Well I got the motor apart but have been busy with home improvements and work lately so I have not had a chance to post the carnage report.

What I found was the #2 rod basically snapped and took out the cam, 2 lifters, and 2 pistons. The heads were hit by the piston, but not real bad. Probably will have them mill the heads down some to be safe and make sure I still get a good seal on the head gasket and get a tad bit more squeeze on the charge.

#1 & #2 cylinder walls were pitted up by the flying debris and will need to be sleeved to ensure a good seal, which again is not a huge deal.

Its amazing the damage that occures in a slit second when something lets loose in these motors. At over 6k RPM the entire run, it doesn't take much to cause a WHOLE lot of damage, real quick. When I felt the power drop off I immediately killed the key, yet all this happened.

Here are some of the pictures:

Some shot of what I saw the night returning from the strip after dropping the pan.

Those chunks are what are left of the crower billet rod that broke







These are the #1 and #2 pistons that took a bunch of scrapnel.





You can see the damage to the cam and then in picture to follow the broken lifters also.

 

Upon pulling the rods out I found all the bearing to be in near new condition with the exception of #1 bearing which was only showed wear on the side nearest to the rod that broke. In addition I found that the #2 main bearing had spun, which may have or may not have been the reason for the damage. When a main spins it completely shuts the oil flow to the rods off, and the above will happen. However, there is another problem in the motor that was found at the track, and that is if you followed my last report - the rotor broke in two at some point also, which may have caused pre-ignition and will take out a motor in a split second.

So either the main bearing spun as a result of debris flying around (my thoughts, cause it still have the writing visible on the back of the bearing, which would have worn off immediately had it spun, or the rotor caused the damage. Nobody will ever know, but there is nothing that would have caused the rotor to break, it was found broken before the motor finally seized. Infact it was changed before the motor was fired up the last time and siezed at that point.

At any rate, she is broken. First blown up motor, so I have that out of the way now and I can get back to business.

I know you want to see more carnage so back to the pictures.

Picture of the block that got chewed up.










oops that one got in there too. Oh well its a good picture of dads machine that went 9.9sec the day I did this to mine. Sort of a bitter sweet day.



All in all though it gives me something to do this winter and something to look forward to this spring again. I am going to build the motor back exactly as it was. Was thinking about going bigger but the car is working so well lately that I hate to get more power and start spinning every time leaving the line, or worse breaking the rear.

I have a 10.0s combination for sure or maybe a high 9s in good weather and traction, so why mess with it. If I go bigger it will be definately in the 9s on motor alone and then I have to get all that safety stuff and I still really like driving the car on the street and don't want to compromise that.

Will keep you all posted on the progress of the buildup.

 

thing done grenaded. That sucks.

dad's car is sweet.

 

Let the nightmares/cold sweats begin.

 

I think it just needs a hone and some new rings. Wow, amazing you didn't oil down the track. Good luck with the buildup.

 

Scary

 

Damn

 

 

A few momento's for the shelf and then into the spring with a rebuilt engine, that's where the fun is, at the track with the family! Always something to work on over the winter!

PS was there a vid of the grenading run?

 

From reading your posts and viewing your videos over the last 2 1/2 years, if anyone can rebuild an engine, it's you.

I can't speak for others, but if I had my choice of Corvette's, yours would be it.

We already know what the engine will look like when your finished with the repairs.

 

Have you tried Marvel Mystery Oil? Better get two cans just in case Seriously though, will you be able to resist the temptation to go wilder than the 434? I know I wouldn't

 

http://www.speedomotive.com/shafirof...2-635%20hp.htm

Try a 472 cubic inch tall deck. Damn, you gotta love that 4.25" stroke. Now that's a stroker!! Yeah, 9s should come with ease!!

 

Sorry to see that. As we all know....if you play, sometimes you pay.