Lt1 steam pipe
TECH Regular
Joined: Oct 2008
Posts: 430
Likes: 0
From: Bahrain
put it back on. it needs to be there, steam pockets tend to build up in LT1 heads due to the reverese cooling system. steam pipe is the only way to release it. if urs is removed ur asking for trouble.
Definitely keep it. If you have aftermarket heads (mine are AFR), you can choose to have it on the front or back, and you don't have to use the stock style. You can use regular fittings and heater hose if you wish.
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TECH Veteran
Joined: Dec 2008
Posts: 4,147
Likes: 62
From: Little Rock, AR
Exactly. Any steam gets pushed to the back of the heads (why I earlier said that the back cylinder temps may rise). The GM engineers put them in the back to purge any steam/air. That is where they need to be. Coolant flows from the front to the back.
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To further correct you on a detail the other guys who corrected you seem to have let go. It is not just aftermarket heads that have ports front and rear. Stock do too but that is because they are BOTH THE SAME HEAD.
Thread Starter
On The Tree
Joined: May 2010
Posts: 126
Likes: 1
From: Lincoln,Nebraska
OK i re-installed the stocker steam pipe but i'm haven trouble finding the original rubber washers.....does anyone know where to buy these new????? or a part number i could use .....
Last edited by Bullit95T/A; Jul 15, 2010 at 09:08 PM.
Thread Starter
On The Tree
Joined: May 2010
Posts: 126
Likes: 1
From: Lincoln,Nebraska
thanks for all the info i found the steam pipe seals GM# IS 10108689 ON THIS SITE IT HAS A LOT OF GM PART# IF ANYBODY NEEDS TO HUNT DOWN SUM NUMBERS FOR 93-2002 F-BODY GO HERE....http://shbox.com/1/Parts.htm.....
The threads will accept 1/4" pipe fittings. You could use AN fittings and push loc hose ends & hose. A 90 deg elbow on one side, with a tee on the other. -4 hose and fittings would be big enough. A short piece of hose from the elbow to the tee, then a longer one from the tee to the radiator.
They don't HAVE to be in back. Yes, it's in the back from the factory, but many have had them in the front and have had no problems, and many have even plugged both ends of the heads and had NO steam pipe and been just fine.
TECH Veteran
Joined: Dec 2008
Posts: 4,147
Likes: 62
From: Little Rock, AR
Pure nonsense. If you understand the point of the reverse flow cooling (apparently you don't), it has to be on the back. Those that have it plugged off are asking for issues. The engine will not run to capability if the rear cylinders are hotter than the rest.