[Z06] 02 Z06 engine question...
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02 Z06 engine question...
I bought an 02 Z06 awhile back with a blown up engine in it. Long story short, the previous owner pulled alot of the stuff off of the engine. I went ahead and bought a drop out engine from an 01 z06. I know I need to swap the cam in the 01 engine, but what else from the 02 engine do I need to swap into it to make it a factory 02 z06 engine? The car had a tsunami cam in it and I don't even want to mess with that, I'd rather just get the stock tuning flashed into the computer and put it stock, minus headers and rear cats delete. Thanks in advance guys.
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From: oregon
I bought an 02 Z06 awhile back with a blown up engine in it. Long story short, the previous owner pulled alot of the stuff off of the engine. I went ahead and bought a drop out engine from an 01 z06. I know I need to swap the cam in the 01 engine, but what else from the 02 engine do I need to swap into it to make it a factory 02 z06 engine? The car had a tsunami cam in it and I don't even want to mess with that, I'd rather just get the stock tuning flashed into the computer and put it stock, minus headers and rear cats delete. Thanks in advance guys.
12499224 set of 16 GM valve springs
12482063 set of 8 intake valve seals
12482062 set of 8 exhaust valve seals
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From: oregon
you could but then you would need new bolts and new headgaskets. much easier to just change the springs. what springs are on your 02 heads? if they are factory you shouldn't use them. they are the springs that broke so often
Le Mans Master
Joined: Apr 2001
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From: Was New Orleans but swam to Baton Rouge LA
Cruise-In IX Veteran
Yes, and you should. The 2002 and later Z06 has the sodium filled exhaust valves. They 2001 Z06 heads did not.
Now you need to watch the 2001 engine because some had oil burning issues and the rings were changed for the 2002 engines.
Now you need to watch the 2001 engine because some had oil burning issues and the rings were changed for the 2002 engines.
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The heads have upgraded springs, the guy before me was running a tsunami cam but missed a shift at high rpm and snapped a rod. It didn't really bother me swapping head gaskets, the engine I got from the 01 z06 had 98k on it so I kinda wanted to pop the heads off anyways and take a look, make sure cylinders and rings look good, etc. any other good preventative maintenace I should be looking into?
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From: oregon
do a cylinder leakdown before you pop the heads. that will clue you in on any potential issues.
if your heads are in better shape i wouldn't hurt to install them. just remember to use new bolts
also would let you brake clean any crap out of the ringlands, well, at least as much as you can get at. remember to just use a plastic brush, stainless can scratch the iron sleeves, brass if you're careful
if your heads are in better shape i wouldn't hurt to install them. just remember to use new bolts
also would let you brake clean any crap out of the ringlands, well, at least as much as you can get at. remember to just use a plastic brush, stainless can scratch the iron sleeves, brass if you're careful
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Race Director
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From: oregon
personal call. i would inspect everything for wear. if you run the engine hard frequently a stronger timing chain may be smart, think there is an OEM upgrade. LS2? ls7? one of those engines uses a better chain and it fits from what i remember
Melting Slicks
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From: Atlanta GA
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Engine will be here tomorrow, I went ahead and ordered the new factory 02 z06 cam, new head bolts and all the associated gaskets. I may need a few nuts and bolts since the cars been apart for awhile but I also ordered a new ECM with the factory tune in it... Granted I will jhave long tubes x pipe and no rear o2's etc, so it'll throw a code or 2 but It'll be fine for now until I can get the other ECM sent off for the tune for those. I'm torn between putting in my exedy twin disc clutch that I got when I was going to make this car a supercharged car or just selling that and putting a more factory one in.
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St. Jude Donor '08-'09
LS2 chain
Race Director
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From: oregon
Engine will be here tomorrow, I went ahead and ordered the new factory 02 z06 cam, new head bolts and all the associated gaskets. I may need a few nuts and bolts since the cars been apart for awhile but I also ordered a new ECM with the factory tune in it... Granted I will jhave long tubes x pipe and no rear o2's etc, so it'll throw a code or 2 but It'll be fine for now until I can get the other ECM sent off for the tune for those. I'm torn between putting in my exedy twin disc clutch that I got when I was going to make this car a supercharged car or just selling that and putting a more factory one in.
for a more factory feel
https://sdparts.com/details/scoggin-...enter/sdls7ack
would be ideal for a bolt on ls6
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parts here... Its a very very clean engine, pulling the heads will tell the tale though. I'm getting my heads cleaned up along with an underdrive pulley and the headers at a buddies shop. Got my hptuners up and going with a tune that should get me in the ball park. prepping my other projects for paint as we speak and then it's off to the races in the vette.
Burning Brakes
Joined: Dec 2003
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From: Loveland CO
If the motor is a 01 and out of the car and the 02 heads are going on it.. I would re-ring the motor and put in new lower end bearings. not much more work and you will have a good bottom end, with no oil consumption. If the heads are good I would use the entire top end of the 02 motor (valve covers, valley cover, PCV tubes, ect...). I would run a stock 2004 LS6 valve spring (aftermarket heavy springs will wear the valve train prematurely and replace the timing set with a LS2 as mentioned above and while its out new gaskets all around. check the waterpump as well.. good time to replace it with new and T-stat.
Keep in mind you can remove old parts and sell them.. Z06 Heads (243 Castings are desirable), as is the LS6 intake/TB and the aftermarket cam/pushrods/springs for someone wanting to upgrade. recoup money for parts/labor
S
Keep in mind you can remove old parts and sell them.. Z06 Heads (243 Castings are desirable), as is the LS6 intake/TB and the aftermarket cam/pushrods/springs for someone wanting to upgrade. recoup money for parts/labor
S
Last edited by RedZMonte; Aug 18, 2014 at 08:14 PM.
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From: oregon
If the motor is a 01 and out of the car and the 02 heads are going on it.. I would re-ring the motor and put in new lower end bearings. not much more work and you will have a good bottom end, with no oil consumption. If the heads are good I would use the entire top end of the 02 motor (valve covers, valley cover, PCV tubes, ect...). I would run a stock 2004 LS6 valve spring (aftermarket heavy springs will wear the valve train prematurely and replace the timing set with a LS2 as mentioned above and while its out new gaskets all around. check the waterpump as well.. good time to replace it with new and T-stat.
Keep in mind you can remove old parts and sell them.. Z06 Heads (243 Castings are desirable), as is the LS6 intake/TB and the aftermarket cam/pushrods/springs for someone wanting to upgrade. recoup money for parts/labor
S
Keep in mind you can remove old parts and sell them.. Z06 Heads (243 Castings are desirable), as is the LS6 intake/TB and the aftermarket cam/pushrods/springs for someone wanting to upgrade. recoup money for parts/labor
S
if you rehone you could change all 3 but the top compression rings were never much of a problem even in 01
with the engine apart it wouldn't be that hard to switch to the scraper rings, BUT, the change over was in the late 01 production run. so, there's a chance they are already in there
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thanks guys... Yeah, I'm not going to go crazy with the car, and I already have a buyer for the old 243 heads. No old topend from the 02 z06, I bought it with the engine blown up and the previous owner had removed the topend. More to follow, I just need to finish a few other projects this week and the z06 will get it's day on the lift.
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Still getting stuff together... A lot of stuff to do in a little bit of time. Trying to get the turbo off of the typhoon but the bolts are being a pain in the butt... Working on some BBQ today and little car hood/vette stuff. Got the engine for the vette put back together after cam/oil pump/timing chain/head swap... Turned out good, but I've got more in store for it... Pics later... Good times, I forgot how badass the lift is when working on the vette.
