engine rebuild

[norrisboat]

How often should you rebuild the engine in a 400.

[UglyMotha™]

when it needs it, the only reason i can think of that you would need to rebuild it is if A. the compression is low B. it's burning oil like a mofo or B. it blew up

[norrisboat]

someone was also telling me that if it becomes hard to start.

[StreetLegalEX]

Compression is low -> harder to start.