denis
(O) toyota nut (O)
oh boy...
the 2L, 2LT is a different head than the 2LTE.
the 2L/2LT had head cracking AND valve guide/seat problems.
the 2LTE/3L heads have head cracking problems.
both were approved by an engineer somewhere down the line.
The head itself is just a component of the engine. The head won't fail if you leave it with no engine attached to.