2019 DFM DELETE HELP

Chris383cc · January 15, 2023

Hey all I am looking for insight on deleting the dfm system on my 2019

I have the 5.3 L84 engine.

I have the engine apart already and all parts on order.

As much research as I did I am now getting conflicting info about the Camshaft.

Per the website and what I researched the cam needed to be swapped out to non dod cam.

I ordered that one but now I am getting info that the cam possibly does not need to be swapped on this particular engine even when replacing all the lifters to non dfm style.

Can anyone confirm either way??

SteveP45 · January 15, 2023

For a few hundred dollars you could purchase an inline tuner to disable dfm, no disassembly or rebuild required.

Shall36 · January 16, 2023

Maybe check the Texas Speed and Michigan Motor Sports to see if their DFM delete packages include a cam?

RobZ · January 20, 2023

I cant help you but I am interested in the results of your DOD delete.

Bikerjon · January 21, 2023

Why did you take the engine apart? Was the engine damaged (lifter or pushrod failure) or are you trying to disable DFM?

schindles · April 19, 2023

So what did you ever end up finding out about the camshaft? I emailed Michigan Motorsports and they replied saying that a new oil pump is not needed and a new camshaft is not needed either as long as it's not damaged from failure (mine isn't). I just wanted to confirm that this is correct info for when I decide to do my delete. It just seems odd that you wouldn't need a new one.

silveradosid · April 20, 2023

probably because afm cams have 2 different profiles for dod cylinders and non dod, where as the dfm all cylinders are dod and the cam has the same profile for all cylinders

Wolftrk99 · December 27, 2023

The l84 and l87 engines have 16 of the AFM lifters, the cam has the same profiles on the entire camshaft unlike the DOD/AFM, in theory you should be able to use the stock cam so long as it’s not damaged…. I have been having an issue with the number 8 intake lifter wiping the locators in the lifter trays… the lobe on the cam looks good as far as I can tell, but I have ordered a DFM delete kit and a replacement cam, at this point am researching whether I can use the range DFM disabler with the hardware removed or if I have to suck it up and have my ecm unlocked

Bikerjon · December 28, 2023

On 1/14/2023 at 7:26 PM, Chris383cc said:

Hey all I am looking for insight on deleting the dfm system on my 2019

I have the 5.3 L84 engine.

I have the engine apart already and all parts on order.

As much research as I did I am now getting conflicting info about the Camshaft.

Per the website and what I researched the cam needed to be swapped out to non dod cam.

I ordered that one but now I am getting info that the cam possibly does not need to be swapped on this particular engine even when replacing all the lifters to non dfm style.

Can anyone confirm either way??

Did you get this project finished?

Colin Zwaschka · October 15

On 1/14/2023 at 7:26 PM, Chris383cc said:

Hey all I am looking for insight on deleting the dfm system on my 2019

I have the 5.3 L84 engine.

I have the engine apart already and all parts on order.

As much research as I did I am now getting conflicting info about the Camshaft.

Per the website and what I researched the cam needed to be swapped out to non dod cam.

I ordered that one but now I am getting info that the cam possibly does not need to be swapped on this particular engine even when replacing all the lifters to non dfm style.

Can anyone confirm either way??

My apologies for stirring up an old thread, but did you ever get this resolved? I'm in a similar boat with a collapsed #8 exhaust lift on a 2019 L84. Michigan Motorsports agrees in theory that a cam swap shouldn't be required, but they have not tested it. Texas Speed Performance hasn't tested it, either. Any insight would be greatly appreciated.

Bikerjon · October 17

On 10/15/2024 at 3:58 PM, Colin Zwaschka said:

My apologies for stirring up an old thread, but did you ever get this resolved? I'm in a similar boat with a collapsed #8 exhaust lift on a 2019 L84. Michigan Motorsports agrees in theory that a cam swap shouldn't be required, but they have not tested it. Texas Speed Performance hasn't tested it, either. Any insight would be greatly appreciated.

Chris383cc hasn't posted to this forum since 1/14/2023.