Haytalras 3037 Chevy BBC Air-Gap High-Rise Single Plane Oval Port Intake Manifold 1965-2000 396 402 427 454

3037 Air-Gap High-Rise Single Plane Intake for Chevy Big Block Oval Port

An Air-Gap, high-rise single-plane intake manifold for Chevy big-block V8s with oval port heads: 396, 402, 427 and 454. Air flows under the plenum to cut heat transfer from the engine. Built for drag racing, oval track and aggressive street/strip engines, with a power band of 3,000 to 7,500 RPM.

• Air-Gap high-rise single-plane design, 6.06 in. height
• 4150-style square-bore 4-barrel carburetor flange
• Operating range: 3,000–7,500 RPM

Engine Fitment

• Chevy big block 396, 402, 427 and 454 with oval port heads

Full specifications are in the Specifications tab.

What's Included

• 1 × intake manifold
• Additional parts as shown in the product photos

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

Single plane or dual plane?

Choose this single plane for an engine that spends its time above 3,000 RPM. For street driving or towing, a dual plane gives more low-end torque.

Not sure it fits?

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