1987-later with Aluminum Heads
The new single plane intake manifold is designed to provide a broad RPM powerband for high-performance street/strip engine applications to a maximum engine speed of 7500 RPM. The carburetor-mounting pad is designed to accept all stock or aftermarket square-bore carburetors with manual or electric chokes. These intake manifolds are designed to accept most stock hardware and accessory brackets, but offer performance features, like an updated plenum divider area, a 1" shorter height than the 300-25 manifold, and a choice of two distributor clamp locations. The isolated design of the air/fuel passages helps to increase charge air density and performance.
  • Power band: 2500-7500 RPM
  • Square Bore Carburetor Mounting Flange
  • Isolated Water cross-over
  • Port Size: 1.92” height 1.20" width
  • Height: Front 4.18", Rear 5.28"
  • Single Plane with Isolated Plenum

Information:

Modification to the valve covers may be required when this manifold is used with some types of cylinder heads.

Application Summary:

Year Make/Model
1965-1974 Avanti II
1976-1985 Avanti II
1977-1981 Buick Century
1978 Buick LeSabre
1982 Buick LeSabre
1977-1986 Buick Regal
1977-1979 Buick Skylark
1966-1974 Checker Aerobus
1969-1970 Checker Deluxe
1965-1982 Checker Marathon
1969-1974 Checker Taxicab
1959 Chevrolet 3B
1959 Chevrolet 3C
1959 Chevrolet 3D
1959 Chevrolet 3E
1959 Chevrolet 3F
1959 Chevrolet 3G
1955-1975 Chevrolet Bel Air
1981 Chevrolet Bel Air
1958-1972 Chevrolet Biscayne
1969-1974 Chevrolet Blazer
1958-1961 Chevrolet Brookwood
1969-1972 Chevrolet Brookwood
1975-1986 Chevrolet C10
1960-1974 Chevrolet C10 Pickup
1967-1986 Chevrolet C10 Suburban
1975-1986 Chevrolet C20
1960-1974 Chevrolet C20 Pickup
1967-1986 Chevrolet C20 Suburban
1975-1986 Chevrolet C30
1960-1974 Chevrolet C30 Pickup
1960-1962 Chevrolet C40
1967-1986 Chevrolet Camaro
1966-1986 Chevrolet Caprice
1964-1973 Chevrolet Chevelle
1963-1968 Chevrolet Chevy II
1955-1982 Chevrolet Corvette
1984-1986 Chevrolet Corvette
1957-1958 Chevrolet Del Ray
1959-1960 Chevrolet El Camino
1964-1986 Chevrolet El Camino
1969-1970 Chevrolet Estate
1975-1986 Chevrolet G10
1968-1974 Chevrolet G10 Van
1975-1986 Chevrolet G20
1967-1974 Chevrolet G20 Van
1975-1986 Chevrolet G30
1970-1974 Chevrolet G30 Van
1958-1985 Chevrolet Impala
1975-1986 Chevrolet K10
1960-1974 Chevrolet K10 Pickup
1967-1986 Chevrolet K10 Suburban
1975-1986 Chevrolet K20
1967 Chevrolet K20 Panel
1960-1974 Chevrolet K20 Pickup
1967-1986 Chevrolet K20 Suburban
1977-1986 Chevrolet K30
1968-1974 Chevrolet K30 Pickup
1975-1986 Chevrolet K5 Blazer
1959-1961 Chevrolet Kingswood
1969-1972 Chevrolet Kingswood
1973-1976 Chevrolet Laguna
1964-1967 Chevrolet Malibu
1973-1983 Chevrolet Malibu
1970-1986 Chevrolet Monte Carlo
1975-1979 Chevrolet Monza
1955-1961 Chevrolet Nomad
1969-1979 Chevrolet Nova
1955-1957 Chevrolet One-Fifty Series
1959-1961 Chevrolet Parkwood
1955-1958 Chevrolet Sedan Delivery
1955-1966 Chevrolet Suburban
Attributes
Barrel Four
Barrels 4, 4
Basic Operating RPM Range 2500-7500
Brand Holley, Holley
California Proposition 65 No
Carburetor Flange 4150 Square Bore
Category Intake Manifolds, Air and Fuel Delivery
Category Filter Intake Manifolds
Clearance Category Intake Manifolds
CNC Ported No
Color Natural, Natural
Construction Cast, Cast
Country of Origin (Primary) CN
Cylinder Head Port Shape Rectangle
Cylinder Head Type Standard
Deck Height 9.025
EGR Port No, No
Emission N/A
Emission Code 3, 3, Off Road
Engine Chevy Small Block V8, Chevrolet Small Block Gen I
Engine Make/Size Chevy Small Block V8
Finish Satin
Flange Style 4150 Square Bore
Front Height 4.180 in., 4.18"
Front Maximum Height 4.18, 4.18
Fuel Injectors Included No, No
Fuel System Type Carb, Carb
Gasket Or Seal Included No, No
Grade Type Performance, Performance
Harmonized Tariff Code (Schedule B) 8409915085
Hazardous Material Code N
Life Cycle Status Code Available to Order
Manifold Type High Rise, High Rise
Material Aluminum, Aluminum
NAFTA Preference Criterion Code B
Number of Carbs One
Part Type Engine Intake Manifold, Engine Intake Manifold
Plenum Finish Natural, Natural
Position Upper
Product Type Manifold, Intake Manifold
Rear Height 5.280 in., 5.28"
Rear Maximum Height 5.28, 5.28
RPM Power Band 2500-7500 RPM
RPM Range 2500-7500
Sale Category Air and Fuel Delivery
SDR Required Flag N
Single Or Dual Plane Type Single Plane, Single Plane
Sub Category Cylinder Block Components, Cylinder Block Components
Throttle Body Bore Diameter 3.6
Throttle Body Gasket Included No
Usage Racing
Vacuum Ports Yes
Warning California Proposition 65, California Proposition 65
Warranty Limited 90 Day, Manufacturer's Limited 90 Day Warranty
GTIN 00090127052136

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