Description:
This satin‑aluminum dual‑plane intake manifold is engineered for Chevrolet big‑block V8 engines (396–502 ci) with large oval‑port heads (1975 and earlier). Designed for street and light performance applications, it delivers improved throttle response, low-end torque, and a broad powerband from idle up to ~6,500 rpm. Compatible with square‑bore and spread‑bore carburetors and modern accessories such as HEI, A/C, alternator, and water neck adaptations.