Valvetrain upgrade
Thread Starter
Heel & Toe
Joined: May 2020
Posts: 24
Likes: 0
From: Winder, GA
Valvetrain upgrade
Hello. I have a 2004 C5 I been reading about the valvetraine failure. I wanted to upgrade my springs rockers and pushrods.
Do I need to replace lifters to since I will replace the push rods.
is there a full kit I can buy even if it comes witt small cam for street with manual transmission is ok. Any input would greatly be appreciated.
Do I need to replace lifters to since I will replace the push rods.
is there a full kit I can buy even if it comes witt small cam for street with manual transmission is ok. Any input would greatly be appreciated.
Drifting
Joined: May 2007
Posts: 1,544
Likes: 209
From: Huntersville, NC
you have to take off the heads to get to the lifters. That adds a lot of $ to your upgrade. What makes you feel you need to fix stuff? Which C5? What are your plans for the car?
Last edited by k24556; Jun 1, 2020 at 05:40 PM.
Drifting
Joined: May 2007
Posts: 1,544
Likes: 209
From: Huntersville, NC
most of the valve train failures you read about are the yellow beehive springs in the c5z, which has a higher lift cam and more compression than your base C5. Unless you know something about the car’s history, I might suggest you drive it until it tells you or you desire more performance.
Then you can begin to climb the slippery slope of modding your car. Adding HP is $50-60 per HP, so adding 100hp is $5k.
Then you can begin to climb the slippery slope of modding your car. Adding HP is $50-60 per HP, so adding 100hp is $5k.
Thread Starter
Heel & Toe
Joined: May 2020
Posts: 24
Likes: 0
From: Winder, GA
That is music to my ears. You really eased my mind. As far as I know all is stock. So I will not mess with that. Am I safe to hit up to 5500 rpm? The only thing I noticed they did not change out brake and clutch fluid regular. L/R TPMS no good. One will be here tomorrow. Other than that it is truly perfect and I'm in love with it.
Drifting
Joined: May 2007
Posts: 1,544
Likes: 209
From: Huntersville, NC
there is a rev limiter programmed into the pcm. should be ok to hit it once in a while. Clutch fluid may be a challenge for you, but research remote clutch bleeders and put that one down as a good and useful mod. Not an easy one, though
Thread Starter
Heel & Toe
Joined: May 2020
Posts: 24
Likes: 0
From: Winder, GA
I ordered that automatic bleeder already. The 4' one. I ordered the super duty Dot 4 fluid as well. I will complete bleed out both the brake and clutch system. I read it can be a challenge. But I am so excited to do it. Thinking about getting the quick jack now that I'm saving money not doing the valvetraine. I plan on doing all my work that I can.
Drifting
Joined: May 2007
Posts: 1,544
Likes: 209
From: Huntersville, NC
You will have to drop the transaxle at the bellhousing to install a remote bleeder. It can be challenging, so do a lot of research. You will be disconnecting stuff you may never have done before. If you know someone that has done it, that would help.
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Thread Starter
Heel & Toe
Joined: May 2020
Posts: 24
Likes: 0
From: Winder, GA
Oh wow. I did not know that. I got a question. I heard on YouTube video you can remove the intake to install it but it was easier to take off exhsust to do it. By the time I fumble around with jacks then exhaust bolts maybe breaking I can pull the intake off alot faster. But I was not sure if I could install it from there? Why do people swap to ls6 intake? Just incase if I take mine off and need to switch. Thanks for the input as well.
Last edited by C5forever79; Jun 2, 2020 at 04:19 PM.
Melting Slicks
Joined: Dec 2018
Posts: 2,641
Likes: 1,377
From: Orange County, CA
Katech remote bleeder can be installed without removing torque tube. Just have to pull mid pipes and clutch inspection cover, maybe tunnel plate.
https://www.corvetteforum.com/forums...-the-best.html
Thread Starter
Heel & Toe
Joined: May 2020
Posts: 24
Likes: 0
From: Winder, GA
Fixed that for you.
Katech remote bleeder can be installed without removing torque tube. Just have to pull mid pipes and clutch inspection cover, maybe tunnel plate.
https://www.corvetteforum.com/forums...-the-best.html
Katech remote bleeder can be installed without removing torque tube. Just have to pull mid pipes and clutch inspection cover, maybe tunnel plate.
https://www.corvetteforum.com/forums...-the-best.html
that scares me a bit. I got pretty good size hands to. Growing up they called me little man with the big hands. But I do have a 16 year old son with thinner hands 😂
Melting Slicks
Joined: Nov 2017
Posts: 2,306
Likes: 747
most of the valve train failures you read about are the yellow beehive springs in the c5z, which has a higher lift cam and more compression than your base C5. Unless you know something about the car’s history, I might suggest you drive it until it tells you or you desire more performance.
Then you can begin to climb the slippery slope of modding your car. Adding HP is $50-60 per HP, so adding 100hp is $5k.
Then you can begin to climb the slippery slope of modding your car. Adding HP is $50-60 per HP, so adding 100hp is $5k.
Melting Slicks
Joined: Dec 2018
Posts: 2,641
Likes: 1,377
From: Orange County, CA
Dropping the clutch inspection cover (assuming this is the same as the lower bellhousing section you're referring to) is only useful to see what you're doing. It doesn't provide any additional space for hands/fingers.