Haytalras 2028 Chevy SBC Vortec Air-Gap Dual Plane Square Bore Intake Manifold 1996-2002 305 350

2028 Air-Gap Dual Plane Intake for Chevy Small Block with Vortec Heads

An air-gap, dual-plane intake manifold for Gen I Chevy small blocks using 1996-and-later Vortec (8-bolt) cylinder heads or E-Tec heads. It also fits 1995-and-earlier blocks that have been fitted with Vortec heads. The air-gap design keeps the runners away from engine heat for a cooler, denser charge. Power band: 1,500 to 6,500 RPM.

• Air-gap dual-plane design, 4.65 in. height
• 4150-style square-bore 4-barrel carburetor flange
• Operating range: 1,500–6,500 RPM

Vehicle Fitment (5.0L / 305 and 5.7L / 350 Vortec)

• 1996–1999 Chevrolet and GMC C/K full-size trucks
• 1996–1999 Chevrolet and GMC Suburban
• 1996–2000 Chevrolet Tahoe and GMC Yukon
• 1996–2002 Chevrolet Express and GMC Savana vans
• 1999–2000 Cadillac Escalade

Fitment depends on the cylinder heads, not the vehicle year alone. Full specifications are in the Specifications tab.

What’s Included

• 1 × intake manifold
• The needed bolts and plugs
• Intake manifold gaskets are not included

Why Haytalras

• Built in our own factory. We cast and CNC-machine our intake manifolds in-house. The same factory has produced intake manifolds for Holley, TSP and Professional Products.
• Checked before it ships. Every manifold goes through air-tightness, dimensional and visual inspection.
• Ships from the US. Free shipping from our California and Georgia warehouses, out the door within 24 hours, usually delivered in 3–7 days.
• Backed by us. 30-day free returns and a 1-year warranty on casting defects.

Frequently Asked Questions

How do I know if I have Vortec heads?

Count the intake bolts. Vortec heads use 8 intake bolts (4 per side), installed close to vertical. Conventional SBC heads use 12.

Do I need to do anything extra on a 1996+ block?

Yes. Add the short heater-hose water bypass described above, since 1996+ Vortec blocks don’t have one internally. Read our Vortec carb conversion guide for the full checklist.

Not sure it fits?

Email haytalras@gmail.com with your vehicle, engine and cylinder head casting number and we’ll confirm before you order.