Buick® Nailhead V8 Valley Plate Cover – Downtube & PCV Hole

Complete your engine setup with this Buick® Nailhead V8 valley plate cover featuring a downtube and PCV hole, designed for improved crankcase ventilation and proper engine function.

This configuration allows for efficient PCV system integration while maintaining a secure seal and clean engine appearance. Built for durability and precise fitment, it’s ideal for restoration projects, street performance builds, and custom applications.

Perfect for enthusiasts looking to combine proper ventilation, reliable sealing, and a clean, finished engine bay look.

PML Buick Nailhead valley plate cover includes a a downtube and PCV Hole with a grommet. Breather cap included.

The underside of the cover is baffled.

Available in the polish finish only.

Benefits:

• Heavy duty construction for strength
• Fins for a classic appearance
• Sand cast aluminum
• Baffled
• Mounting bolts included
• Made in USA

Engine configurations vary. PML cannot guarantee fitment.

PML makes a valley plate for the Buick Nailhead V8 in several models to accommodate various engine configurations. All valley plate models feature heavy duty construction for strength and fins for a classic appearance. Like all PML parts, our valley plates are sand cast aluminum and made in the USA.

This model will not not work with the Elco 3x2 Intake. See the base model or the model machined for dual 4 barrel intakes without downtube and PCV hole.

PML designed this valley plate cover for 1953 to 1966 Buick 264, 322, 364, 401 and 425 Nailhead V8 engines.

Engine configurations vary. PML cannot guarantee fitment. PML makes a valley plate for the Buick Nailhead V8 in several models to accommodate various engine configurations.

This model will not not work with the Elco 3x2 Intake. See the base model or the model machined for dual 4 barrel intakes without the downtube and PCV hole.

Baffle

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