So I just purchased an 08 525 IRS w/ a blown motor. Everything else is in great shape. My friend who will be doing the work already owns an 06 500 IRS and an 08 525 IRS.

The motor was already torn down and my questions are these: if I need a new cylinder, head, crank, rod, piston etc… Are these all available retail still? Also if I need all of that the cost will appear to be comparable to buying the THUMPER 549 kit. Would that be a wise option as well. I’m really more interested in reliability than power as the stock ktm has all the power I need but thought if the price is similar it’s worth the upgrade. Any tips/advice would be appreciated.