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Old 04-24-2018, 09:46 AM   #1
Bildo

 
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Coolant vent / crossover tube

Anyone know where to pick a coolant vent / crossover tube that connects to the front of both heads and to the radiator neck? I built one out of earls fittings and that leaks like a mofo.
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Old 04-24-2018, 02:42 PM   #2
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The stock one...?
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Old 04-24-2018, 05:17 PM   #3
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Yeah I found a universal one, I made one out of a Earls fittings kit and it worked like shit leaking on my new build. The one for our cars has the vent tube to the radiator out the top, which during the time I built the earls kit was pretty hard to find. Summit has them now. Called the dealership they didn't have any and couldn't order any. Another dealership tried to order me the wrong part. Seems crazy for such a common part. Should have snagged the one off my LS3 before I sold it.
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Old 04-26-2018, 09:11 AM   #4
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This is the one to use, which are typically not easy to find. Part #12602548 for the tube. I went to Ace hardware and got M6x1.0 bolts 30mm long for 67 cents a piece for installation instead of 8 bucks a piece from the dealership.
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Old 04-26-2018, 12:13 PM   #5
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Quote:
Originally Posted by Bildo View Post
This is the one to use, which are typically not easy to find. Part #12602548 for the tube. I went to Ace hardware and got M6x1.0 bolts 30mm long for 67 cents a piece for installation instead of 8 bucks a piece from the dealership.
I just popped that part number into ebay search and came up with some results. Doesn't look like a new stock one is hard to find at all

https://www.ebay.com/itm/05-11-LS3-L...sAAOxyB0VRyKbB
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Old 04-26-2018, 12:42 PM   #6
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Thats the old part number, call a dealership without one and see what they come up with. Hence why I posted it so people can find the part if they are in the same situation and do a search here.
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Old 04-27-2018, 07:22 PM   #7
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I just modified the stock one myself and never had an issue in 3 years. Where is the leak? Did you use o ring?
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