Description
This listing includes a pair of remanufactured cylinder heads for the Nissan 3.0 L DOHC V6 engine used in non-turbo applications (1990–1992), identified by casting 30P. These heads are professionally rebuilt to restore proper sealing, compression, and long-term reliability — ideal when original heads are cracked, warped, or showing signs of wear.
Casting Number (Important Reference)
Casting Number: 30P
Before ordering, verify that your original cylinder heads show casting 30P to ensure this set matches your engine.
Rebuild Process & Quality Assurance
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Complete disassembly and thorough hot-tank cleaning to remove carbon deposits, oil buildup, and old gasket material.
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Head castings are pressure tested to confirm structural integrity and detect any cracks before reassembly.
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New valve stem seals installed; valve guides replaced where needed to restore proper sealing and valve alignment.
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Precision multi-angle valve seat work performed to restore correct sealing and airflow.
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Deck surfaces precision machined to a smooth, flat finish — ensuring proper head-gasket sealing.
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Final cleaning, inspection, measurement, and assembly — heads ship rebuild-complete and ready to install.
Key Features & Benefits
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Condition: Remanufactured — rebuilt for reliability and long service life
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Engine Compatibility: Nissan 3.0 L DOHC V6 (non-turbo)
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Casting Number: 30P — verify this number on your original heads
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Delivered rebuild-complete — new seals, surfaced decks, and valve work done
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No core charge required — you keep your original heads
Shipping & Handling
Shipped via standard carrier with tracking. Cylinder heads are packaged securely to protect machined surfaces, valve seats, and internal passages during transit.
