Edelbrock Performer RPM Marine Q-Jet Intake Manifold for Big-Block Chevy with Oval Port Heads – Part #2561

Edelbrock part #2561 Performer RPM Q-Jet marine intake manifold is designed for spread-bore carbs but also works with Edelbrock square-bore carbs without adapter on street 396-502 c.i.d. Chevy V8's with large oval-port (1975 and earlier) heads. This marine intake features brass lined water passage and brass flange inserts to cover rear water openings. No provisions for hot air style chokes. Accepts divorced choke, late-model waterneck, air-conditioning, alternator and HEI equipment. Edelbrock Performer RPM Marine Q-Jet Intake Manifold for 396-502 Big-Block Chevrolet w/Oval Port Heads. All Cooling Water Passages are Lined with Brass to Prevent Corrosion. Accepts Q-jet or 4150-Style Square-Bore Marine Carburetor. Non-EGR Chevrolet:Big-Block Mark IV:396 (6.6L)/402 (6.6L)/427 (7.0L)/454 (7.4L)/502 (8.2L)

• Broad Powerband

The Edelbrock Performer RPM Marine Q-Jet Intake Manifold (Part #2561) is engineered specifically for large displacement Chevrolet big-block engines ranging from 396 to 502 cubic inches. Designed to fit street applications, this intake manifold is compatible with spread-bore carburetors and Edelbrock square-bore carbs without the need for adapters. It features brass-lined water passages and brass flange inserts that effectively seal the rear water openings, ensuring durability and corrosion resistance in marine environments. This intake is ideal for high-performance street and marine applications where reliability and power are paramount. The manifold accepts divorced choke setups, late-model water necks, air conditioning components, alternators, and HEI ignition systems, providing versatile installation options for customized builds. Its broad powerband delivers consistent torque and horsepower across a wide RPM range, making it suitable for a variety of performance needs. The design excludes provisions for hot air style chokes, streamlining installation and maintenance. Built with corrosion-resistant materials and engineered for high performance, the Edelbrock Performer RPM Marine Q-Jet Intake Manifold ensures optimal cooling and power output in demanding marine and street environments. This part is not CARB approved but is engineered to meet the rigorous demands of high-performance applications, making it a top choice for enthusiasts seeking reliable, high-quality components for their big-block Chevy engines.

Features:

• Brass-lined water passages for corrosion resistance

• Compatible with spread-bore and square-bore carburetors without adapters

• Accepts divorced choke, late-model water necks, air conditioning, and HEI systems

• Broad powerband for consistent high-performance across RPM range

• Designed specifically for large-displacement Chevrolet big-block engines (396-502 CID)