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  Home > Jeep Accessories >

  Jeep 258 Cu. In./4.2 Liter 6 Cylinder Valve Cover PML-8656
Jeep 258 Cu. In./4.2 Liter 6 Cylinder Valve Cover PML-8656


 
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Our Price: $190.00


Product Code: PML-8656


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Description Technical Specs
 

PML's Jeep valve cover for the 258 (4.2 liter) V6 engine were designed based on the original valve cover as it came from the factory. We use sand-cast aluminum construction to provide strength and durability and a cast-in baffling system. The gasket flange is precision-machined and 0.200-inch thick for a uniform clamping force on the gasket.

The cover includes a billet oil fill cap for a secure seal and features holes for PCV and breather. The Jeep 4.2 Liter/258 cubic inch engine comes in four possible fastener configurations. The PML valve cover works with all possibilities and has provisions for the use of studded bridges and head bolts. Holes can be easily drilled for studded rocker arm bridges (see the link for the installation instructions below) or PML can drill them for an additional cost. Call if you need these holes drilled.

PML's baffling system allows the engine to breath better then most. We have some street applications that do not run any breathers on our covers, and there is no blow by. This baffling system works very well as compared to others since we run along the side wall and pick up lower than most.

Blow-by is not a situation that any valve cover can stop. PML's Jeep valve cover can reduce the oil mist somewhat since the design is longer and there is a elbow that will usually separate the oil from the air, allowing it to drip down. The baffling is an integral part of the casting so there are no rivets or screws to vibrate loose.

PML Jeep Valve Cover Baffles

Click on image at right for larger view.

The 258 engine was commonly used in the CJ-5, CJ-7, Grand Wagoneer, Wrangler, and other Jeeps. This 258 valve cover has also been installed on an AMC Eagle.

Note: If your head has been modified (for example, the locator dowel pin holes have been drilled and tapped), our cover will not work for you.

This valve cover fits 1981-1986 heads.

This valve cover also fits 1987-1990 heads if your engine came with the plastic valve cover. If your 1987-1990 engine came with an aluminum valve cover from the factory, our valve cover will not fit your head. Engines with the aluminum valve cover have the same gasket shape and bolt pattern as the 4.0 heads. Look at the installation instructions (click here) for a better view of the gasket shape and bolt pattern on this valve cover and verify it is the same as the valve cover you have.

For Jeep 258 cu. in./4.2 Liter Valve Cover installation instructions, click here.

PML Jeep Valve Cover, installed, driver's side PML Jeep Valve Cover, installed

PML's Jeep valve cover installed. Cast finish.

Features

PML Valve Cover Features

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

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