2.5L valve cover mod

[Rubikahn]

I recently did the 4.0 valve cover mod according to cruiser54’s write up. I also scored a metal 2.5L cover off a YJ  last weekend that I’m going to clean up and install on my 87. Is it worthwhile to do the mod on the 2.5L cover as well or is this only beneficial on 4.0? Tia

[eaglescout526]

It probably provides the same benefits as the 4.0L cover. Me personally I do not like the HO valve cover and a bigger task to get other parts for it to install it and get all vac routed, again thats just me, but if I was going down the aluminum cover, I would do the same mode thats done on the 4.0L's if youre gettin that much oil in the air box.

[Rubikahn]

Well I sourced a metal, I’m assuming it’s aluminum,  2.5L cover because I’ve read it seals better than the plastic cover. I couldn’t really tell you if the 87 was getting blow by in the air box because it had an intake tube with a cone filter on it when I bought it. I just figured if I’m cleaning it up to put on why not do the mod on it. If it doesn’t make a difference on the 2.5L then I won’t bother. As far as the hoses, there are two ports on it just like plastic cover. The rear port appears to be in the same spot. The front hose connection is on the side. So I’ll need to cut up some rubber tubing for that. 

[eaglescout526]

I’ve never had an issue with the plastic cover so much as the gaskets keep bulging out and ripping when I torque it to specs. Never any leaks to my genuine surprise. But anywho I’m not saying it’s not a worthwhile upgrade to go from plastic to metal valve cover, I myself just like the aesthetics and correctness of the original cover. Anywho I say do the cruiser mod and run it as a do it while it’s off than later. I’m pretty sure there is a diy for installing the new cover with the parts you will need and where to get them from. 

[cruiser54]

Nothing like a finned aluminum valve cover.....

 

 

[75sv1]

Also, the rear CCV on that looks like an HO. I put a '95 on mine. The twist on is suppose to be an upgrade over the RENIX. I did do a late XJ 97-01 Big CCV hose and fitting upgrade. I also like aluminum VCs. Especially, the krinkle painted ones. Sort of Euro sports car. Then sand off the top of the fins, and clear coat.

[Rubikahn]

Thanks everyone