GM Performance 12366573 - GM Performance Parts Intake Manifold
GM Performance #809-12366573Vortec Intake Manifold |
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GM Performance 12366573 - GM Performance Parts Intake Manifold Details
Chevy Small Block
Designed for 283-400-cubic-inch engines using Vortec cylinder heads 809-12464298 and 809-12558060. This manifold only has four bolts per side to attach it to these cylinder heads. High-rise design maximized horsepower and delivers a broad torque curve. It accepts a square-bore 4150-style carburetor and includes externally plumbed hot water crossover passage.
Small Block Chevy
This aluminum intake manifold was developed to fit 18° heads and NASCAR's shorter tracks and has smaller runners and less plenum volume to enhance midrange torque. This manifold has worked well on Trans-Am engines. Big Block Chevy This high rise intake manifold (spread bore with dual bolt pattern) is designed for all big-block Chevrolet 396/502ci engines with our current oval port aluminum heads for 1975 and earlier large oval port iron heads. This manifold is has been "CNC" port matched this manifold with our oval port aluminum cylinder head. This is the latest in design and technology in dual-plane manifolds. There are no provisions for a hot air choke, but it will accept a divorced choke or electric chokes on the carburetor.
