so engine is out!!
Thread Starter
Safety Car
Joined: Apr 2004
Posts: 3,532
Likes: 79
From: pueblo co
so engine is out!!
So ended up pulling my motor out of my 2003 Z06 due to sound i was not really all the comfortable with, come to find out it was a broken ringland on lucky number 7. Luckily in my case it did not do any damage to my cylinder wall at all thank god!!
So been calling around to several machine shop's in my area and talking to several friends and have found a shop to do my work
My original plan was to just replace that one piston with one from brother's 2002 LS1 motor that he has and have new ring's installed and reseal the motor and call it a day...Well after talking with people and reading i have come to the term's that is a cheap fix and in the end prob. won't last long ..
So now i am going to go forged internal's to handle the supercharger output....
I just need to know what brand you all recommend and if I can use my stock rod's or if I need to upgrade those as well ??
my block number
this one has me stumped as to what it can mean?? its location is front of the block behind the PS
and i took all my fenders/bumper/hood off just to make sure they did not get damaged in the process of all of this...
as you can see i took the engine out of the top...for me it was easy..total time was about 4 hours and that is removing the drive line as well
So been calling around to several machine shop's in my area and talking to several friends and have found a shop to do my work
My original plan was to just replace that one piston with one from brother's 2002 LS1 motor that he has and have new ring's installed and reseal the motor and call it a day...Well after talking with people and reading i have come to the term's that is a cheap fix and in the end prob. won't last long ..
So now i am going to go forged internal's to handle the supercharger output....
I just need to know what brand you all recommend and if I can use my stock rod's or if I need to upgrade those as well ??
my block number
this one has me stumped as to what it can mean?? its location is front of the block behind the PS
and i took all my fenders/bumper/hood off just to make sure they did not get damaged in the process of all of this...
as you can see i took the engine out of the top...for me it was easy..total time was about 4 hours and that is removing the drive line as well
Thread Starter
Safety Car
Joined: Apr 2004
Posts: 3,532
Likes: 79
From: pueblo co
no very little damage to the head...almost looks like it got sucked out the exhaust valve and right into the high flow cats...passenger side was in almost perfect shape ..how ever the drivers side the high flow car was all bent up...i am reusing them..they will get looked over at the machine shop as well
Thread Starter
Safety Car
Joined: Apr 2004
Posts: 3,532
Likes: 79
From: pueblo co
Acct Suspended APR 2026 by request
Joined: Dec 2010
Posts: 10,367
Likes: 1,272
2020 Corvette of the Year Finalist (performance mods)
C5 of Year Winner (performance mods) 2019
sucks to see it was a ringland but look how clean those pistons are, gotta love meth
... looks like evidence of detonation though all over the piston and it finally had enough... hard to tell but I can't see anything on the piston next to it in your pic
... looks like evidence of detonation though all over the piston and it finally had enough... hard to tell but I can't see anything on the piston next to it in your pic
Thread Starter
Safety Car
Joined: Apr 2004
Posts: 3,532
Likes: 79
From: pueblo co
i can get more pics of the rest of the engine later today when i get home from work.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Thread Starter
Safety Car
Joined: Apr 2004
Posts: 3,532
Likes: 79
From: pueblo co
Boost the car is set up for 9 lbs ...but no steam ports and I am not running meth yet..Pistons were really not that dirty to start with ...it's a common problem with #7 it's important now that I know if anyone is boosted or making more power then stock to make sure you have steam ports on the rear heads..had I those and meth kit I probably would not even had to post any of this
Acct Suspended APR 2026 by request
Joined: Dec 2010
Posts: 10,367
Likes: 1,272
2020 Corvette of the Year Finalist (performance mods)
C5 of Year Winner (performance mods) 2019
I thought you were already running meth, those pistons are damn clean for not using it
Acct Suspended APR 2026 by request
Joined: Dec 2010
Posts: 10,367
Likes: 1,272
2020 Corvette of the Year Finalist (performance mods)
C5 of Year Winner (performance mods) 2019
talk it over with your builder, there are tons of different options depending on your budget... I would definitely do a set of rods and pistons and leave the crank alone and the block would be good to around 900-950, much more than that and the crank will start flexing... the weak link in the rods is the bolts and the cracked capped design is not all that great either... rpm is usually what kills the stock rod bolts so if you rev higher than stock redline or like to rap it out a lot I would definitely take care of the rods while the block is apart... personally I would rather spend a little more now and save the headache later... I would also do a set of arp head studs to help keep the heads from lifting due to the added cylinder pressure
Drifting
Joined: Feb 2010
Posts: 1,720
Likes: 38
From: Colorado
thats the single most luckiest thing ive ever seen in a blown engine, literally. go buy me a lottery ticket 
thanks for the build log. i was debating pulling mine out of the top this winter because my lift isnt at my house anymore. 4 hours doesnt sound too bad.
thanks for the build log. i was debating pulling mine out of the top this winter because my lift isnt at my house anymore. 4 hours doesnt sound too bad.
Last edited by sean.b; Sep 18, 2016 at 04:23 PM.
Thread Starter
Safety Car
Joined: Apr 2004
Posts: 3,532
Likes: 79
From: pueblo co
lol right..and this is my 3rd time pulling the drive line out..once a few year's ago to have my transmission built..second time on a 2002 coupe vette so he could have his transmission rebuilt..and now...so once you know how to do it ..its pretty easy really..
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
If you are going to run a lot of boost, your ring gaps need to be a bit wider than a stock engine.. That could have contributed to your ring land issue..
I recommend adding a steam cross over to the rear of the engine. Its easy to do. Use the 2001-2004 front cross over and just flip it 180 deg. Run a rubber hose to the front and T it in.
That's what I did..
I recommend adding a steam cross over to the rear of the engine. Its easy to do. Use the 2001-2004 front cross over and just flip it 180 deg. Run a rubber hose to the front and T it in.
That's what I did..
Thread Starter
Safety Car
Joined: Apr 2004
Posts: 3,532
Likes: 79
From: pueblo co
If you are going to run a lot of boost, your ring gaps need to be a bit wider than a stock engine.. That could have contributed to your ring land issue..
I recommend adding a steam cross over to the rear of the engine. Its easy to do. Use the 2001-2004 front cross over and just flip it 180 deg. Run a rubber hose to the front and T it in.
That's what I did..
I recommend adding a steam cross over to the rear of the engine. Its easy to do. Use the 2001-2004 front cross over and just flip it 180 deg. Run a rubber hose to the front and T it in.
That's what I did..
Team Owner
Joined: May 2001
Posts: 36,836
Likes: 244
From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
http://www.superchevy.com/how-to/eng...vent-line-kit/
https://www.summitracing.com/parts/tfs-306s0601
http://www.affordable-fuel-injection...th-an-adapter/
Wegner makes these with female 1/8" npt threads
http://paceperformance.com/i-1031131...pt-outlet.html
LOTS of possibilities.
Last edited by LoneStarFRC; Sep 21, 2016 at 08:41 AM.
Drifting
Joined: Feb 2010
Posts: 1,310
Likes: 99
From: Arlington Texas
Like mentioned, talk to your engine builder. Sometimes they have their own preferences and work with certain parts better than others. I would personally do rods while you are in there. They are not that expensive and you will be able to turn up the boost later if you wanted.