Intake Manifold – Vortec Head Design


  • Aluminum high-rise manifold
  • For 283-400-cubic inch engines using Vortec heads
  • 4 bolts per side
  • Accepts a square-bore 4150-style carb
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SKU: 12366573 Categories: ,

Intake Manifold, Vortec Head Design

P/N 12366573

– Designed for 283-400-cubic-inch engines using Vortec cylinder heads P/N 12558060, P/N 19300956, P/N 19300955, P/N 19331470, or P/N 19331472
– Has 4-bolts per side to attach it to these cylinder heads
Aluminum high-rise design maximizes horsepower and delivers a broad torque curve
– Accepts a square-bore 4150style carb and includes externally plumbed hot water crossover passage
– Use manifold gasket P/N 89017465 and eight attachment bolts, P/N 12550027

Additional Required Components:

  • Gaskets (1) 89017465
  • Bolts (8) 12550027

Engine Application: 19258602, 19351532, 19351533

Note: Vortec heads were originally released on 1996-1999 truck engines. Check for hood clearance, especially with Corvette.

Open carburetor spacer is not recommended for use with dual-plane intake manifolds.


Intake Manifold, Vortec Head Design

12366573 Chevrolet Intake Manifold

For 283-400-Cubic-Inch Engines with Vortec Heads

Intake manifolds distribute the air/fuel mixture to the appropriate cylinders. Intake manifold design is geared toward the end usage, whether that is a street performance engine or an all-out competition application. The wide range of Chevrolet Performance intake manifolds means there is an ideal manifold for your every need. There are cast-iron and aluminum intake manifolds for carbureted and fuel injected applications. Chevrolet Performance intake manifolds were designed specifically for GM engines, so you know they will deliver O.E. performance.

Prop65WARNING: These auto parts can expose you to chemicals including phthalates and lead. Installing or using these parts can expose you to other parts containing these chemicals and to engine exhaust, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to