3.0.6 Manifolds

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3.0.6 Manifolds

Markings: Exhaust GPW 9430 f , intake GPW 9425 f

PCV was introduced in February 1943* at which time the intake manifold was drilled and tapped for vent lines. Before February 1943 the intake manifold was not drilled and no bosses were present.

* “Willys-Ford teardown report” AAW#2, p213 states that Nov’42 GPW did not have tapped manifold.

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