Haytalras 7111 Oldsmobile Small Block High-Rise Dual Plane Square/Spread Bore Intake Manifold 307 330 350 403

7111 High-Rise Dual Plane Intake for Oldsmobile 307, 330, 350 & 403

A high-rise, dual-plane intake manifold for Oldsmobile small-block V8s. Larger plenum and runners match a modified engine with free-flowing exhaust and a bigger cam, for strong top-end power while keeping good throttle response. Power band: 1,500 to 6,500 RPM.

• High-rise dual-plane design, 5.30 in. height
• Carburetor pad takes square-bore carburetors without an adapter
• Operating range: 1,500–6,500 RPM
• Clearance for an HEI distributor
• Extra material above the runners at the port flange for use with 455 heads

Engine Fitment

• 1964–1967 Olds 330 (5.4L)
• 1968–1980 Olds 350 (5.7L)
• 1977–1979 Olds 403 (6.6L)
• 1980–1985 Olds 307 (5.0L)

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

Is my 350 an Olds or a Chevy?

Many 1977-and-later GM cars used engines from other divisions. Check the engine code or block casting; the 7111 fits only Oldsmobile-built engines.

Not sure it fits?

Email haytalras@gmail.com with your vehicle and engine and we'll confirm before you order.