We've got a thread about this over on www.jeepstroker.com trying to actually catalog the differences between the early casting and later ones so we can tell for sure what cracks and what doesn't. So far not too many owners of 02 or 03 Jeeps have shown up and I don't think any 04 or later.
Anyone here who has a 0331 laying around or no their Jeep, you can help other Jeepers by taking a couple pics of your cracked OR uncracked head (especially looking for pics of later 02 03 and up heads right now) and going to this thread:
http://www.jeepstrokers.com/forum/vi....php?f=5&t=480
or if the thread link breaks, go there and then to the Stroker and Performance Tech and look for "the 0331 head thread"...
For those who may be curious among other reasons for doing this, is that the 0331's have better intake flow than previous heads, and exhuast ports that may be better for performance porting (smaller higher port more meat to change the shape) that and the fact that it was produced longer than any other HO head, means we'll have plenty of them around for a while.
Anyone here who has a 0331 laying around or no their Jeep, you can help other Jeepers by taking a couple pics of your cracked OR uncracked head (especially looking for pics of later 02 03 and up heads right now) and going to this thread:
http://www.jeepstrokers.com/forum/vi....php?f=5&t=480
or if the thread link breaks, go there and then to the Stroker and Performance Tech and look for "the 0331 head thread"...
For those who may be curious among other reasons for doing this, is that the 0331's have better intake flow than previous heads, and exhuast ports that may be better for performance porting (smaller higher port more meat to change the shape) that and the fact that it was produced longer than any other HO head, means we'll have plenty of them around for a while.
