cylinder head

USA_PRIDE · 12-01-2006, 09:39 PM

for those of you that had cylinder head casting #0331 crack, did you just go for another reman. one? the guy i was gonna buy a new aftermarket one ran out and doesnt know when he'll get them back in stock. so does anybody know of any other new aftermarket heads? i really dont want to buy a reman. one

AZ Jeff · 12-02-2006, 07:02 AM

Quote:

Originally Posted by USA_PRIDE

for those of you that had cylinder head casting #0331 crack, did you just go for another reman. one? the guy i was gonna buy a new aftermarket one ran out and doesnt know when he'll get them back in stock. so does anybody know of any other new aftermarket heads? i really dont want to buy a reman. one

Go for a remain head, yes. But go for a head from a slightly older HO engine. I cannot remember the casting number for the previous version (up through about 98), but that's the one you should ask for.

TheSandman · 12-02-2006, 07:55 AM

where is this casting #? I am looking at a 01 Cherokee and was warned about these heads, I looked on the passenger side of the head and couldn't seem to find it.

USA_PRIDE · 12-02-2006, 09:45 AM

the casting number on mine was only visable once i pulled off the valve cover

so your saying that i dont need to get the same casting number on the head, a different head will still work?

USA_PRIDE · 12-02-2006, 10:01 AM

any body know if a head from a '98-'99 will work as a replacement for the cracked one on my 2000?

thanks

AZ Jeff · 12-02-2006, 12:20 PM

Quote:

Originally Posted by USA_PRIDE

any body know if a head from a '98-'99 will work as a replacement for the cracked one on my 2000?

thanks

I am about 95% certain the head you want is the 97-98 head, which has the same geometry as the 2000 head, without the casting flaw.

Go over to Jeeps Unlimited, and find a guy over there who goes by the name of Dino Saava. He is the guru on engine parts interchange on the 4.0, and can confirm this.

**alexrule123** · 12-02-2006, 02:57 PM

get a 98 head..it has bigger exhaust valves then the 99'+ heads

USA_PRIDE · 12-03-2006, 05:44 PM

well i found an aftermarket cylinder head that replaced the #0331 casting from a company called clearwater cylinder heads. they said that the new head is made from a stronger material and is reinforced at the weak points. it set me back $440 but it's a brand new head complete with new valves, springs, and retainers already assembled. all the reman. heads i looked at were between 350-385 so for the extra bit i get some peace of mind. i'll post pics and an update when it arrives and my front door.