Holley Single Plane Intake Manifold- Chevy Small Block V8 - 300-261
$449.95
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The 300-261 intake manifolds are designed for square-bore carburetor applications on 1957-86 262-400cid Small Block Chevrolet engines and SBC engines equipped with 1987-91 L98 aluminum Corvette cylinder heads (non-EGR applications). Also, these manifolds will work with any SBC engine equipped with aftermarket cylinder heads, as long as they have a standard port flange opening and mounting bolt locations.
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.
Holley Single Plane Intake Manifold- Chevy Small Block V8 - 300-261
$449.95
Features:
- 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
Product Specifications:
- Product Details: Intake Manifold 1957-1986 262ci-400ci, 1987-later with Aluminum Heads
- Barrels: 4
- Basic Operating RPM Range: 2500-7500 RPM
- Carburetor Flange: 4150 Square Bore
- Carburetor Quantity: 1
- Carburetor Studs Included: No
- CNC Ported: No
- Color: Natural
- Construction: Cast
- Cylinder Head Port Shape: Rectangle
- Deck Height: 9.025 IN
- EGR Port: No
- Engine: Chevrolet Small Block - 87+ Aluminum Heads
- Flange Style: 4150 Square Bore
- Front Maximum Height: 4.18 IN
- Fuel Injectors Included: No
- Fuel Rail(s) Included: No
- Fuel System Type: Carb
- Gasket Or Seal Included: No
- Grade Type: Performance
- Intake Port Gasket(s) Included: No
- Manifold Type: High Rise
- Material: Aluminum
- Nitrous Bung(s) Included: No
- Part Type: Engine Intake Manifold
- Plenum Finish: Natural
- Product Type: Intake Manifold
- Rear Maximum Height: 5.28 IN
- Removable Runners: No
- Removable Top/Lid: No
- Single Or Dual Plane Type: Single Plane
- Throttle Body Bore Diameter: 3.6
- Throttle Body Gasket Included: No
- Throttle Body Included: No
- Vacuum Ports: Yes
Installation Notes:
Modification to the valve covers may be required when this manifold is used with some types of cylinder heads.