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car-15
06-20-2011, 20:08
dont over rev your motor...it was a 454 .30 over now its scrap metal.
http://i223.photobucket.com/albums/dd27/rruusseell1/ttt.jpg
http://i223.photobucket.com/albums/dd27/rruusseell1/tttt.jpg
http://i223.photobucket.com/albums/dd27/rruusseell1/tttr.jpg
Graves
06-20-2011, 20:12
Ouch! Damn valves couldn't keep up.
Tweety Bird
06-20-2011, 20:13
Yikes! Did you lose a spring, retainer, keepers or did the valve just fail?
car-15
06-20-2011, 20:15
Yikes! Did you lose a spring, retainer, keepers or did the valve just fail?
everything is still together up top, not sure if it floated them, or if the valve just came apart.
trlcavscout
06-20-2011, 20:15
That sucks! I have had that happen back in the day, had a big block Ford I ran at Bandimere with nitrous and I dumped a couple.
DSB OUTDOORS
06-20-2011, 20:33
That SUCKS!! Did the valves drop into the piston's and score the cylinders?? Is that the last pic?? I can't tell from the pics.
DFBrews
06-20-2011, 20:33
That is awesome. Next time we have a 15 liter Cummins throw a rod I will snap some pics when you have a piston and rod the size of a coffee can end up upside down the damage is awesome
DFBrews
06-20-2011, 20:34
That block is toast dsb the pic of the piston shows it really well
jplove71
06-20-2011, 20:35
Oh snap!
car-15
06-20-2011, 20:42
That block is toast dsb the pic of the piston shows it really well
yep it's junk, not to mention all the missing pieces that traveled through the intake and beat up all the other pistons, and others still that were in the pan, and oil pickup screen.
ray1970
06-20-2011, 20:43
I'm not really a big block Chevy guy, but can't you go at least .060" over on a 454? Maybe even more?
car-15
06-20-2011, 20:45
I'm not really a big block Chevy guy, but can't you go at least .060" over on a 454? Maybe even more?
yep actually i've seen a few .100 over
trlcavscout
06-20-2011, 20:59
502 is where the fun starts!
Mtn.man
06-20-2011, 21:25
I've grenaded alot of engines over the years.

502 Ha, Ha I got one in my Blazer.
632 is where it's starts.
and then you go to this:

http://ratraxinc.com/sitebuilder/images/37chev5-150x99_1_-250x165.jpg
ray1970
06-20-2011, 21:26
yep actually i've seen a few .100 over

Obviously I can't really tell from the pictures but it looks like the block could probably be saved.
blacklabel
06-20-2011, 21:36
That's going to take some work to clean up.

It pays to overbuild your valve train.
kwando
06-21-2011, 02:37
That's one thing I miss about my Honda S2000 is the 9000 rpm redline
car-15
07-10-2011, 23:10
almost got it all back together today, just need to get a brass Distributor gear tomorrow, and fire it up.
http://i223.photobucket.com/albums/dd27/rruusseell1/ooooo.jpg
http://i223.photobucket.com/albums/dd27/rruusseell1/oooo.jpg
http://i223.photobucket.com/albums/dd27/rruusseell1/ooo.jpg
spyder
07-11-2011, 11:11
Nice Vette. [Beer]
Tweety Bird
07-11-2011, 17:25
That is awesome. Next time we have a 15 liter Cummins throw a rod I will snap some pics when you have a piston and rod the size of a coffee can end up upside down the damage is awesome

Here's another awesome failure:
http://i8.photobucket.com/albums/a1/dklistul/001.jpg

http://i8.photobucket.com/albums/a1/dklistul/AA%20Engine%20Failure/002.jpg

A GE CF-6 HPT failure on an AA 767. Happened to mechanics during a ground run at LAX.
Graves
07-11-2011, 18:03
heh, a 4400 horse diesel can come apart in spectacular fashion too.

http://talk.newagtalk.com/forums/get-attachment.asp?action=view&attachmentid=80401

http://talk.newagtalk.com/forums/get-attachment.asp?action=view&attachmentid=80402

http://talk.newagtalk.com/forums/get-attachment.asp?action=view&attachmentid=80403

http://talk.newagtalk.com/forums/get-attachment.asp?action=view&attachmentid=80404

http://talk.newagtalk.com/forums/get-attachment.asp?action=view&attachmentid=80405
Yep, that's a piston.
DFBrews
07-11-2011, 18:15
^^^^^ both of those posts are awesome. I do not know anything about jet engines what happened?

and Graves let me guess Q series cummins from a train?
jmg8550
07-11-2011, 18:48
Hey car-15, why no rev limiter? Just asking.
car-15
07-11-2011, 21:06
Hey car-15, why no rev limiter? Just asking.
did, 7000 rpm to be exact, the builder has after some "coaxing" has taken blame for not checking piston to valve clearance and using a thick enough head gasket, and says he is going to make it right...
mjbealer
07-12-2011, 01:23
7000 rpm on a push rod is cooking! That was probably one of the best failures I have seen... wow!
Byte Stryke
07-12-2011, 07:32
heh, a 4400 horse diesel can come apart in spectacular fashion too.

http://talk.newagtalk.com/forums/get-attachment.asp?action=view&attachmentid=80401

http://talk.newagtalk.com/forums/get-attachment.asp?action=view&attachmentid=80402

http://talk.newagtalk.com/forums/get-attachment.asp?action=view&attachmentid=80403

http://talk.newagtalk.com/forums/get-attachment.asp?action=view&attachmentid=80404

http://talk.newagtalk.com/forums/get-attachment.asp?action=view&attachmentid=80405
Yep, that's a piston.


had that been my house?
"SO... do you feel like being on TV or writing me a HUGE Check?"
[LOL]
jerrymrc
07-12-2011, 08:10
This is why I build my own. Every brand has it's quirks and I check and recheck everything from the machine shop. Since I deal in Pontiac's it is even more important.