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Moroso V8/90° V6 waterneck block-off plate is an aluminum 1/2‑inch block-off designed to seal unused waterneck openings on Chevrolet engines. This purpose-built plate provides a neat, reliable closure for engine coolant passages where a factory neck is removed or relocated. Its compact, machined profile helps maintain coolant routing integrity while simplifying engine bay plumbing.
Moroso Chevrolet V8/90 Degree V6 Waterneck Block-Off Plate - 1/2in - Aluminum
