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1968 Oldsmobile 442 W-30
For 1968 the 4-4-2 became its own Oldsmobile model line, and the W-30 was the factory Outside Air Induction performance package layered on that 442 identity rather than a separate builder conversion. The safest sourced description is therefore a factory-built 1968 Oldsmobile 442 with W-30/OAI equipment, powered by Oldsmobile's long-stroke 400-cu-in V-8 as documented in marque references.
The W-30 record is clone-sensitive. Source-backed review points include the Outside Air Induction under-bumper ducting and dual-snorkel air-cleaner system, red inner fender wells with duct openings, D-cast cylinder heads, manual-brake context for 1968 W-30 cars, mandatory fender rally stripes, and an OW-tag Turbo Hydra-Matic when an original automatic is present. These markers should be treated as evidence to inspect, not as standalone proof without original paperwork and drivetrain stamp review.
Coverage remains intentionally conservative. Published references support the 400-cu-in W-30 identity, 360-hp rating, forced-air/OAI equipment, selected transmission and axle statements, and model-line 442 features such as front disc brakes and F70 tires. Exact factory production by W-30 body/transmission, complete trim-code interiors, and a complete factory option-price matrix require dealer data book, ordering guide, broadcast card, or factory accounting follow-up before publication as hard totals.