L99 valley cover swap without changing lifters - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

stevenwl05 · 11-04-2023, 11:56 PM

I have an L99 with DOD deleted via HPtuners. I happen to have a non-AFM valley cover laying around and I’m wondering if I’m able to just swap it in without swapping lifters or anything else (I’ll be removing my intake manifold and I just want to get it out of my garage lol.)

Any input on the subject would be appreciated.

morepowerjoe · 11-05-2023, 03:24 AM

Yeah as long as it has the o-rings that go under it with the correct gasket kit then your all good.

joshnmn · 11-05-2023, 06:19 AM

Agreed

Also make sure there's an oil pressure sensor port- some don't have them. You'll want to tie off the plug for the solenoids while you're in there.

1JEWLDSSRS · 11-05-2023, 08:52 AM

Quote:

Originally Posted by joshnmn

Agreed

Also make sure there's an oil pressure sensor port- some don't have them. You'll want to tie off the plug for the solenoids while you're in there.

Agreed with these guys...

stevenwl05 · 11-05-2023, 06:08 PM

Much appreciated! Quick question, what exactly do you mean by tie off the solenoid plug?

*Just edited to clarify - I haven’t deleted any other DOD equipment, just turned DOD off within HPtuners*

joshnmn · 11-05-2023, 08:59 PM

Well by changing the valley cover you will be removing about half of "the equipment". There's a plug in the back of it to control the AFM solenoids. I was just saying to tie it down since it won't be plugged in anymore.

stevenwl05 · 11-12-2023, 01:32 AM

*Update*

After swapping the valley cover, after about 10 seconds of starting the car, a loud ticking noise is heard from what sounds like the top end. Any thought?

morepowerjoe · 11-12-2023, 09:50 AM

Quote:

Originally Posted by stevenwl05

*Update*

After swapping the valley cover, after about 10 seconds of starting the car, a loud ticking noise is heard from what sounds like the top end. Any thought?

Do you have a afm disabler or hp tuners to turn the afm off in the tune?

joshnmn · 11-12-2023, 01:47 PM

First post says it was defeated in HPT.

morepowerjoe · 11-12-2023, 05:51 PM

Quote:

Originally Posted by stevenwl05

*Update*

After swapping the valley cover, after about 10 seconds of starting the car, a loud ticking noise is heard from what sounds like the top end. Any thought?

Sorry I missed that in your first post about hp tuners. Well the only thing that would have changed is your valley cover correct? If you now have a lifter ticking really loud I would bet that one of your o-rings under the valley cover didn't seal correctly and it's bleeding oil off that afm lifter passage. Did you use new o-rings with the new valley cover?

11-04-2023, 11:56 PM	#1
stevenwl05 Drives: 2010 Chevy Camaro 2ss Join Date: Aug 2023 Location: Florida Posts: 7	L99 valley cover swap without changing lifters I have an L99 with DOD deleted via HPtuners. I happen to have a non-AFM valley cover laying around and I’m wondering if I’m able to just swap it in without swapping lifters or anything else (I’ll be removing my intake manifold and I just want to get it out of my garage lol.) Any input on the subject would be appreciated.

11-05-2023, 03:24 AM	#2
morepowerjoe Drives: 2012 Chevrolet Camaro l99 Join Date: Aug 2020 Location: Austin, TX Posts: 2,109	Yeah as long as it has the o-rings that go under it with the correct gasket kit then your all good. __________________ DSS FX Forged Pistons, Eagle ESP L19 Forged Rods, ARP Head and Main Studs, TSP PRC 260 CNC Ported Heads milled .030, Cometic .040 Head Gaskets, GPI SS3 VVT Camshaft, GM Performance Racing Lifters, CHE Trunnions , Molly Pushrods, Melling 10355HV Oil Pump, Cold Air Inductions CAI, Fast LSXR Intake Manifold, Nick Williams 103 TB, TSP 1 7/8" Longtubes with 3" TSP Exhaust, ZL1 Fuel Pump, Mishimoto Radiator, Mishimoto Oil Cooler, Tru Cool 40k Tranny Cooler, 3600 Circle D Converter, Fluid Dynamics Balancer Build Thread https://www.camaro5.com/forums/showthread.php?t=609817

11-12-2023, 01:32 AM	#7
stevenwl05 Drives: 2010 Chevy Camaro 2ss Join Date: Aug 2023 Location: Florida Posts: 7	Update - ticking after valley cover swap Update After swapping the valley cover, after about 10 seconds of starting the car, a loud ticking noise is heard from what sounds like the top end. Any thought?

11-05-2023, 06:19 AM	#3
joshnmn 2&THEHIT Drives: 5th Gen Camaro; 5th Gen Ram 3500 Join Date: Mar 2018 Location: Garner, NC Posts: 1,013 View My Garage	Agreed Also make sure there's an oil pressure sensor port- some don't have them. You'll want to tie off the plug for the solenoids while you're in there.

11-05-2023, 06:08 PM	#5
stevenwl05 Drives: 2010 Chevy Camaro 2ss Join Date: Aug 2023 Location: Florida Posts: 7	Much appreciated! Quick question, what exactly do you mean by tie off the solenoid plug? Just edited to clarify - I haven’t deleted any other DOD equipment, just turned DOD off within HPtuners

11-05-2023, 08:59 PM	#6
joshnmn 2&THEHIT Drives: 5th Gen Camaro; 5th Gen Ram 3500 Join Date: Mar 2018 Location: Garner, NC Posts: 1,013 View My Garage	Well by changing the valley cover you will be removing about half of "the equipment". There's a plug in the back of it to control the AFM solenoids. I was just saying to tie it down since it won't be plugged in anymore.

11-12-2023, 01:47 PM	#9
joshnmn 2&THEHIT Drives: 5th Gen Camaro; 5th Gen Ram 3500 Join Date: Mar 2018 Location: Garner, NC Posts: 1,013 View My Garage	First post says it was defeated in HPT.