Odd....... I was pretty sure every 2500HD after the body change had a 6L90E.

 

Lol, I can't explain it. Just like I still don't know exactly what my engine is...GM does weird **** more often than not

 

about 3300-3500$ for the base turbo kit from trick or kbracing and another 1500 for fuel injectors , fuel pump ,and exhaust and youll be at 500hp engine and your good to go

 

Let me go on the record that VVT sucks in a truck. It literally feels like vtec in a civic. Slow slow slow 4000rpm ok have some power shift at 5000 it sucks

 

I thought your current one was an aluminum block out of a hybrid?

 

Lol. Exactly. When my friends used to ride with me in my 09 I would just tell them "It's like a Honda.... you gotta wait for the Vtec to kick in"..... Then it was wait for it..... wait for it..... 4000 rpm hurray...... ah shift point is like 5500.....

 

That's just my best guess. None of us are sure exactly what it came out of.

 

Ah ha. So then it's not an LY6 because it's not an iron block. It's a mystery engine Lol.