Which years came with AFM? I'm in the market and want to avoid the extra hassle of it. What year make and model do I look for? I've found one from a 2007 Chevy Silverado Vin K option code LY6. Is this what I'm looking for.

 

I dont know what ones do and what ones dont, except for looking at the valley cover.

Smooth = NO AFM
Bumpy = AFM

 

But im subscribing in case there are other ways to identify that someone knows?

 

I can find out, if your really must know, what does and doesnt.

Im lazy, simply looking at the cover works for me.

 

Ok I think I may have found out. The LY6 that doesn't have AFM is 2007-present, and is an iron block. If its 2007-present and has an aluminum block then its RPO Code L76 with AFM and VVT, not to be confused with the L76 car version?? If it came out of a truck that is. I sourced this info from my LSX rebuild book. Both motors are 6.0L. Please correct me if I'm wrong..

 

I thought ALL LY6's had VVT?

-SS

 

LY6 has L92 heads, VVT and does NOT have AFM. I have just finished doing the research and can confirm this. I bought 1 for myself, and am now getting it ready to fit into my 67 camaro

 

I have an 07 6.2L L92 that has VVT but no AFM either. Seems like some L92's have AFM and some do not. Anyone know more about why? As in do certain L92 equipped trucks come afm and some not? Or is it an option? Or???