Description
Application: Used lower intake manifold for GM Big Block 7.4L (454) / 8.2L (502) marine engines with multi-port fuel injection — Mercruiser 454 MAG MPI, 502 MAG MPI, and Volvo Penta 7.4Gi / 7.4GSi / 8.2GSi. Cast aluminum, eight-runner design with upper-plenum mounting flange and standard BBC head bolt pattern.
Condition: Used take-off, sold as-is with normal service wear, oxidation, and surface corrosion; not cleaned or pressure-tested.
Buyer must confirm fitment by part number, photos, dimensions, engine model, serial number, and application before purchase. Used marine part sold as-is unless otherwise stated. No returns on electrical, used, special-order, or installed parts.