Holley 300-263 Chevy Small Block V8 with L31 Vortec cylinder heads EFI SBC 4150 Single Plane Fuel Injection Intake Manifold
Small Block Chevrolet 262-400 cid engines equipped with 1996-2002 (L31) Vortec cylinder heads (non-EGR applications).
Holley 300-263 Chevy Small Block V8 with L31 Vortec cylinder heads EFI SBC 4150 Single Plane Fuel Injection Intake Manifold is not in stock at Fast Lane Spares and will ship direct from supplier
Description
Description
Part Number: 300-263
The new single plane EFI (Electronic Fuel Injection) 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 112-587 and 112-588. 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. Its low profile and single plane design are ideal for Sniper / Terminator TBI installations (dual planes aren't ideal for EFI) Vortec Intake fits most popular GM crate engines equipped with Vortec or Fast Burn Heads including HO engines (like 350 HO), SP Series Engines (SP 350) and ZZ Series Engines (ZZ6).
Features and Benefits
• Single plane design with isolated plenum to keep the air charge cooler
• Small Block Chevrolet 262-400 cid engines equipped with 1996-2002 (L31) Vortec cylinder heads (non-EGR applications)
• Height: Front 4.23", Rear 5.33"
• Port Size: 2.05” height 1.02" width
• Fuel injectors are not included
• Black coated fuel rails with bracket assortment allowing different height fuel injectors
• Lower throttle body mounting height to help with hood clearance
• Power band: 2500-7500 RPM
• 4150 square bore mounting flange to adapt most aftermarket throttle body designs
• Fuel rail designed for maximum throttle lever clearance
Modification to the valve covers may be required when this manifold is used with some types of cylinder heads._x000D_ The fuel rail inlet threads are 9/16-18 for a -6 port.
Specifications
Specifications
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Specifications
Basic Operating RPM Range 2500-7500 Brand Holley EFI Carburetor Flange Square/4150 Carburetor Quantity 1 Carburetor Studs Included No Category Engine CNC Ported No Color Natural Construction Cast Aluminum Construction Cast Cylinder Head Port Shape Rectangle Deck Height 9.025 EGR Port No Emission Code 3 Engine Chevrolet Small Block Gen II (LT Based) Flange Style 4150 Square Bore Front Maximum Height 4.18 Fuel Injectors Included No Fuel Inlet 9/16-18" Fuel Rail(s) Included Yes Fuel System Type EFI 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 EFI Intake Manifold Rear Maximum Height 5.33 Removable Runners No Removable Top/Lid No Single Or Dual Plane Type Single Plane Sub Category Cylinder Block Components Throttle Body Bore Diameter 3.6 Throttle Body Gasket Included No Throttle Body Included No Vacuum Ports Yes Warning California Proposition 65 Warranty Manufacturer's Limited 90 Day Warranty -
Instructions
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