Oldsmobile Small Block V8 Dual Plane Aluminum Intake Manifold - Black

• Dual-plane design improves throttle response

• Broad 1,500-to-6,500 RPM operating range

• Fits Oldsmobile 307, 330, 350 & 403 engines

• Black aluminum construction reduces weight

Upgrade your Oldsmobile small block V8 with the Top Street Performance Dual Plane Intake Manifold. Designed for carbureted Oldsmobile 307, 330, 350, and 403 engine applications, this black aluminum intake manifold delivers improved airflow, stronger throttle response, and increased torque across a broad operating range. Whether you're restoring a Cutlass, upgrading a 442-inspired street build, finishing a muscle car restoration, or improving the performance of a classic Oldsmobile street machine, this intake manifold is engineered to provide the drivability and performance enthusiasts expect.

The dual-plane runner design promotes balanced air and fuel distribution between cylinders while maintaining excellent street manners. Unlike race-oriented intake manifolds that focus primarily on high-RPM horsepower, this design helps improve low-end torque and mid-range performance where street-driven vehicles spend most of their time. The result is responsive acceleration, improved drivability, and dependable performance for cruising, street performance, and mild street/strip applications.

Engineered to perform from 1,500 to 6,500 RPM, this intake manifold supports a wide variety of carbureted Oldsmobile performance combinations. The square-bore 4-barrel carburetor flange is compatible with many popular carburetor setups, making it an excellent upgrade for classic Oldsmobile V8 engines used in street rods, muscle cars, cruisers, and restoration projects.

Constructed from heat-dissipating 6061-T6 aluminum, the manifold helps reduce weight compared to factory cast iron intake manifolds while promoting improved heat management. The black finish delivers a clean, show-quality appearance, while the low-profile design helps improve hood clearance in many applications.

Whether you're upgrading a 350 Rocket-powered Cutlass, improving airflow on a 403 street build, or completing a carbureted Oldsmobile restoration, the TSP Dual Plane Intake Manifold delivers the airflow, drivability, and classic Oldsmobile performance character enthusiasts demand.

Dual-Plane Performance
The dual-plane runner design helps improve airflow distribution and fuel atomization while delivering strong low-end torque, responsive throttle control, and dependable street performance.

Street Performance Design
Designed to operate from 1,500 to 5,500 RPM, this intake manifold is ideal for muscle cars, cruisers, street rods, restoration projects, and mild street/strip combinations.

Performance Features
Features include a square-bore 4-barrel carburetor flange, heat-dissipating aluminum construction, and a low-profile design that can help improve hood clearance in many applications.

Lightweight Aluminum Construction
Constructed from 6061-T6 aluminum, the manifold helps reduce weight compared to factory cast iron intake manifolds while providing durability and a black finish for classic Oldsmobile engine compartments.

Will this intake manifold fit an Oldsmobile 350 engine?
Yes. This intake manifold is designed for Oldsmobile small block V8 applications, including 350 cubic inch engines.

Will this intake manifold fit an Oldsmobile 403 engine?
Yes. Published fitment includes Oldsmobile 403 small block engine applications.

What RPM range is this intake manifold designed for?
The dual-plane design is engineered to perform from idle to approximately 5,500 RPM, making it ideal for street performance applications.

Does this intake manifold improve throttle response?
Yes. The runner and plenum design help improve airflow distribution and throttle response compared to many factory intake manifolds.

Does this manifold have provisions for a factory choke?
No. This intake manifold does not provide provisions for a factory-style choke.

Will this intake fit under a stock hood?
The low-profile design is intended to help improve hood clearance, but final clearance depends on the carburetor, air cleaner, spacer, and vehicle combination used.