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

Pulled the 461 out last week ouch!

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Old Mar 1, 2012 | 12:23 AM
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Default Pulled the 461 out last week ouch!

Well while trying to test and brake the new solid rearend last year autocrossing I broke something in the motor. I finally pulled the motor out last week to start fixing it. It looks like the #4 intake valve broke off which then broke both valve seats taking out the exhaust valve head then continued thru the motor bending two rods and many valves then put dents on every piston. Sent the allpro heads off to see if they can be welded back up and fixed. Race season is almost here so im getting a late start on the repairs.
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Old Mar 1, 2012 | 01:11 AM
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Pics of carnage a must!!


Sorry to hear about that.

Sounds like the Midas touch at work.
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Old Mar 1, 2012 | 10:11 AM
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did that with a 427fe in my tow truck once, not fun, I know the frustration, very sorry.
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Old Mar 1, 2012 | 10:22 AM
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sorry,,,but thats racing,, i drag raced for a lot of years,i always had one in the car ,one built ready to go and a slew of parts just waiting there turn. then i got smart. I QUIT!
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Old Mar 1, 2012 | 10:28 AM
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Here are a couple of pictures.http://www.facebook.com/media/set/?s...0714708&type=3

This is the 4th motor Ive blown up in the last 12 years racing this car. I go all out when I'm playing. This is the first time that I'm rebuilding a engine and not trying to thing of a way to make it faster. This thing has plenty of power for me I just want to get it back together
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Old Mar 1, 2012 | 10:31 AM
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not a member cant view..
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Old Mar 1, 2012 | 10:31 AM
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Originally Posted by thetoy
This is the 4th motor Ive blown up in the last 12 years racing this car.
Maybe you should find a different hobby...........

It happens. Even the best parts can fail. You'll get her back up and going in no time.
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Old Mar 1, 2012 | 10:33 AM
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Hey Tim, sorry to hear about the damage. I have seen some aluminum heads damaged pretty bad welded up and re machined that turned out good as new. Hopefully the heads are reusable.
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Old Mar 1, 2012 | 09:07 PM
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Originally Posted by cuisinartvette
not a member cant view..
Sorry I don't know any other way to post them
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Old Mar 1, 2012 | 09:20 PM
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breakage :-(
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Old Mar 2, 2012 | 01:09 AM
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Tom was a ls7 for sale.
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Old Mar 2, 2012 | 08:56 AM
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Ouch is an understatement

We'll see if this works



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Old Mar 2, 2012 | 11:25 AM
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I was in the passenger seat when all hell broke loose.


http://youtu.be/1FUXOazmi9I

Last edited by Corvette0096; Mar 2, 2012 at 11:27 AM.
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Old Mar 2, 2012 | 11:26 AM
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Originally Posted by AGENT 86


Ay carumba !! How did the cylinder walls look? Hard to tell in the pic.
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Old Mar 2, 2012 | 11:34 AM
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Originally Posted by AGENT 86
Ouch is an understatement

We'll see if this works



Thanks, you can actually see the valve turned sideway in the seat of the head.
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Old Mar 2, 2012 | 09:49 PM
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They all cleaned up at 60 over. It will now be a 468 small block.
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Old Mar 3, 2012 | 01:31 AM
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More furniture for the wife?
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To Pulled the 461 out last week ouch!

Old Mar 3, 2012 | 08:07 AM
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Originally Posted by Corvette0096
I was in the passenger seat when all hell broke loose.


http://youtu.be/1FUXOazmi9I
Watching that video, it seems like the motor was hardly being worked when all hell broke loose.
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Old Mar 3, 2012 | 10:38 AM
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I think it got hurt on the run before that one. I was getting a lot of blowby after the run before that one but I wanted to finish the day out and still had plenty off power. Should have know better but that's racing.
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Old Mar 3, 2012 | 05:54 PM
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Originally Posted by AGENT 86
Ouch is an understatement

We'll see if this works



Should buff out..
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