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LT1-LT4 Modifications
1993-97 Gen II Small Block V8

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Old 03-24-2012, 08:17 PM   #1
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Default LT1 coolant crossover tube back of heads

this has a threaded fitting and seal into each head behind the intake. What is it called? I need new seals to put it back on after a head swap
the parts store has no clue
the fbody parts manual does not show it
thanks
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Old 03-24-2012, 08:30 PM   #2
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It is called a steam pipe. Dealer sales seals, had two seals per side of head.
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Old 03-24-2012, 08:53 PM   #3
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I used oil pan plug washer on mine. I picked em up from local part store.
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Old 03-24-2012, 09:52 PM   #4
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There is a thread replacing them with AN fittings and push loc hoses. Looks awesome costs about 60 bucks and will never have to worry about it again. Specially if you take the heads off, its a paint to get the banjo bolts.
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Old 03-24-2012, 11:39 PM   #5
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link to the thread??? mine is full of holes & the steam fitting is discontinued.
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Old 03-24-2012, 11:44 PM   #6
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http://www.ls1tech.com/forums/lt1-lt...-pictures.html

Funny part is the dude is now selling it for 140 bucks.
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Old 03-25-2012, 12:24 AM   #7
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Here's my thread on it with part numbers, etc:
An Coolant Crossover Conversion
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Old 03-25-2012, 02:07 AM   #8
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Steam pipe is still available from dealer, bought one last week for 97 camaro, comes with new pipe, both bolts and washers.
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Old 03-25-2012, 07:56 AM   #9
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Quote:
Originally Posted by cycletech View Post
Steam pipe is still available from dealer, bought one last week for 97 camaro, comes with new pipe, both bolts and washers.
You forgot to mention that it's $130. Far cheaper to convert to -AN lines.
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LT1 PARTS For Sale, MSD Opti, steam crossover tube, BMR swaybar, MAF, etc.
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Old 03-25-2012, 08:04 AM   #10
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Quote:
Originally Posted by TravisMcGill2000 View Post
I used oil pan plug washer on mine. I picked em up from local part store.
That's what I did too. The washers are 70 cents each.
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Old 03-25-2012, 08:45 AM   #11
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I just did the -AN/Aeroquip conversion and it cost $100. Never gone bust knuckles again on them stupid banjo bolts.
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Old 03-25-2012, 09:37 AM   #12
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I just used the copper plumbing fittings from Home depot $10 in parts about No clue why people spend so much on AN fittings for this simple piece.

inb4 they defend the quality and security of it not leaking, when copper plumbing fittings are used for the same thing in homes.
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Old 03-25-2012, 09:58 AM   #13
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Copper is used in a house and is soldered. You just put a soft metal into a soft metal. Piping in your house doesn't hit 200 degrees. Plus way to make your car look a redneck put it together, you should just make a PVC cold air intake while you're at it. YEEEEHAW! *spits in spittoon*
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Old 03-25-2012, 10:18 AM   #14
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I ended up doing the AN conversion. It was pretty simple and straight forward. It looks nice too.
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Old 03-25-2012, 11:03 AM   #15
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Quote:
Originally Posted by chief455 View Post
...
the fbody parts manual does not show it
...
It does.

Here is the GM seal. Some cheaper alternatives have already been suggested.
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Old 03-26-2012, 06:28 PM   #16
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Quote:
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It does.

Here is the GM seal. Some cheaper alternatives have already been suggested.
I couldn't find that crossover anywhere in the parts book!
With your pic I found them at Summit, ebay - thanks much everyone - great ideas and info
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Old 03-27-2012, 11:56 AM   #17
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Quote:
Originally Posted by gregrob View Post
Here's my thread on it with part numbers, etc:
An Coolant Crossover Conversion
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Old 03-27-2012, 01:25 PM   #18
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Quote:
Originally Posted by F0x Slaughter View Post
Copper is used in a house and is soldered. You just put a soft metal into a soft metal. Piping in your house doesn't hit 200 degrees. Plus way to make your car look a redneck put it together, you should just make a PVC cold air intake while you're at it. YEEEEHAW! *spits in spittoon*
Copper washers have been sealing banjo bolts since they were invented. Nothing wrong with that method. Look at any brake caliper, even on your 20k harley. You can't see them behind the heads anyway.
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Old 03-27-2012, 08:21 PM   #19
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Quote:
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Copper washers have been sealing banjo bolts since they were invented. Nothing wrong with that method. Look at any brake caliper, even on your 20k harley. You can't see them behind the heads anyway.
He didn't say copper washers. He said copper fittings as in copper plumbing. A copper crush washer is perfectly fine.
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Old 03-27-2012, 09:29 PM   #20
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OOPS, you're right. I should read closer.
On the subject of copper crush washers I've given this some thought and in this application I don't think they would be the correct alternative choice. Sometimes they can take quite a bit of torque to seal correctly and the aluminum of the head may strip before they crush correctly. The factory type washers or AN fittings are the way to go.
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Last edited by guppymech; 03-27-2012 at 10:25 PM..
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Old 03-27-2012, 09:29 PM
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coolant, cross, crossover, fittings, gaskets, heads, line, lt1, pipe, rear, sale, sealing, seals, steam, tube, washers


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