Holley SBC 4150 Single Plane Intake Manifold - Chevy Small Block V8 with L31 Vortec cylinder heads

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Overview 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 R PM. 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 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 cooler charge air density and performance. | 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). Small Block Chevrolet 262-400 cid engines equipped with 1996-2002 (L31) Vortec cylinder heads (non-EGR applications) Features 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) Power band: 2500-7500 RPM Port Size: 2.05” height 1.02" width Height: Front 4.23", Rear 5.33" 4150 square bore mounting flange to adapt most aftermarket throttle body designs Show more