anthrax323
NAXJA Forum User
- Location
- San Antonio, TX
My 2001 XJ made it 240,000 miles before breaking a piston skirt. I can say with 99.999% confidence this is the original 0331 head (non-TUPY), as I've owned it since ~110,000 miles. Never had a single issue with it.
Given that it made it this far, is it reasonably safe to assume that I have one of the good 0331 heads? Or should I plan on locating a TUPY or other aftermarket head as part of the build?
Given that it made it this far, is it reasonably safe to assume that I have one of the good 0331 heads? Or should I plan on locating a TUPY or other aftermarket head as part of the build?