CADILLAC Valve Covers - PML - 11073 - CADILLAC 331, 365, 390, 429 Valve Covers -
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CADILLAC 331, 365, 390, 429 Valve Covers 6

Part Number: 11073
 Racer Net: $449.00/Pair
 Our Price: $395.95
 You Save: $53.05/Pair (12%)

These PML Cadillac valve covers are designed for 1949 to 1967 Cadillacs with 331, 365, 390, and 429 V8 engines with four bolt valve covers.

PML valve covers are heavy duty and feature classic styling. The fins and script are cast-in (not engraved). Much thicker and stiffer than stock, these valve covers have a machined gasket surface for a secure seal.

On the powder coat finish, the powder coat is shaved off the top of the fins and script.

These valve covers are perimeter mount, with four bolts per cover, included. Some early engines require center bolt mounting and PML does not have valve covers for these engines.

For 1963 to 1967 390 and 429 engines, these valve covers will bolt onto the heads although the shape is different. You will need to use the earlier 1954 specified gasket to get the valve covers to seal on a 429 engine. The 429 gaskets will not work with these valve covers.

Image shows the inside of the cover. Clicking on an image will open a larger image in a separate window or tab.

PML Cadillac valve covers have an open interior and pockets to clear most roller rockers. The picture also shows the thick, precision-machined gasket flange and the four mounting holes on the perimeter.

PML Cadillac Valve Covers, Fins and Script, Inside

Most applications breath through the valley plate so these valve covers do not incorporate a provision for breathers or PCV.


We recommend using the 1949 to 1955 4-bolt gaskets. For example, our customers have reported that FelPro part number 5392 gaskets work well with these valve covers. PML designed these Cadillac valve covers to work with stock gaskets, available at many auto parts retailers.

Note that there are five different gaskets available. Later year gaskets (after 1955) may not work with these covers. Gaskets are not included with the covers.

PML Valve Cover Features:

  • Strong sand-cast aluminum construction
  • Thick side walls and gasket flanges that will not bend when bolts are tightened
  • Mounting hardware included

Dimensions: Click here for dimensions of PML Cadillac 331, 365, 390, 429 valve covers. There is 2.48' from the gasket surface to the top inside surface. On the outside, check for clearance with air conditionering, heating, cruise control and other parts.

Available in Plain, Black, Polished Finishes.
Please select below

Product Notes:
6. This Product requires a signature for delivery from UPS.
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Product Notes:
6. This Product requires a signature for delivery from UPS.


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