Top end rebuilt ls1
Thread Starter
Safety Car
Joined: Mar 2015
Posts: 3,638
Likes: 245
Top end rebuilt ls1
Its time! I replace the plugs last thursday due to 3 of them being caked will oil. It was not we but enough for the plug to not fire, 2 days later the same 3 plugs had oil contact but not as bad.
Im assuming the seals are foul and who knows what else until i take it apart.
The question here. Is where can i source a good set of valve seals and springs but with stock specs? No point to dump money in a cam and head job since i will swap to ls3.
Also any input of parts to be replaced while its open.
Im assuming the seals are foul and who knows what else until i take it apart.
The question here. Is where can i source a good set of valve seals and springs but with stock specs? No point to dump money in a cam and head job since i will swap to ls3.
Also any input of parts to be replaced while its open.
Safety Car
Joined: Mar 2017
Posts: 3,769
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From: Orlando Florida
You're assuming valve seals without compression or leak down numbers? Wouldn't it behoove you to know the compression is good prior to putting a lot of work into changing over the top end? I would hate to go through all that only to find the same plugs continued to oil foul.
Thread Starter
Safety Car
Joined: Mar 2015
Posts: 3,638
Likes: 245
You're assuming valve seals without compression or leak down numbers? Wouldn't it behoove you to know the compression is good prior to putting a lot of work into changing over the top end? I would hate to go through all that only to find the same plugs continued to oil foul.
Safety Car
Joined: Mar 2017
Posts: 3,769
Likes: 940
From: Orlando Florida
Thread Starter
Safety Car
Joined: Mar 2015
Posts: 3,638
Likes: 245
I know my heads have to be wasted. Im also sure the rings might be going out now, i cam just feel the engine getting tired.
Thread Starter
Safety Car
Joined: Mar 2015
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The real funny thing is i started to have problems after i put the mufflers back on and not one of the o2 is bad.
Drifting
Joined: Sep 2009
Posts: 1,862
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From: Prescott, Arizona
A compression test is in order. I am wondering if the symptoms might be caused by a failed/ plugged catalytic converter.
When you say mufflers, do you mean the mufflers at the very rear of the car? I assume you are not confusing those with rear or front catalytic converters-
When you say mufflers, do you mean the mufflers at the very rear of the car? I assume you are not confusing those with rear or front catalytic converters-
Thread Starter
Safety Car
Joined: Mar 2015
Posts: 3,638
Likes: 245
A compression test is in order. I am wondering if the symptoms might be caused by a failed/ plugged catalytic converter.
When you say mufflers, do you mean the mufflers at the very rear of the car? I assume you are not confusing those with rear or front catalytic converters-
When you say mufflers, do you mean the mufflers at the very rear of the car? I assume you are not confusing those with rear or front catalytic converters-
Now my c5 is and has been on double duty for many years and never a garage queen. I've pushed it to its limits many times and yes that means redline and even over rev at time mainly by accident.
It sure does feel worn and i know the top end may not solve much but it will just to get me by for the ls3 build. I can tune the o2 sensor out with my hptuner but have smog coming in a few months so that is not an option.
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Thread Starter
Safety Car
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