383 tear down, more damage than I thought
 

Well I finally took my 383 apart because it was making a knocking noise. So this is what I found I wish I just had a bad rod. Notice anything missing in the first Pic.

http://i257.photobucket.com/albums/h...1020080060.jpg

This is the damage that TB screw caused
http://i257.photobucket.com/albums/h...1020080070.jpg
http://i257.photobucket.com/albums/h...1020080065.jpg

And this is what it looked like when it was spit out.
http://i257.photobucket.com/albums/h...1020080066.jpg

BTW I need a stock lt1 head bad I will buy a set of stokers if someone has any.

Sorry to see that :( Those situations are never fun.

Jason

Ouch, I have sevral sets of lt1 heads, all untouched send me a pm just offer! sorry to see this. I think ill go lock tite mine now..

Good call, I think I am about to do the same...

HOLY SHIT...i'd be pissed

Wow thats crazy. I've seen that happen a couple of times. Are you rebuilding and just getting a new piston and head or what?
I'm guessing your running forged pistons because hypos have been known to self destruct with something tiny like a screw.

Damned, I've heard of that happening to a few motors now ...

Was the bore hurt? Why do you want a new head? It's not that beat up. Check the gasket areas with a machinists straight edge, check the valves and seats if if theres no deform or crack run it.

As good a time as any to have them "Smoothed" :nod:

It is hard to tell from the pic but the head is cracked and bent up at the water jacket.

I am going to get one new piston, they were off the shelf Ross Racing Forged pistons. The bore looks fine.

I am thinking of buying a head and cam package at the first of the year from AI or either converting to an LS1, which for some reason I just want to keep the Lt1 in the car.

That is one of the worst feelings. It couldn't have "just" been a bearing or something, it had to go and tear everything up.

Good luck getting it running.

Holy hell, that sucks!

Its crazy what things do when they get stuck insided cylinders, good luck getting it back together man.

Tony.

I never heard of such a thing happening cause of a throttle body. Hope everything works out.

wow thats crazy, look on the bright side you have a fresh rebuild if you decided to keep it

Ive got a set of ported stockers I'd let go pretty cheap if you want. They came off a 383 that trapped 118 in the quarter the only time I had it down there on 2.73 rear gears. I switched to a set of ported darts :-) Send me a PM if your interested.

I have decided I am going to do a nasty NA lt1 build since I already have a mean LS1 car. I always enjoyed outrunning ls1 with cars with lt1 power. I will start with the build at the first of the year after I finish the tunning on the 99SS.

Sweet! Glad to hear your keeping it an LT1. Sucks about that damn screw though.

wow... of all things a throttle body screw... im sorry man thats really lame.

crummy deal.

I have heard of that happening a cpl times as well.

Lloyd

I made sure i locktighted mine before i put the Throttle body on. That sucks

Hind sight is 20/20.

my tb has the back of the screws mushroomed.. they will never come out without the use of a dremel.

Mine just broke off when I went to take the damn things out. I don't see how a stock one could ever come out. I have a set of LS1 pistons that a guy had the same thing happen to.

all bolts are or should be mushroomed. from carbs to TB's that sucks real bad man. if it was just the piston thatd be one thing. but that head is fairly fucked :\

BBk should cover it. LOL That would be a dream.

That TB has been on there since about 2001, and as you can tell we have ported on it a little.

Sometimes you get whats coming to you.

It kinda looks like my TB, just minus the IAC.

https://ls1tech.com/forums/attachmen...1&d=1224724556

damn that sucks!!!!

That sucks balls man.

A screw took out my motor also just diferent screw, it shatterd the stock piston into about 5 peices and the car only has 29,000 miles to top it off.

kia sorrentos etc with the 3.5 liter do something similar a metal bushing for the wot butterflies flys out and does the same thing. makes a hell of a ticking noise

Hater.

There's irony if I ever saw it LMAO
(username VS comment)


But I agree, the poster was somewhat ignorant for having said something like that.

We always give each other crap. Did you notice what my sig pic says.

As for the user name that is my tag # pisses the ford guys off.lol

Damn man, that really sucks. Now I gotta go check mine to make sure there tight.

To bad to hear man..

Is the stock TB have that issue????

and screw????

wow thats unlucky... sorry man

Have that head repaired, it aint hurt THAT bad. I have seen a WHOLE lot worse repaired and ran just fine.


Just gotta find someone who KNOWS what they are doing.

Loctite those TB screws, and then take a center punch to them on the backside 2 or 3 times to flair out the end of the screw. Be careful not to bend the shaft.

There IS a reason NOT to run a cheap TB ;)


Sorry for your lose man!

Which TB do you recommend?