Product Details
The new single plane EFI 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 manifold is designed to work with 4150 Style Throttle body EFI systems like the Holley 4150 style flange Universal Throttle Bodies. 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 overall height than most single plane manifolds, and a choice of two distributor clamp locations. The isolated design of the air/fuel passages helps to increase charge air density and performance. The fuel injector bores have back-cut exits in the runners for better fuel atomization. This design points the injectors at an angle to match the intake runner airflow angle. The black coated fuel rails and rail bracket assortment are included with the manifold for any easy installation with the injectors that you choose to use for your combination. Fuel rail designed for maximum throttle lever clearance.
(Injectors are not included)
The 300-260 intake manifolds are designed 4150 style Throttle Body EFI 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.
Also Available: 20-86 Throttle Cable Bracket, 20-87 Kickdown Cable Bracket
Features:
- Single Plane Design with isolated Plenum
- 4150 Square Bore Mounting Flange
- Power band: 2500-7500 RPM
- Height: Front 4.18", Rear 5.28"
- Port Size: 1.92” height 1.20" width
- Lower Throttle Body Mounting height to help with hood clearance.
- Holley laser etched logos on the black coated fuel rails and bracket assortment are included so that you can install the injectors of your choice.
- Fuel injectors are not included
- Fuel rail designed for maximum throttle lever clearance.
Specification
| Brand | Holley EFI |
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| Construction | Cast |
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| Emission Code | 3 |
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| Engine | Chevy Small Block V8 |
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| Finish | Satin |
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| Front Height | 4.18" |
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| Fuel Inlet | 9/16-18" |
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| Fuel System Type | EFI |
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| Manifold Type | High Rise |
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| Product Type | EFI Manifolds |
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| Rear Height | 5.28" |
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| RPM Power Band | 2500-7500 |
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| Warranty | Limited 90 Day |
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| Part Number | 300-260 |
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Delivery & Returns
Billy's Speed Shop ensures the highest standard of service. Therefore we use only most reliable delivery services in the UK what allows us to provide you quick and efficient delivery of your products.
We aim to stock all of the products in our warehouse. However the situation may occur that we currently do not have particular item in stock then we will order it directly from UK supplier. If delivery time will exceed 3 days we will inform you via email or telephone.
Our Delivery Options are as follows:
Parcels up to 2kg and up to £50 of value are being sent via Royal Mail - 1st or 2nd class.
Parcels up to 2kg and £50 - £100 of value are being sent via Royal Mail - 1st or 2nd class - Tracked.
Parcels over 2kg and over £100 of value are being sent via Courier - DPD Tracked.
Bulk or Heavy purchases that weigh over 20 kg are sent on a pallet - Pallex.
