C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Update on Blown head gaskets

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Old Dec 11, 2007 | 08:05 PM
  #21  
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Are you datalogging the car? I wonder if it getting spark knock.
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Old Dec 11, 2007 | 08:47 PM
  #22  
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I had not. I just set the base timing to 6* btdc. However you bet I will on my 3rd go-around.
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Old Dec 11, 2007 | 08:54 PM
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My old schooling was to re-torque steel gaskets and it was not needed on the composites because they were more forgiving. It has been awhile since I installed a set of heads but I am sure I will follow the gasket manufactures recommendations when the time comes. Later! Frank
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Old Dec 11, 2007 | 09:17 PM
  #24  
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Originally Posted by chucks88
I had not. I just set the base timing to 6* btdc. However you bet I will on my 3rd go-around.
Datamaster is your friend. Tunerpro RT is free. Not bad either.
I remember your previous thread about the gasket problem but not details. Who burned your chip ?
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Old Dec 11, 2007 | 10:33 PM
  #25  
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Jesse

All I have is the auto x-ray....will that suffice....I'm sure it's better than nothing
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Old Dec 11, 2007 | 10:56 PM
  #26  
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Be safe. Get a low buck laptop and Tunerpro TR or Datamaster. Tunerpro is free and you can use Datamaster 20 times free. After that its $120 for unlimited use. It has paid for itself many times for me. Its also a very intresting tool to use.
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Old Dec 12, 2007 | 10:44 AM
  #27  
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Hey Chuck, I didn't mean to insinuate you didn't do it in stages or follow the pattern....sorry if it sounded that way, what I was trying to emphasize was at least in my experience and being of "old school" I still believe in retorquing after bringing the engine up to temp. I've only had one experience where I had to do it again (head gasket) and that was on an old Jag. (aluminum head also) I thought I had carefully checked the head (with a straight edge) so I didn't think it needed resurfacing...boy was I wrong.
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Old Dec 12, 2007 | 02:37 PM
  #28  
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Originally Posted by chucks88
At any rate 2 of us checked the heads and the deck surface with a straight edge.....and as far as we can tell....she looks good.
as long as it's .002" or less front-to-back and side-to-side, you're good to go.

as for fel-pro, i hope that if they're at fault, then they admit it, man up to the plate, pay for a new set of gaskets and at least pay some portion of the labor costs.

in this day & age, that sort of honesty & forthrightness is few and far between.

and don't ask me how i know.
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Old Dec 12, 2007 | 05:00 PM
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Had a very similar experience with the FelPro 1010 head gaskets. Turns out my tourque wrench was 10ft lbs low. However I switched them for the thinner Victor Reinz? 5746 gaskets and never had any more trouble.
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Old Dec 12, 2007 | 08:09 PM
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Originally Posted by rick lambert
Hey Chuck, I didn't mean to insinuate you didn't do it in stages or follow the pattern....sorry if it sounded that way, what I was trying to emphasize was at least in my experience and being of "old school" I still believe in retorquing after bringing the engine up to temp. I've only had one experience where I had to do it again (head gasket) and that was on an old Jag. (aluminum head also) I thought I had carefully checked the head (with a straight edge) so I didn't think it needed resurfacing...boy was I wrong.
Understood.....it's a good read for "old school" practices that may just help somebody out in the future.

I am going to have my torque wrench re-calibrated before I attempt this again. I had mine and a buddies of mine which torque values seem to be almost dead on. The could both however be f'ed up.
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Old Dec 12, 2007 | 09:24 PM
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Originally Posted by Hot Rod 90
as long as it's .002" or less front-to-back and side-to-side, you're good to go.

as for fel-pro, i hope that if they're at fault, then they admit it, man up to the plate, pay for a new set of gaskets and at least pay some portion of the labor costs.

in this day & age, that sort of honesty & forthrightness is few and far between.

and don't ask me how i know.
I have had a few dealings with felpro over the years. I can say that they are an honest bunch. I strongly suspect that they will give a straightforward, factual evaluation of the failed gaskets. I have seen them pay for gasket failures if the problem was related to them.
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Old Dec 19, 2007 | 06:46 PM
  #32  
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What did you find out?

The 1010 is for a 4.155 bore, correct?
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Old Dec 19, 2007 | 09:11 PM
  #33  
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Nothing yet....The machine shop who built my short block and sent the gaskets off with the Felprpo rep. said "don't expect a quick response" .

They would have had them a month come 12/26. I'll give him a call after the first of the year.

I cant remember the bore size particulars except that they can certainly handle a .030 boring
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Old Dec 20, 2007 | 12:41 AM
  #34  
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what are you torqueing them to? If you use ARP bolts, I would use 70 ft. lbs.
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Old Dec 20, 2007 | 03:03 PM
  #35  
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EDIT See below

Last edited by LD85; Dec 20, 2007 at 03:34 PM.
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Old Dec 20, 2007 | 03:06 PM
  #36  
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Originally Posted by LD85
The paper work in the FPP-1010 package says

"NOT TO BE USED ON ENGINES OVER 3000-RPM"

I just bought a set and sent them back when I saw that!
say what
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Old Dec 20, 2007 | 03:34 PM
  #37  
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Originally Posted by comp
say what
Ooops, I looked at it again and it says

FOR 400 ENGINES THAT WILL BE RUN UNDER 3000 RPMS,

You must drill steam holes.


Anyone using a Felpro 1010 on a 406?

Last edited by LD85; Dec 20, 2007 at 03:42 PM. Reason: More info
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Old Dec 20, 2007 | 05:40 PM
  #38  
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If I were going with a high compression engine like that I would build it overkill with the gaskets. The 1010's are strong for a stock or mild engine, but I have no idea how well they hold up on an engine like that.
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Old Dec 20, 2007 | 06:30 PM
  #39  
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Originally Posted by LD85
Ooops, I looked at it again and it says

FOR 400 ENGINES THAT WILL BE RUN UNDER 3000 RPMS,

You must drill steam holes.


Anyone using a Felpro 1010 on a 406?
OK
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Old Dec 20, 2007 | 07:45 PM
  #40  
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Originally Posted by Demonic85
If I were going with a high compression engine like that I would build it overkill with the gaskets. The 1010's are strong for a stock or mild engine, but I have no idea how well they hold up on an engine like that.
I still can't get used to 11-1 being called high compression.
C'mon guys.... 12, 12.5 is considered high.
11-1 shuld be considered a mild build for a gasket manufacturer.
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