LS3 tear down finding at 50k, 20k with GPI SS3 Cam, bushed trunnions, etc - Page 4 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

InFiD3ViL · 05-18-2022, 06:35 PM

Very interested to see how the CHE's are holding up in these builds, since they use a different floating style, non-pressed bushing.

I have about 8k miles left on my springs, based on my schedule and will likely be replacing the CHE's with new or going elsewhere depending on what we learn here ,and what I see on tear down.

1JEWLDSSRS · 05-20-2022, 07:47 AM

Quote:

Originally Posted by InFiD3ViL

Very interested to see how the CHE's are holding up in these builds, since they use a different floating style, non-pressed bushing.

I have about 8k miles left on my springs, based on my schedule and will likely be replacing the CHE's with new or going elsewhere depending on what we learn here ,and what I see on tear down.

Yea, it will be interesting to see how the CHE's are doing, but so far, no one has any pics yet. I guess the OP that posted he had some with 20k on them, didn't have pics to post. Not that 20k miles is going to show much....

Bob570 · 05-21-2022, 09:13 AM

Sorry for the delay guys, here's some pics

Bob570 · 05-21-2022, 09:20 AM

A little information about those pictures:

This is with 20K miles
- first 10K miles was with stock LS1 heads and rev limiter set at 6600
- second 10K mikes was with PRC 225 heads, rev limiter set at 7000, intake valve weighs 108 grams

The cam is a Texas Speed Torquer V2, 232/234 0.600"/0.600"

I used Redline 5w30 oil

morepowerjoe · 05-21-2022, 09:24 AM

Those still look pretty promising. I'm glad I went with them this time around. Thanks for the post and pictures.

morepowerjoe · 05-21-2022, 12:42 PM

Looking more closely at your pictures on my computer I can definitely see the wear on them now. They look like they need to be replaced but what are your thoughts on the wear? Would you replace them now or would you say they could go some more miles?

demonspeed · 05-21-2022, 02:15 PM

I would have absolutely replaced those. They don’t look catastrophic or anything, but the wear is visible.

acammer · 05-21-2022, 02:20 PM

Definitely looks worn, just more evenly, no doubt due to the full floating design letting that move around and spread evenly. I think the original idea of trunnion maintenance intervals should track with valve spring intervals.

Bob570 · 05-21-2022, 04:20 PM

I intend to throw these right back on the new engine and keep beating the tar out of it. They only look slightly more worn than they did at 8k miles (pic below), and to be honest, I'm not sure how much of that is a difference because of the lighting. There is no perceivable play in it when it's assembled. I'll probably check them again at the beginning of each season moving forward, but I expect these will run without any problems for quite some time yet.

demonspeed · 05-21-2022, 06:17 PM

There was no perceivable play when my oblong bushings were installed either. I’m sure you’ll be ok for a bit, but as cheap as they are, I’d replace them with springs. Just basic maintenance really.

1JEWLDSSRS · 05-22-2022, 08:33 AM

Agreed with the above. Looking closely at the pics you can see the wear and scoring on them, as stated just more evenly. As Andrew said, I would just make it a note to replace them when the spring refresh is done, just for safe insurance as they are made of a softer material and do wear. And being that they are so much easier to do than the press ins, yea I would do it for sure. Thanks for the pics sir.

Badbubba · 05-24-2022, 08:48 AM

Just put the C.H.E.'s in my rockers. Also, the bronze bushings, trunions and clips can be purchased separately. Bob570, read some of your posts awhile ago in the LS1 forum.

InFiD3ViL · 06-08-2022, 11:32 PM

Damn, thanks for the pics Bob. Honestly, those don't look that bad and seems reasonable for 20k miles.

Still, I wouldn't have the balls to reinstall them and would replace if I was already in there. Looking forward to when I can afford a nice set of shaft rockers. I only owe $2400 on the car...6 months left! Then the real mods start lol.

Pkeen · 06-13-2022, 07:57 AM

Hi all , I got real curious after seeing all of this ,as I installed the Smith Brothers bushing kit in my 416 stroker. So I pulled them and cked them out ,all were worn even with about .012 wear groove at the bottom with very noticeable wobble, and I have less than 5000 mi on the build. No visible metallic in the oil , trunions were just starting to show wear .
That's not acceptable to me ,so I went with the BTR's TK002 kit that has the bearing steel sleeves pressed on with oil feed holes and the big side washers . This looks like a good set up, we will see.

05-18-2022, 06:35 PM	#43
InFiD3ViL Drives: 2010 CGM 2SS/RS LS3 Swapped A6 Join Date: Sep 2016 Location: Spring Hill, FL Posts: 4,588	Very interested to see how the CHE's are holding up in these builds, since they use a different floating style, non-pressed bushing. I have about 8k miles left on my springs, based on my schedule and will likely be replacing the CHE's with new or going elsewhere depending on what we learn here ,and what I see on tear down. __________________ 2010 CGM Camaro 2SS LS3 Swapped A6 - GPI LS3 SS1 .647/.638, (224/237, 112 +4, 7º overlap) on CamMotion 8620 core, BTR Platinum .660" Dual Spring kit w/titanium retainers, CHE bronze trunnion upgrade, stock heads milled @ .015, Melling HV 10296 oil pump, TSP 1-7/8" long tube headers (W/Catless Off-road Pipes), Corsa Xtreme 3" Catback, GPI Ported/Rod Mod Intake, Stage 2 Ported Throttle Body, Vararam OTR CAI, Mike Norris Gen 2 catch can + GM 1LE clean side separator, 160º thermostat - Megan Racing adjustable coilovers (lowered 1.75"), MRR M017 10/11" wheels-Tuned by Ryan @ GPI

05-21-2022, 09:24 AM	#47
morepowerjoe Drives: 2012 Chevrolet Camaro l99 Join Date: Aug 2020 Location: Austin, TX Posts: 2,156	Those still look pretty promising. I'm glad I went with them this time around. Thanks for the post and pictures. __________________ 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

05-21-2022, 12:42 PM	#48
morepowerjoe Drives: 2012 Chevrolet Camaro l99 Join Date: Aug 2020 Location: Austin, TX Posts: 2,156	Looking more closely at your pictures on my computer I can definitely see the wear on them now. They look like they need to be replaced but what are your thoughts on the wear? Would you replace them now or would you say they could go some more miles? __________________ 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

05-21-2022, 02:15 PM	#49
demonspeed not afraid of the wall Drives: Camaros Join Date: Apr 2010 Location: Pittsburgh Posts: 2,148	I would have absolutely replaced those. They don’t look catastrophic or anything, but the wear is visible. __________________ 2023 1LE 1SS BCD GCF JF5 MN6 SIA SLN UQT 10/13/22: 1100 Past Camaros: 13 1LE\|02 SS\|01 Z28\|00 SS\|91 1LE\|91 Z28\|89 IROC-Z

05-21-2022, 02:20 PM	#50
acammer GPI Sales Consultant Drives: 2011 Camaro 2SS SGM Join Date: Jul 2016 Location: Weedsport, NY Posts: 2,822 View My Garage	Definitely looks worn, just more evenly, no doubt due to the full floating design letting that move around and spread evenly. I think the original idea of trunnion maintenance intervals should track with valve spring intervals. __________________ GPI Max Package 2.0: Brodix BR7 heads/GPI porting, MAX3 cam, ST2116LSR, BSR Max Lift rockers, LS7 LSXR with 103mm TB, Vararam OTR, Mcleod RXT, G-Force/Strange 9" IRS setup with 4.63 gear. 551whp, 11.1@124mph. *Got a question about a GPI product? Feel free to shoot me a message!*

05-21-2022, 09:13 AM	#45
Bob570 Drives: Chevrolet Camaro SS Join Date: May 2022 Location: West Michigan Posts: 10	Sorry for the delay guys, here's some pics

05-21-2022, 09:20 AM	#46
Bob570 Drives: Chevrolet Camaro SS Join Date: May 2022 Location: West Michigan Posts: 10	A little information about those pictures: This is with 20K miles - first 10K miles was with stock LS1 heads and rev limiter set at 6600 - second 10K mikes was with PRC 225 heads, rev limiter set at 7000, intake valve weighs 108 grams The cam is a Texas Speed Torquer V2, 232/234 0.600"/0.600" I used Redline 5w30 oil

05-21-2022, 04:20 PM	#51
Bob570 Drives: Chevrolet Camaro SS Join Date: May 2022 Location: West Michigan Posts: 10	I intend to throw these right back on the new engine and keep beating the tar out of it. They only look slightly more worn than they did at 8k miles (pic below), and to be honest, I'm not sure how much of that is a difference because of the lighting. There is no perceivable play in it when it's assembled. I'll probably check them again at the beginning of each season moving forward, but I expect these will run without any problems for quite some time yet.

05-21-2022, 06:17 PM	#52
demonspeed not afraid of the wall Drives: Camaros Join Date: Apr 2010 Location: Pittsburgh Posts: 2,148	There was no perceivable play when my oblong bushings were installed either. I’m sure you’ll be ok for a bit, but as cheap as they are, I’d replace them with springs. Just basic maintenance really. __________________ 2023 1LE 1SS BCD GCF JF5 MN6 SIA SLN UQT 10/13/22: 1100 Past Camaros: 13 1LE\|02 SS\|01 Z28\|00 SS\|91 1LE\|91 Z28\|89 IROC-Z

05-22-2022, 08:33 AM	#53
1JEWLDSSRS Drives: 2011 SS-RS Join Date: May 2011 Location: FLORIDA Posts: 11,485	Agreed with the above. Looking closely at the pics you can see the wear and scoring on them, as stated just more evenly. As Andrew said, I would just make it a note to replace them when the spring refresh is done, just for safe insurance as they are made of a softer material and do wear. And being that they are so much easier to do than the press ins, yea I would do it for sure. Thanks for the pics sir. __________________ TSP STAGE 3 CAM,231/246 @112 LSA 614/641 LIFT, CIRCLE D 5C-4200-4500 CONVERTER,LOD INTAKE.CORSA EXHAUST. DSS 1 PC DS. PEGASUS SOLID CRADLE MOUNTS. 486RWHP/475RWTQ.LOTS MORE.

05-24-2022, 08:48 AM	#54
Badbubba GrINned & JUICEd Drives: 15STI, 10Expy, 10 2SS/RS M6, 47KB1 Join Date: Nov 2009 Location: Pittsburgh, PA Posts: 1,247	Just put the C.H.E.'s in my rockers. Also, the bronze bushings, trunions and clips can be purchased separately. Bob570, read some of your posts awhile ago in the LS1 forum. __________________ GPI SS3 Cam & stuff,N.O. Plate(dedicated fuel tank,progressive,fuel hose upgrade,remote opener,heater,console switches),LNC2000,CTAP,ARH 1 7/8" LTs/gutted cats/X pipe/mufflers,Jet Hot coated LTs,GPI HPT Tune,CAI, Scoop,Rx Catch Can,Gates heater hose relocation, Remote clutch & auto brake res,Metco loop,Momentum Tunnel Brace,TSW Nurb 18",555 & 05,Pfadt trailing arms & toe rods,Autometer WB,Fesler Pillar Pod,LED strips (int),Lloyds floor & trunk mats,LED DRL/front turn & license plate,DRL harness,VLEDs tail lights,Plasticoat Bowties. Ord: Oct 5, 2009 Rec: Nov 19, 2009 13.17@112.6 stock

06-08-2022, 11:32 PM	#55
InFiD3ViL Drives: 2010 CGM 2SS/RS LS3 Swapped A6 Join Date: Sep 2016 Location: Spring Hill, FL Posts: 4,588	Damn, thanks for the pics Bob. Honestly, those don't look that bad and seems reasonable for 20k miles. Still, I wouldn't have the balls to reinstall them and would replace if I was already in there. Looking forward to when I can afford a nice set of shaft rockers. I only owe $2400 on the car...6 months left! Then the real mods start lol. __________________ 2010 CGM Camaro 2SS LS3 Swapped A6 - GPI LS3 SS1 .647/.638, (224/237, 112 +4, 7º overlap) on CamMotion 8620 core, BTR Platinum .660" Dual Spring kit w/titanium retainers, CHE bronze trunnion upgrade, stock heads milled @ .015, Melling HV 10296 oil pump, TSP 1-7/8" long tube headers (W/Catless Off-road Pipes), Corsa Xtreme 3" Catback, GPI Ported/Rod Mod Intake, Stage 2 Ported Throttle Body, Vararam OTR CAI, Mike Norris Gen 2 catch can + GM 1LE clean side separator, 160º thermostat - Megan Racing adjustable coilovers (lowered 1.75"), MRR M017 10/11" wheels-Tuned by Ryan @ GPI

06-13-2022, 07:57 AM	#56
Pkeen Drives: 2010 Camaro 2ss/rs, 2008 Avalanche Join Date: Jan 2019 Location: Lake Pannasoffkee,Florida Posts: 252	Hi all , I got real curious after seeing all of this ,as I installed the Smith Brothers bushing kit in my 416 stroker. So I pulled them and cked them out ,all were worn even with about .012 wear groove at the bottom with very noticeable wobble, and I have less than 5000 mi on the build. No visible metallic in the oil , trunions were just starting to show wear . That's not acceptable to me ,so I went with the BTR's TK002 kit that has the bearing steel sleeves pressed on with oil feed holes and the big side washers . This looks like a good set up, we will see. __________________ 2010 Rally Yellow 2ss/rs , M6 ,416ci , K1 rods & crank,weisco -3.0cc dome pistons,.040 head gasket, 11.5 compression,1 3/4" LT ,3" pipes w/x-pipe no cats, Cam Motion cam 239/247 113+3 .621"/604" lift , BTR .660 Platinum dual springs w/Titanium retainers, CAI . Stock ls3 heads,intake,injectors & TB. 515rwhp/500rwtq.