7561 53026 Air Gap Intake Manifold Dual Plane Aluminum Compatible with Chevy Big Block BBC 396 402 427 454 6.5L 6.6L 7.0L 7.4L V8 Engine 1966-2000

Features

• BBC INTAKE MANIFOLD COMPATIBILITY: Designed for Chevy Big Block BBC 1966-2000 396, 402, 427, 454, 6.5L, 6.6L, 7.0L, 7.4L V8 engine with oval port cylinder heads. Reference part numbers: 3026, 53026, 7561, 1-147-019, PCE147.1034. Note: Fits standard deck height BBC engines equipped with oval port heads and 4-barrel square bore carburetors. Intended for applications operating within the 1,5006,500 RPM range.
• BROAD-RANGE STREET DRIVABILITY: Designed for a 1,5006,500 RPM operating range, this intake manifold supports smooth takeoff, stable cruising, and consistent engine operation from lower speeds through the middle and upper portions of the range. It is suited to street-driven applications requiring balanced drivability across a wide range of engine speeds.
• DUAL-PLANE AIR-GAP CONFIGURATION: The dual-plane layout separates the intake passages to help distribute the air-fuel mixture evenly between the cylinders. The air-gap section separates the runners from direct contact with the heated valley area, helping maintain stable intake-charge conditions during operation. Designed for compatible 4-barrel square-bore carburetor setups. Designed for compatible oval-port cylinder heads.
• INSTALLATION-FRIENDLY DESIGN: Precision-cast to match standard deck oval port cylinder head configurations, OXYSTAR manifold supports proper fitment and sealing when correctly installed. Complete intake section included. Intake manifold height: 5.220 inches. Comes with 1 intake manifold.
• DURABLE ALUMINUM CONSTRUCTION: Made from high-grade aluminum with a silver finish to help withstand engine-bay heat and corrosion. The solid construction is suitable for long-term use in compatible gasoline intake systems.