trail rate this
NAXJA Forum User
- Location
- Cape Coral, FL
I recently picked up an aluminum valve cover from a 93' 4.0. I have a 98' XJ 4.0 with steel valve cover. What are the benefits, if any, of swaping to the aluminum valve cover?
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To change or not to change
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JEFF
NAXJA Forum User
- Location
- Hamburg Mi
If the valve cover that is on there is not leaking I would leave it alone, I don't see any benitits other than a different oil cap.
trail rate this
NAXJA Forum User
- Location
- Cape Coral, FL
I like the oil cap on my 98' better. I just didn't know if there were performance benefits to the aluminum one.
90Blue_XJ
NAXJA Forum User
- Location
- In yer postz fixin yer spellinz.
No performance difference but the aluminum one is thicker and thus makes your valvetrain quieter. Jeep/Cryco switched to the stamped steel ones to save a few pennies is all. Change it if you want to. It will just make your engine a little easier to be around if you work under the hood with it running.
Dustn525
NAXJA Forum User
- Location
- Redmond, WA
Well if you're concerned the aluminum cover might save you 1/4 lb. to 1.2 lb. in weight.....or not.
5-90
NAXJA Forum User
- Location
- Hammerspace
Dustn525 said:
Cast aluminum cover vice stamped steel? Probably no savings.
The gasket rails on the aluminum cover are thicker - which is a help if you've had trouble getting the gasket to seal. However, "if it ain't broke, don't fix it" applies here. Save it for later, or for a swap with someone for something else you might be more likely to need (not me - I've got three of them in the garage already...)
