2009 Yukon...AFM/DOD Delete... I'm an IDIOT!!!

[iamdub]

This cam?

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Most shops provide an LM7 camshaft which is smaller than your stock cam. If you want the same as your stock camshaft without the AFM lobes, then you would get an L33s camshaft.

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Nevermind, I just seen your post right above. The word "Budget" scares me!

According to AMS's site:

"Base Kit Includes:
- AMS MLS head gaskets
- LS7 "style" lifter set with plastic guides
- Enginetech head bolt set
- GM 12689035 OEM 1 bolt Non-AFM camshaft (works with or without VVT)
- GM Non-AFM valley plate
- GM crankshaft bolt
- Timing cover gasket set"



The specs for that 12689035 cam are 190/191, .457"/.466", 114 LSA. So, it's basically a single bolt LM7 cam. Less lift and less duration but the tighter LSA would help to make up for some of the loss, at least in the low end. Probably not enough difference most would ever feel.

 

[iamdub]

The kit I have is from AMS racing. LS7 style cam with all lifters (no springs). The trays the sent don't match the block, and yes I changed the valley cover.

It's an LM7 style cam. The only thing "LS7 style" is that it's a single bolt. The lifters are LS7 style, which is the standard lifter GM uses. At that price, surely they're aftermarket, so beware. Not long ago, another member did an AFM delete with a budget kit and a lifter or two failed very shortly after. He had to tear into the engine again.

What do you mean they don't match the block? The non-AFM trays are different than the AFM ones.

 

[iAmKendrickRay]

Here's what I'm dealing with... How much of a deal is it if i just don't run flex fuel anymore? Also will the lifter trays move around without that support from the block negate of the notch in the tray?

Sent from my SM-N975U using Tapatalk

 

[iamdub]

Here's what I'm dealing with... How much of a deal is it if i just don't run flex fuel anymore? Also will the lifter trays move around without that support from the block negate of the notch in the tray?

Sent from my SM-N975U using Tapatalk

Flex Fuel? You mean running E85? You don't have to run it. It's just an option. My Tahoe is Flex Fuel capable but I run regular 93 octane gasoline in it. I've put E85 in it and it runs fine, as it should. The only vehicles that would have a problem is if they weren't Flex Fuel capable. Flex Fuel vehicles usually have a badge on the body but they all should have a yellow gas cap:




As far as your AFM delete, those new trays are for non-AFM lifters. Yes, there is only one hump in the block. All four lifter trays are the same and can go in any position. With the AFM trays, there are two styles- one with the notch on the left and one with the notch on the right. You'd get two of each for an AFM engine. Since you're deleting AFM, you just install four of the same regular/non-AFM lifter trays (which you have). Ignore that "unused" notch.

 

[iAmKendrickRay]

Flex Fuel? You mean running E85? You don't have to run it. It's just an option. My Tahoe is Flex Fuel capable but I run regular 93 octane gasoline in it. I've put E85 in it and it runs fine, as it should. The only vehicles that would have a problem is if they weren't Flex Fuel capable. Flex Fuel vehicles usually have a badge on the body but they all should have a yellow gas cap:




As far as your AFM delete, those new trays are for non-AFM lifters. Yes, there is only one hump in the block. All four lifter trays are the same and can go in any position. With the AFM trays, there are two styles- one with the notch on the left and one with the notch on the right. You'd get two of each for an AFM engine. Since you're deleting AFM, you just install four of the same regular/non-AFM lifter trays (which you have). Ignore that "unused" notch.

I'm clear on the E85 and its uses. I just didn't know if the trays made a difference. THANK YOU so much for clearing that up. I'll have her buttoned up this weekend.

 

[iamdub]

I'm clear on the E85 and its uses. I just didn't know if the trays made a difference. THANK YOU so much for clearing that up. I'll have her buttoned up this weekend.

We'll be expecting a first start vid!