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Author Topic:   sealed gm spec motor dead cylinder, funny looking bolt
avila
Dirt Freak

Total posts: 217
posted April 05, 2005 10:57 PM  
bought sealed 350 gm spec motor from track dealer. #4 hole is dead, need to pull right side head. there are two headless bolts in the intake and one in the head. tops look like a mushrooms. how do i extract the bolts and what do i use to replace them at reassembly?

leapinlizard
Dirt Freak

Total posts: 402
posted April 06, 2005 07:38 AM  
Aren't they sealed for reason?

You might try and lug nut remover tool used for rounded lug nut's on passenger cars.

Or a chisel?

[This message has been edited by leapinlizard (edited April 06, 2005).]

dirtbuster
Dirt Forum Champ
Total posts: 2007
posted April 06, 2005 07:47 AM  
They are sealed so that you cant mess with them. Part of the joy of the spec/crate motor. Ideally you're supposed to take it back to the supplier for repairs, and then it gets resealed. That way the track officials know that it is still 'spec'. But it could end up costing you an arm and a leg plus time hauling it there and waiting for it to get fixed, plus prob cost more to buy than to build it yourself to start with. And somehow this crate motor deal is supposed to be so great.

If you do get them apart you will have to find (unlikely) someone who will sell you those bolts to replace them with otherwise the officials will be all over it. You can use regualr bolts just to put it back together but it will red flag the officials.

avila
Dirt Freak

Total posts: 217
posted April 06, 2005 09:06 AM  
ya i know they are sealed for a reason. at this point i'm not getting much help from track or the dealer. i just want to prepare for the worst, which will probably be what path this will take.

dirtbuster
Dirt Forum Champ
Total posts: 2007
posted April 06, 2005 09:22 AM  
again.... the joys of crate racing. gotta love it.

Istock66
unregistered Total posts: 2007
posted April 06, 2005 02:14 PM           send a private message to dirtbuster   Edit/Delete Message   Reply w/QuoteBBBBBB
The one track here starting to run crates this year has 5 approved repair shops. Those machine shops can get the bolts from gm to reseal the motor.

Thats why this track also has you dyno the motor before its raced and can pull your motor for a dyno anytime. Because machine shops can get the bolts and open them up.. sad but true even the crates can be cheated!!!

one of the approved shops here makes 400 blocks look like 350 by changing the block numbers for hobby cars,lol!!!

o5racer
Dirt Freak

Total posts: 402
posted April 06, 2005 08:25 PM  
How do they hide the bulges on the side of the block?

Istock66
unregistered Total posts: 402
posted April 06, 2005 09:07 PM           send a private message to o5racer   Edit/Delete Message   Reply w/QuoteBBBBBB
They didnt hide those on the block I looked at, but they can be ground flat and made to look cast again if you wanted to go all the way.

Ego Racing
Dirt Forum Champ
Total posts: 724
posted April 07, 2005 12:38 PM  
We are running the crate 604 motor and would not change a thing. Our series is teched by GM and if it is found you have tampered with them GM will prosicute for copywright infrindgment on the bolts. We have run ours with the 362ci aluminum head motors on alcky and were running 5the when another car took us out. We will be running it this weekend against big motor cars.

51racing
Dirt Maniac

Total posts: 138
posted April 07, 2005 02:29 PM  
OUCH, now that's a creative way to tech someone, bringing GM into it.


Istock66
unregistered Total posts: 138
posted April 07, 2005 04:13 PM           send a private message to 51racing   Edit/Delete Message   Reply w/QuoteBBBBBB
It doesnt have anything to do with copy rights, GM will provide the bolts to machine shops!!!

dirtbuster
Dirt Forum Champ
Total posts: 2007
posted April 07, 2005 06:03 PM  
i would think they could only prosecute if someone copied and sold the bolts. If they provide them to the shops then there wouldnt be much they could do.

but I am not an attorney by any means.



Eljojo
Dirt Forum Champ
Total posts: 968
posted April 08, 2005 04:40 PM  
Those bolts are available...one of the machine shops I use re-worked a crate motor that ran Wytheville. He spanked their booties till the track tore him down. Then----he was invited not to come back and the machine shop lost the oppertunity to be GM reps at our local track (Volunteer). You mess with one of those motors and you are asking for trouble, if not in the short run, you will find it in the long run!

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