C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
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'69 427 Bent Push Rod

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Old Mar 24, 2019 | 05:01 PM
  #301  
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The camshaft is a CWC 1548 Casting
Also has a C8 and D8 cast in it.
Also a 13 and a 15 cast into it.
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Old Mar 24, 2019 | 05:32 PM
  #302  
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Yes. Fuel pump must come out. Spring loaded pushes drive rod into cam. Will jam on every lobe and the bearings. Have you pulled cranks and done bearings, etc?
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Old Mar 24, 2019 | 06:12 PM
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Originally Posted by derekderek
Yes. Fuel pump must come out. Spring loaded pushes drive rod into cam. Will jam on every lobe and the bearings. Have you pulled cranks and done bearings, etc?
No, I'm pulling the engine
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Old Mar 24, 2019 | 07:18 PM
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Have you done bearing and crank work, or are you just taking this motor to somebody? T1028. Tonowanda plant. Oct 28th. The january 06 063 heads are 3 months too young for your build date. Doesnt mean they are not worth the money. But can't be used in a "numbers matching" scenario.
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Old Mar 24, 2019 | 07:21 PM
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Originally Posted by derekderek
Have you done bearing and crank work, or are you just taking this motor to somebody? T1028. Tonowanda plant. Oct 28th. The january 06 063 heads are 3 months too young for your build date. Doesnt mean they are not worth the money. But can't be used in a "numbers matching" scenario.
Do you have any sources to source heads
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Old Mar 24, 2019 | 09:28 PM
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Originally Posted by derekderek
Have you done bearing and crank work, or are you just taking this motor to somebody? T1028. Tonowanda plant. Oct 28th. The january 06 063 heads are 3 months too young for your build date. Doesnt mean they are not worth the money. But can't be used in a "numbers matching" scenario.
I have taken a crank to get polished and I have installed bearings, but that was in 1979 lol

what date code range can I consider for the heads?

Last edited by Z06CE; Mar 24, 2019 at 09:32 PM.
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Old Mar 25, 2019 | 12:26 AM
  #307  
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Usually 2 months before to 1 week before engine build date. I think ncrs accepts up to 6 months before build date. Heads staying on til engine is out?
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Old Mar 25, 2019 | 07:57 AM
  #308  
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Originally Posted by derekderek
Usually 2 months before to 1 week before engine build date. I think ncrs accepts up to 6 months before build date. Heads staying on til engine is out?
Yes, it will be easier without me hyper extending my back to get the heads off. I also want to limit leaning over the fenders. I do have moving blankets over the fenders.
How does the clutch pivot arm that connects to the block and frame removed?
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Old Mar 25, 2019 | 08:42 AM
  #309  
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I think the bracket on the frame gets unbolted. Pulling mtr-trans together, or seperately? There are plusses and minusses to each way.
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Old Mar 25, 2019 | 08:46 AM
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Originally Posted by derekderek
I think the bracket on the frame gets unbolted. Pulling mtr-trans together, or seperately? There are plusses and minusses to each way.
Together
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Old Mar 25, 2019 | 07:37 PM
  #311  
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Originally Posted by Z06CE
Yes, it will be easier without me hyper extending my back to get the heads off. I also want to limit leaning over the fenders. I do have moving blankets over the fenders.
How does the clutch pivot arm that connects to the block and frame removed?
There is a 3/8 stud in the end of the cross shaft (z-bar). 9/16 wrench on the outboard side-- loosen that nut and the stud will come up out of the slot in the frame bracket. The 3/8 stud is really a pivot ball in the end of the z-bar, but you can't really tell until you get it out. When that is out, the z-bar just pulls off the block side pivot.
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Old Mar 26, 2019 | 03:07 PM
  #312  
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Originally Posted by Z06CE
What do you spend 10gs on?
If you mind me asking
My 68 had a CE replacement block so I went non-period correct 460, I basically kept the 4-bolt block and upgraded everything else, forged lower end, h-beam rods, AFR 256 heads, studs top and bottom, custom Hyd roller cam, Alum rad, elec fans/controller etc. I kept it all on a spreadsheet so it is pretty close to all costs included (even little stuff). I had a HP goal of better than 550hp at crank with the Tri-power (made 560ish with Tri-power and just shy of 600 with a dart high rise sp/holley 850 combo un-tuned as we ran out of time on dyno). I had the Dyno/Mach. shop button up the bottom end, I did the rest.

I think you'll be really happy you opted to pull the motor. The chevelle forum is also a great resource for performance BB build info (this forum is great too). I'll be following to see what you end up doing.
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Old Mar 26, 2019 | 10:05 PM
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Originally Posted by suprspooky
My 68 had a CE replacement block so I went non-period correct 460, I basically kept the 4-bolt block and upgraded everything else, forged lower end, h-beam rods, AFR 256 heads, studs top and bottom, custom Hyd roller cam, Alum rad, elec fans/controller etc. I kept it all on a spreadsheet so it is pretty close to all costs included (even little stuff). I had a HP goal of better than 550hp at crank with the Tri-power (made 560ish with Tri-power and just shy of 600 with a dart high rise sp/holley 850 combo un-tuned as we ran out of time on dyno). I had the Dyno/Mach. shop button up the bottom end, I did the rest.

I think you'll be really happy you opted to pull the motor. The chevelle forum is also a great resource for performance BB build info (this forum is great too). I'll be following to see what you end up doing.
I just had to get in the zone and resolve to myself that in part its the Journey.
I took the oil pan off today, looked up into to view the cylinders I see some scuffing at the bottom of the cylinder walls. Metal must have been circulating through the motor.
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Old Mar 29, 2019 | 08:33 PM
  #314  
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Metal in your pan, in your oil filter ?

Last edited by Little Mouse; Mar 29, 2019 at 08:36 PM.
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Old Mar 29, 2019 | 09:22 PM
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Originally Posted by Little Mouse
Metal in your pan, in your oil filter ?
Yes tiny slivers here and there in oil pan, Before I knew I had issues I changed oil and filter just after I purchased the car.
Hot a good look at the cylinder walls, some stuffing on at least 3 cylinder walls. Not deep but they can be seen.
Engine is ready to come out. Just been real busy with work.
Does the car need to be raised to get the engine and 4 speed out as one unit?
Any tips?
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Old Mar 29, 2019 | 09:30 PM
  #316  
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Originally Posted by Z06CE
Yes tiny slivers here and there in oil pan, Before I knew I had issues I changed oil and filter just after I purchased the car.
Hot a good look at the cylinder walls, some stuffing on at least 3 cylinder walls. Not deep but they can be seen.
Engine is ready to come out. Just been real busy with work.
Does the car need to be raised to get the engine and 4 speed out as one unit?
Any tips?
i plan to fly out of san diego by middle next week back to home base north of dallas. I could fly to where your at help you fix it if you have the money for parts and any machine shop cost needed. If its down to the short block will be easy to pull both it and trans out.

Last edited by Little Mouse; Mar 29, 2019 at 09:38 PM.
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Old Mar 29, 2019 | 09:40 PM
  #317  
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Would you say any scuffing you feel your looking at below where the piston rings come all the way down to bottom of the cylinder.
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Old Mar 29, 2019 | 09:43 PM
  #318  
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Originally Posted by Little Mouse
i plan to fly out of san diego by middle next week back to home base north of dallas. I could fly to where your at help you fix it if you have the money for parts and any machine shop cost needed. If its down to the short block will be easy to pull both it and trans out.
I'll PM you ok?
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Old Mar 29, 2019 | 09:46 PM
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Originally Posted by Little Mouse
Would you say any scuffing you feel your looking at below where the piston rings come all the way down to bottom of the cylinder.
Yes
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Old Mar 29, 2019 | 09:59 PM
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I've read that it's a pain in the neck to remove the shifter but maybe you can pull the trans out with the motor (just removing shift linkage) without to much pain. I pulled my L71 minus the tri-power in about six hours (tranny stayed in) working under a shorty two post lift (sat on a rolling stool mostly) I drove the Car to a buddies house after work on a Friday, we were done before 10PM.
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