engine identification

[PitchBlackC3]

The LH6 is a flex fuel engine.

It is AFM, but I don't think it is Flex Fuel.
I thought it was
LY5-iron block non-flex /
LH6 alloy block non-flex /
LMG iron block FLEX
LC9 alloy block FLEX

[yellowbu]

ok, how about how difficult would this swap be to put in my 01 gmc? I was reading about a dod and had no clue what they were referring to. Im thinking ill need a ls3 valley cover and a cable drive tb.

[Frenchy]

And you gotta move the knock sensors and run a box to convert the 58 tooth reluctor wheel signal to a 24 tooth signal. Lingenfelter makes the box.

[yellowbu]

thanks frenchy