Corvette Exhaust Manifold. RH Big Block Replacement: 1966-1974

Revitalize the signature exhaust note of your Corvette with this RH bigblock exhaust manifold, a precise replacement built for 1966–1974 V8 classics. Designed to restore authentic exhaust flow and performance, it’s the dependable choice when you’re rebuilding or maintaining a high‑mile big‑block engine.

Key compatibility details you can trust: this RH (righthand) manifold fits 21/2" exhaust systems and is specified for 1966–1969 427 engines and 1970–1974 454 engines, with or without AIR (Air Injection Reactor). Note 20 confirms its versatility across configurations, ensuring a correct fit whether your Corvette runs with AIR or relies on a non‑AIR setup.

• Precise, bolt‑on fitengineered to align with factory port geometry on the right‑hand bank of the big‑block V8 for a seamless installation and reliable seal.
• Versatile AIR compatibilityworks with or without AIR systems, simplifying restoration projects or power‑train updates without needing multiple manifold variants.
• 21/2" exhaust readinessready to pair with your existing exhaust system for optimal scavenging, improved exhaust flow, and a more consistent engine sound.
• Dedicated to classic Corvette setupsthe 427 (1966–1969) and 454 (1970–1974) configurations are specifically accounted for, preserving authentic performance characteristics.
• Practical restoration valuehelps eliminate leaks and warping from aged manifolds, restoring power delivery, idle quality, and overall driveability on your 1966–1974 Corvette.

What you’ll get is a straightforward, right‑side exhaust manifold that integrates with your big‑block V8’s routing and header clearance. For best results, pair with a fresh gasket set and inspect surrounding components during installation to maximize sealing integrity and exhaust performance. This replacement is ideal for hobbyists and professionals restoring or maintaining mid‑century Corvette powertrains, delivering reliable operation without sacrificing originality.