Small Block Chev 305 327 350 400 Dual Plane Intake Manifold Black

Take your carbureted small‑block Chevy to the next level with this Classic Dual Plane Intake Manifold in a durable black finish. Designed for 262‑400 cubic inch Small Block Chev engines, it delivers steady air and fuel flow from idle up to 5500 RPM for enhanced performance and driveability—without sacrificing street manners.

Design & Performance Highlights

• Dual‑plane configuration optimized for torque and mid‑range power, ensuring a smooth, even fuel/air distribution across the operating range.
• Idle to 5500 RPM operating range tailored for carburetted applications, providing strong pull from stop‑light to highway cruising.
• Spread bore carburetor pad with an included adapter plate to convert to square bore, expanding compatibility with a wide range of aftermarket carbs.
• EGR model compatible with exhaust emissions components; includes EGR block‑off plate and gasket if emissions control isn’t required.
• Special adapter bushings included to fit later model cylinder heads (1987–1995); choose angled bushings to bolt on accessories or straight bushings if no accessories are used.
• Backed by a complete kit: adapter plate and bushings ensure broad compatibility with late‑model water necks, air conditioning, alternator, and HEI ignition setups in most installations.
• Black finish not only for aesthetics but also for durability in harsh engine bay environments.

Compatibility & What’s Included

• Fits Small Block Chevy engines 262‑400 cubic inches.
• Includes EGR components with optional block‑off plate and gasket for emissions‑free setups.
• Adapter plate converts spread bore pattern to square bore for a wide range of aftermarket carburetors.
• Adapter bushings included (angled or straight) to accommodate accessories or clean installation on 1987–1995 cylinder heads.

Why Choose This Dual Plane Manifold

If you’re rebuilding or upgrading a carbureted small‑block Chevy, this manifold offers a practical blend of performance, versatility, and emissions compatibility. Its dual‑plane design helps maximize low‑to‑mid‑range torque, while the included adapters and bushings broaden carburetor options and head compatibility—making it a thoughtful, race‑ready choice for street cars, hot rods, and restoration projects alike.