I would be happy to explain it if I knew wtf you were typing about.
What is "Run's"?
"Forget the NO"?
What's the matter w/ you and why are you being so angry? Are you drunk?

I just said it is one possibility and should be checked before jumping to conclusions that the motor is blown. What.. you don't think bad valve guides will suck your motor dry and cause blow-by and excessive exhaust smoke?

 

Do you really "blow" a valve guide when doing nitrous runs? They normally wear to a point of needing attention. He indicated no problems before the runs. Odds are in favor that he hurt one or more pistons. Blowing smoke rings out the oil filler is a telltale sign.

 

i agree it's entirely possible it is bottom end related. i only reference this because of an experience shawn97z28m6 had when he took his car to the track for nitrous runs and at the end of the day had blow-by and massive oil smoke out of the exhaust and discovered he had at least one cylinder where the valve guides were junk and his bottom end was fine. i believe jordon musser experienced the same problems. i'm sure a leakdown will tell all. in shawn's and jordon's case perhaps the guides just got to the point where the seals were overwhealmed? dunno...

 

I think that worn guides is more of a case where it would suck oil into the intake or exhaust, but if the valves weren't bent or warped they should still seal for combustion. Can't rule out your diagnosis, but my bet is damaged ring lands, maybe cracked rings if he's got obvious puffing out the filler hole. Hope not, but if he ran it low on oil, there might be all kinds of wear in there.

 

I read you... however if the guides are bad then it's possible the valves are not seating properly. Once again I'm not typing this as if it is the guaranteed problem. Just ONE possibility.

 

An engine RUNS when it is on. Or it makes RUNS down the track. Either way it isn't good without oil. A valve is gona stick from lack of oil long before it opens up to cause a leak.
NO is nitrous.
He said it didn't smoke from the exhaust until AFTER the runs at the track.
Even if his guides were bad, there won't be a problem with blowby from bad guides. The intake guides can NEVER cause blow by. The exhaust guides could theoretically but there is not enough clearance to do so not to mention the valve seals. Air will take the path of least resistance and go out the manifold to the pipes rather than "squeeze" thru the guides.
Don't see how anyone was being "so angry". You still never explained how the guides could be a problem.
Get a life
Read a book.

 

Knock off the flames, or posts will be deleted.

N2O = nitrous.

 

Actually yes it has been explained. Depending on the severity when valve guides go bad they will not seat properly. They can also hammer the snot out of the seat causing more damage resulting in valves that do not seal properly ultimately causing valves to burn up. Even before valves can burn gasses can get past them if the valve seat or valve has been damaged. As mentioned before the bad guides happened to two friends of mine. Whether it was N20 related or not.. who knows. The valves could've been loose in the guides and the extra cylinder pressure from N20 could've been the final dagger. I can't say for sure.
Path of least resistance? So what's the path of least resistance during the compression stroke? How about the intake/exhaust stroke? Do you believe all intake ports regardless of the head can fill a cylinder effortlessly? If so, why does the common torque curve start to peter out at a given rpm? How about the exhaust port? Do you believe 100% of all exhaust gasses escape during the exhaust stroke? Do you honestly believe a valve seal will be strong enough to resist the pressure from a cyilinder if the valve is not seated correctly especially during the exhaust stroke?
I like to explore other possibilities rather than giving some definite answer to someone when none of us have experienced this person's predicament first hand. Once again.. this is one possibility.

P.S. According to the Periodic Table of the Elements, "No" Nobelium.

 

SS RRR,

Did this happen to your friend's cars when they had built motors with forged pistons or stock motors with HE pistons?

 

Try to keep it friendly. We all disagree from time to time.

 

I can't believe how badly this thread has deteriorated. There's some real attitudes being displayed. SS RRR has simply SUGGESTED ONE POSSBILITY..... and he's explained why he feel it MIGHT be a possibility. A couple of you really need to get your attitudes adjusted. It's one thing to disagree with someone - that's encouraged when its constructive - but calling people names and posting condescending remarks is not the way to handle it.

 

stock internals

 

I guess we need the guy to let us know what he finds when he takes it apart.

 

I took it apart this morning. And I am now shopping for a 383 short block. I would try to post pictures of what I see but don't know how. Its worst than I could have ever imagine! For the past few days its got really bad, the smoking I mean. I started to hear a ticking sound so I really thought maybe it was a valve guide problem. Today I saw it wasn't. I actually had pieces of rings floating around in cylinder 3 and 5. The walls in those cylinders are totally scorched. I found a site called Golenengineservices that have pretty nice short blocks. They also have long blocks with LE heads on them. Im leanning towards the short block with AI heads and CC cam.

 

Ohh. By the way guys. My car only ran low on oil because I burnt it so fast. I never ran low before that.