[Z06] Heads guides wore out again...
03-12-2017, 11:12 PM
#141
Melting Slicks
Thread Starter
Here's the break down running Mobil0w40 with zinc additive then changing it this week to oil reher Morrison uses for there motors then going to run that oil 3 oil change what you think....
03-12-2017, 11:14 PM
#142
Melting Slicks
Thread Starter
Here's the break down running Mobil0w40 with zinc additive then changing it this week to oil reher Morrison uses for there motors then going to run that oil 3 oil change what you think....
Can you put my old analysis with the 0w40 I posted last time next to yours....thats what I ran before I tore motor apart....
03-13-2017, 04:11 PM
#143
Team Owner
Here's the break down running Mobil0w40 with zinc additive then changing it this week to oil reher Morrison uses for there motors then going to run that oil 3 oil change what you think....
Can you put my old analysis with the 0w40 I posted last time next to yours....thats what I ran before I tore motor apart....
Can you put my old analysis with the 0w40 I posted last time next to yours....thats what I ran before I tore motor apart....
DH
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RamAir972003 (03-14-2017)
03-14-2017, 01:23 PM
#147
Team Owner
03-14-2017, 06:17 PM
#148
Melting Slicks
i have pulled mine to inspect and correct me if im wrong, but there is NEVER any play whatsoever in the valves when testing the guides.
any momevent side to side (left -right)=BAD
no movement side to side=GOOD (for now) LOL
any momevent side to side (left -right)=BAD
no movement side to side=GOOD (for now) LOL
03-14-2017, 09:34 PM
#149
Le Mans Master
03-16-2017, 01:40 PM
#150
Instructor
Guides wear from revs and hard driving. Mine were BAD after 18k miles from pre owners who didn't know better, so i just had them replaced.
Like Dan says, not side-to-side, but up and down since the rocker is actually not 100% pushing DOWN on the valve. A friend just put a mechanical cam + lifters in his LS7, and its amazing how extremely bad the stock rockers work when you throw a big lift cam. Let me know if you want pictures.
GM was really stressing it, using whats basically LS3 rockers on a cam that lifts a bit more.
Like Dan says, not side-to-side, but up and down since the rocker is actually not 100% pushing DOWN on the valve. A friend just put a mechanical cam + lifters in his LS7, and its amazing how extremely bad the stock rockers work when you throw a big lift cam. Let me know if you want pictures.
GM was really stressing it, using whats basically LS3 rockers on a cam that lifts a bit more.
Last edited by pierrel; 03-16-2017 at 01:41 PM.
03-17-2017, 03:43 PM
#151
Melting Slicks
Thread Starter
Msd intake done.......
Guides wear from revs and hard driving. Mine were BAD after 18k miles from pre owners who didn't know better, so i just had them replaced.
Like Dan says, not side-to-side, but up and down since the rocker is actually not 100% pushing DOWN on the valve. A friend just put a mechanical cam + lifters in his LS7, and its amazing how extremely bad the stock rockers work when you throw a big lift cam. Let me know if you want pictures.
GM was really stressing it, using whats basically LS3 rockers on a cam that lifts a bit more.
Like Dan says, not side-to-side, but up and down since the rocker is actually not 100% pushing DOWN on the valve. A friend just put a mechanical cam + lifters in his LS7, and its amazing how extremely bad the stock rockers work when you throw a big lift cam. Let me know if you want pictures.
GM was really stressing it, using whats basically LS3 rockers on a cam that lifts a bit more.
03-18-2017, 12:43 AM
#153
Burning Brakes
What lifters did you go with? I am basically doing the same to my motor as you right now. Checking everything over, 4.130" pistons, rod bolts, etc. My LS7 lifters have some scuffs on the wheels so I will replace them.
03-18-2017, 03:44 AM
#154
Melting Slicks
Thread Starter
Make sure you get new lifters I did.....kept crank cryo froze it its good for 900hp so I might do forced induction or a little something something's.....haaaa
Last edited by RamAir972003; 03-24-2017 at 01:52 AM.
05-21-2017, 07:13 PM
#156
Melting Slicks
Thread Starter
Car is tuned and done for now the headers are def choking up the car up top looses power at 6600 13/4 are no good when going this setup.....final numbers where 525 torque 560hp the motor is much torquier, 510 pounds of torque at 3900 rpm ill post numbers soon car spins in 3rd gear at 50mph lol punch very pleased with this cam that I went with. Basically its a torquer and gt-20....
Previous torque was 488 and 558 hp
Now what you guys think 2inch headers or 17/8
Last edited by RamAir972003; 05-21-2017 at 07:19 PM.
05-22-2017, 02:36 PM
#159
Team Owner
