Corvette gurus....need advice
its a yellow 04 z06 with 105,000+ miles on it.
seats have a couple of tears but no more than a inch long.
rest of interior is spotless.
paint and body have that of a car with 105k miles would. (little rock chips but no cracks in fiberglass)
needs 4 new tires
tranny is on the verg of breaking, clutch is on its way out the door.
took the ls6 out and put a ls1 in it....but took the heads and intake off the ls6 and put it on the ls1 (still ls6 right?). heads are from Texas speed stage 2.5
has aftermarket cam and springs but thats it. everything else is stock....even the tune.
the cars body and interior is in great shape......what would you give for it?
thanks guys
The fact it has a different motor will hurt it in the long run from a collectors standpoint. Probably not something you will be worried about. It also raises the question as to why the motor was swapped and how the car was treated. The heads and cam it has on it are making more power than the LS6 did. Which is probably why it needs a tranny rebuild and a clutch.
I can find several examples on CF of lower mileage cars with nothing wrong with them in the in the 20-25k range.
'03 Z06 9k miles $22k
http://forums.corvetteforum.com/c5-c...3-red-z06.html
'03 Z06 58k miles $20k
http://forums.corvetteforum.com/c5-c...miles-20k.html
'04 Z06 18k miles $25k
http://forums.corvetteforum.com/c5-c...ady-ny-nj.html
That's just the first page and looking at Z06's. If you want to mod it, then you can open the door to coupes and fixed roof coupes and go much lower price wise.
Back to the original question, with those miles and in that condition I wouldn't go over $16k for it. You have at least $3k in repairs to do to it. Add on at least a $1k in labor if you aren't going to do it yourself. A realistic starting point is $14-15k.
single digits on miles on new motor. hasn't been in there long.
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The transmission is an MN12 trans and they're not cheap when new. Although, you can get a used one for about 1200-1500, plus you'll need a clutch and the labor. You're looking at a bare-minimum of $2500 to have a used transmission with a new clutch put in. The trans is in the back and it's a PITA to take down and put up. The clutch is in the front, so there's work around the torque tube on both ends.
It has 105K miles which isn't necessarily a bad thing since LSx motors will last a very long time if well taken care of. If you know that this motor has received its maintenance on time and regularly, it's probably good for another 100K miles although I'd do a full tune up on it and replace the timing chain if it hasn't already been.
Millennium Yellow is the most difficult and expensive paint to touch up or repaint. The clear coat is very expensive, the paint itself is expensive, and so on... If you don't mind the chips or you're willing to put the money into it, it's worth it. I have a Millennium Yellow Z06 and I love the color. I get looks and comments all the time. When I park my 03 MY Z next to a black 06+ Z, I get more comments.

And finally, tires. They're not cheap for stock sizes. The front's are an odd size and the backs are wide as hell. I have Toyo T1Rs all at stock sizes and the entire set ran just about $1200 mounted and balanced. There are certainly cheaper tires that are great tires like the Nitto NT05s and you can get an entire set for your car in slightly wider sizes for under $1000.
I'd say that the car is worth 15-17K due to miles and the work that still needs to be done to it:
Lets say 26K base price.
$26,000
-$2,500 (transmission/clutch)
-$1,000 (tires)
-$3,000 (for miles, generally Z06s of that year are below 30K miles)
-$2,000 (paint)
-$500 (Full tune up with timing chain/sprockets and labor)
-$500 (For the fix for the rips in the seats)
That puts the car at $16,500. That sounds about right as well.
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anyone else wanna add any comments or info on the situation?
I'm just letting you know that your tire dealer is bending you over the hood and feeding it to you...
I'm on my 2nd set of Toyo T1Rs and I'm paying $950 installed and spun balanced on my '01z.
YOU ARE WASTING MONEY. Find another tire shop if the other wont deal.
I could almost get Michelin PS2s for $1200...
I'm just letting you know that your tire dealer is bending you over the hood and feeding it to you...
I'm on my 2nd set of Toyo T1Rs and I'm paying $950 installed and spun balanced on my '01z.
YOU ARE WASTING MONEY. Find another tire shop if the other wont deal.
I could almost get Michelin PS2s for $1200...
LS1 blocks are technically stronger than LS6 blocks. If you put an LS6 cam and heads on an LS1 they make the same power. The previous owner did a heads/cam package on an LS1 block. He likely used the LS6 oil pump and intake, so I don't see anything wrong with it. The only thing he wouldn't have is that extra oiling window on the LS6, but it's not like that's any real advantage.
My car is probably in the 450-460rwhp range with the present combo and my transmission is showing signs of needing some attention. It's silly to find a stock unit for about the same cost to ship the existing transmission to a place like RPM and have it built to sustain the current power level and more.
I do agree with your comments on the LS1 motor. As long as it's sound and the important pieces are changed over the only thing it will effect is its originality for a collector.
If the money is the same to have RPM build the trans, then I'd say that's the best solution, but finding a use MN12 for cheap isn't hard. (http://cgi.ebay.com/ebaymotors/CORVE...#ht_657wt_1166)
Just my thoughts... If it were my car, I'd have it built. I'd do a hardened output shaft too.


tires 1,k parts and labor on the trans and the back end 3,k.
