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The Edelbrock/Musi 555 big‑block Chevy crate engine delivers 676 hp and 649 ft‑lbs of torque on 91‑octane pump gas and features Edelbrock E‑CNC cylinder heads that are fully CNC‑ported for improved airflow. The carbureted package includes a Victor Jr. intake manifold and an 800 cfm Thunder Series AVS carb, and uses stock‑location exhaust ports for compatibility with off‑the‑shelf headers. Assembled by Pat Musi and backed by a 2‑year unlimited‑mile warranty.
Edelbrock Crate Engine Edelbrock/Pat Musi 555 RPM XT BBC 675 HP Stock Exhaust Port Location
