replacing the junk LS7
11-12-2018, 02:09 PM
#21
Team Owner
You could always explore that option as well if you plan to sell it anyways. Unlike him, you can also sell an intact motor that just needs a refresh, as well as parting out your mods. Take it back to bone stock.
11-12-2018, 02:21 PM
#23
Team Owner
11-12-2018, 03:15 PM
#24
Le Mans Master
11-12-2018, 03:24 PM
#25
If your intent is to have a blower car, put it back to stock, sell it, and snag a ZR1 or GS and add the blower. 
Note that the LS9 also has titanium rods, so it's possible that as those engines get some miles on them the rod issue starts appearing there as well.
For me, I'm an N/A guy, so spending the money on a new rotating assembly and sleeving the LS7 block for a bigger bore was the route I took.
Note that the LS9 also has titanium rods, so it's possible that as those engines get some miles on them the rod issue starts appearing there as well.
For me, I'm an N/A guy, so spending the money on a new rotating assembly and sleeving the LS7 block for a bigger bore was the route I took.
11-13-2018, 08:27 AM
#28
Racer
Stock zr1’s are definitely not faster than a H/C z06.
Last edited by 68birdls1; 11-13-2018 at 08:27 AM.
11-13-2018, 10:28 AM
#29
fact: most h/c ls7’s run mid to high 10’s in the 1/4 mile @ 132-138
https://www.corvetteforum.com/forums/c6-corvette-zr1-and-z06/2964967-10-33-bone-stock-zr1-on-drag-radials-new-record.html
Sorry you're wrong on that. I believe someone ended up going 10.20's stock however this is good enough to prove the point
Last edited by zaquhree; 11-13-2018 at 10:29 AM.
11-13-2018, 10:39 AM
#30
Le Mans Master
^^^ This shouldn't start an argument, the ZR1 engine has much greater potential for higher hp - being boosted - that we all know and should agree on, all while remaining much more streetable
11-13-2018, 10:42 AM
#31
Exactly. Idk why people get offended so easily. Facts are facts. I have gotten almost 0 constructive advice on this post. Mainly salty Z06 owners lol
11-13-2018, 10:46 AM
#32
Le Mans Master
I had a Z06, loved it, def'ly not knocking it BUT call it for what it is - great engine overall (sans head issues) but not good for boost as we all know - and you reach a point where streetability suffers after a certain level.
11-13-2018, 10:51 AM
#33
They're great cars with an amazing motor. However this motor is the kind that needs to be checked every other season for rod wear, oil contaminates and valve guide issues. There's a reason this is seemingly is the per capita most failed LS motor...too much technology for average Joe to live with
11-13-2018, 11:02 AM
#34
Burning Brakes
Build a better N/A motor is what i personally would do. I plan to go 500ci if mine ever has issues. Most of the posts on the FB page would seem concerning until you realize that most new Z06 owners are young, came from less dependent cars, and beat on the engine without regard. I haven't seem many veteran owners that really take care of their stuff (not just oil changes) having a ton of issues besides the valves, and that's a 20k miles problem it seems now, so it's fine.
11-13-2018, 11:11 AM
#35
Nice comparison by the way with the Z06 vs ZR1. Take a look at the fast list you may learn something.
11-13-2018, 11:11 AM
#36
As this non-salty Z06 owner said above, if your desire is to have a forced induction car making big power, put the Z06 back to stock and sell it. Then go buy a ZR1 or a GS (with the intent on boosting it).
You'll be ahead money wise, with the possibility of retaining some sense of driving civility.
Now, comparing performance envelopes of a modded N/A car versus a stock F/I car are somewhat silly (to me), but it doesn't take a rocket scientist to compare power to weight ratios
11-13-2018, 10:31 PM
#37
well just by your title “junk” Ls7 I can already tell you don’t know what you are talking about. Ls7 will probably go down as the best Production engine Gm ever produced. Yes the heads are a issue but Ls9 has the same issue. You can fix heads. Stock Zr1’s are not faster than a well put together H/C Zo6. I ran door to door with a 750+rw Zr1 with my h/c z making 615rw. That raw Na power is hard to beat. I would keep your’s..sleeve it, forged bottom end, pistons and let it eat.
11-13-2018, 10:42 PM
#38
well just by your title “junk” Ls7 I can already tell you don’t know what you are talking about. Ls7 will probably go down as the best Production engine Gm ever produced. Yes the heads are a issue but Ls9 has the same issue. You can fix heads. Stock Zr1’s are not faster than a well put together H/C Zo6. I ran door to door with a 750+rw Zr1 with my h/c z making 615rw. That raw Na power is hard to beat. I would keep your’s..sleeve it, forged bottom end, pistons and let it eat.
11-14-2018, 07:31 AM
#39
Le Mans Master
well just by your title “junk” Ls7 I can already tell you don’t know what you are talking about. Ls7 will probably go down as the best Production engine Gm ever produced. Yes the heads are a issue but Ls9 has the same issue. You can fix heads. Stock Zr1’s are not faster than a well put together H/C Zo6. I ran door to door with a 750+rw Zr1 with my h/c z making 615rw. That raw Na power is hard to beat. I would keep your’s..sleeve it, forged bottom end, pistons and let it eat.