donn0128 wrote:
Take your chances on a bad motor. Personally I would look for something else.
X2
Don and i don't always agree, but as a Blue Oval believer for 43 years. When it came time for a diesel I chose to go with what many consider a less than reliable wrapper, to get a reliable Cummins.
Bought used one owner at 234,000 miles and now at 292,000 miles pulling an 11,000# 5er.
Some surprises along the way, replaced the shocks at 255K, with Bil's well the old were the OEM shocks built in 9/99.
Replaced door gaskets from LMC trucks, only because the drivers side was a bit chewed up at the floor.
I installed a small chip, and an aftermarket lift pump, and change the oil every 10,000 miles with test done at Blackstone labs.
Personally I would steer clear, but it is your money your choice. Many have stated once Bullet Proofed, they are a great engine. We just had a posting from a member that lost a Head Gasket on a 6.4, your choice.
You might go to Powerstroke.org 6.0 section, and do some reading.
Link