Yes they can be rebuilt. The sleeves can be removed if needed. You just need a machine shop capable of doing sleeve work. There are already some worked over engines in the Mustang world. Thats going to be the main benefit to this engine.. How the Mustang world is going nuts over it.

 

75 thousands ant but a drop in the bucket on this one its flipped the speedo at least 5 times on the same Flathead v8 the factory sent it out on! sure it wont win no races but it still runs! (GOOD) with a little smoke on start up a bitch to climb steep grades (won't go over 40 mph any thing over a 7% grade) but it will still do it!

i say you cant beat old school for dependability

 

First all aluminum engines except Chevy vega ,has metal sleeves either removable or
Pressed on when forging . The process is so advanced that there is no problem with
Mixing metals . Unlike Chevy vega it did had actually aluminum cylinders and when they
Went bad they will install iron sleeves.
Second that problem with the oil leak from 4.6 engines was a problem with head gasket
Torque on the last 2 bolts . Due to depending on machines instead of manual labor .

 

Oh as per Cadillac the sleeves are removable for rebuilding. Someone just did not wanted
To go to the trouble of rebuilding your friends engine.

 

I can understand the corrosion issues with aluminum heads on iron blocks. But, wouldn't the same problems exist when steel bolts, studs, and cylinder sleeves are used in aluminum heads and blocks? Seems like over time, galvanic corrosion would eventually do its dirty deed.

 

Plus, isn't there a gasket that separates the aluminum head from the case iron block?