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New crate engine is now a steam engine....bad problem...

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Old Mar 6, 2006 | 02:24 PM
  #101  
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I'm guessing the builder didn't:

put enough sealer on some of the blind head bolts
properly torque a head bolthead gasket

OR:

the head gasket failed around #6
poor metalurgy on the block or heads resulted in fatique/failure of the block or cyl head.

Was the block bored oversize? If so, how much? .030, .040, .060?
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Old Mar 6, 2006 | 02:31 PM
  #102  
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It's a 355 GM block. GM vortec heads.
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Old Mar 6, 2006 | 03:19 PM
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Just got off the phone with Clarence again and he said yea, it looks like either a blown gasket by #6 or cracked head. I said "ya think". duh....

Emailed him some of the pics and after looking at them he said whole tight, I have to show these to some of the "guys". Will call back....

Next......
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Old Mar 6, 2006 | 03:35 PM
  #104  
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Something that concerns attention....maybe nothing but I wanted y'alls input....Clarence got off the phone quick with me when I pointed this out to him in the pics I sent....

Look at the middle of portion of the gasket and their is a void underneath it. No way this could seal off, but not sure if it matters as this is a welded up port. Now look at the undershot of the intake.



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Old Mar 6, 2006 | 03:42 PM
  #105  
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Originally Posted by MsVetteMan
Something that concerns attention....maybe nothing but I wanted y'alls input....Clarence got off the phone quick with me when I pointed this out to him in the pics I sent....

Look at the middle of portion of the gasket and their is a void underneath it. No way this could seal off, but not sure if it matters as this is a welded up port. Now look at the undershot of the intake.
On the older Chevy cyl head castings, that center port would be the exhaust heat crossover but I thought that with Vortec heads, that passage was eliminated. Definitely looks like the gasket doesn't match the cyl heads/intake. If it were heat crossover, you would definitely want the hole to have gasket around vs. how it appears in the picture. Also, if those ports were either for exhaust OR cooling, that would all have contaminated the crankcase (either with exhaust particulates OR coolant).

Is it possible that they did NOT install vortec cyl heads? The gasket is right for vortec heads. What is the casting number on the cyl heads?

I note the intake manifold and intake gaskets appear to be vortec but the cylinder heads are suspect.

So, perhaps bad/wrong cylinder heads used by builder...

Last edited by TedH; Mar 6, 2006 at 03:46 PM.
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Old Mar 6, 2006 | 03:56 PM
  #106  
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Well old Clarence just called me back again (at least I have there attention) and said on the the next step. He showed the pics to the "guys" and they said the gasket were fine. I pretty sure they are gm vortec heads, but I'll get the cast number to double check. The valve covers bolt thru the center.

Basically I now have to pull the head on the pass. side and report my findings. Asked the ole boy about "my time", and he said the do not warranty labor on self installs. If a shop with certified mechanics had put the motor in, then they would.

Now me and ole Clarence have been getting along so far, but I'm about to get aggravated. Soon he will find out about this thread, but it's to early yet, so I'll bite my tongue a bit longer.
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Old Mar 6, 2006 | 03:57 PM
  #107  
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All of the intake passages are clean except for #6. It's got the milkshake in it. They appear to be Vortecs since they have the 4 mounting bolt holes. I also remember the valve covers are center bolt. Obviously be able to tell the root cause if the heads were to come off. I'll bet they tell you to send it back for replacement though. And just think, you get to install it all over again!!

Brett
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Old Mar 6, 2006 | 03:58 PM
  #108  
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Hey Brett, I rather swap the head than and change a gasket than pull that dayum motor out again!!
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Old Mar 6, 2006 | 03:59 PM
  #109  
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Originally Posted by Brettmc
All of the intake passages are clean except for #6. It's got the milkshake in it. They appear to be Vortecs since they have the 4 mounting bolt holes. I also remember the valve covers are center bolt. Obviously be able to tell the root cause if the heads were to come off. I'll bet they tell you to send it back for replacement though. And just think, you get to install it all over again!!

Brett
You are probably right. My goofy, shadetree mechanic oversight. But, still strange the vortec intake gaskets appear to not fully match the cylinder head port configs/locations where intake meets cyl heads.
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Old Mar 6, 2006 | 04:04 PM
  #110  
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Originally Posted by MsVetteMan
Hey Brett, I rather swap the head than and change a gasket than pull that dayum motor out again!!
But with that water/oil having permeated the engire crankcase, he may have damaged (rusty) bearings. I'd rather have a fresh one than have one that may be ok initially but live a shorter live due to the water intrusion.
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Old Mar 6, 2006 | 04:33 PM
  #111  
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Originally Posted by MsVetteMan
Asked the ole boy about "my time", and he said the do not warranty labor on self installs. If a shop with certified mechanics had put the motor in, then they would.


Nice loophole!!
Call ole Clarence back and ask him if he would like a 355 ci blueprint sbc shoved up his azz. Thanks to him it's already pre-lubed with a mixture of oil and water.
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Old Mar 6, 2006 | 04:53 PM
  #112  
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Originally Posted by MsVetteMan
Well, I just went and bought a new 12 pack, and it's the second one!!
Forget the beer......I'm drinking the hard stuff... make it a double!!!!!!!
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Old Mar 6, 2006 | 04:57 PM
  #113  
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I'd rather have a fresh one than have one that may be ok initially but live a shorter live due to the water intrusion.
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Old Mar 6, 2006 | 05:05 PM
  #114  
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If you ask me I would venture to say its the wrong intake gaskets. When I took the manifold off a 97 LT1, I seam to recall that center port on the head blocked off by the intake but sealed with the gasket.
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Old Mar 6, 2006 | 05:10 PM
  #115  
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Originally Posted by My White 79
If you ask me I would venture to say its the wrong intake gaskets. When I took the manifold off a 97 LT1, I seam to recall that center port on the head blocked off by the intake but sealed with the gasket.
That is what I would've thought also until I spied a photo of a vortec intake gasket on the Summit web site:

http://store.summitracing.com/defaul...3&autoview=sku
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Old Mar 6, 2006 | 05:14 PM
  #116  
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Originally Posted by MsVetteMan
Well old Clarence just called me back again (at least I have there attention) and said on the the next step. He showed the pics to the "guys" and they said the gasket were fine. I pretty sure they are gm vortec heads, but I'll get the cast number to double check. The valve covers bolt thru the center.

Basically I now have to pull the head on the pass. side and report my findings. Asked the ole boy about "my time", and he said the do not warranty labor on self installs. If a shop with certified mechanics had put the motor in, then they would.

Now me and ole Clarence have been getting along so far, but I'm about to get aggravated. Soon he will find out about this thread, but it's to early yet, so I'll bite my tongue a bit longer.
Show them this thread and have him read these replies. If it is legal, post the name and number of this business on this forum (if legal) so we can all can call "ole Clarence" to show this company we mean business.
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Old Mar 6, 2006 | 05:17 PM
  #117  
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Originally Posted by Older Than Dirt
Call ole Clarence back and ask him if he would like a 355 ci blueprint sbc shoved up his azz. Thanks to him it's already pre-lubed with a mixture of oil and water.
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Old Mar 6, 2006 | 05:19 PM
  #118  
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Originally Posted by TedH
That is what I would've thought also until I spied a photo of a vortec intake gasket on the Summit web site:

http://store.summitracing.com/defaul...3&autoview=sku
True but listed also is
http://store.summitracing.com/partde...4&autoview=sku
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Old Mar 6, 2006 | 05:34 PM
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Got the head off??? The suspense is killin me!!
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Old Mar 6, 2006 | 05:43 PM
  #120  
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Originally Posted by My White 79
I agree with you, for the vortec cylinder head used on the engine, that gasket would probably provide the best sealing as it appears to follow the shape and position of the intake ports better AND accomodates both vortec and old-style intake bolt patterns. From one of the cyl head pictures, it appeared the cylinder heads were tapped for both intake bolt patterns.
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