Aftermarket Coolant Overflow Tanks
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From: Medford, Oregon
Car: 1989 Iroc Z L98
Aftermarket Coolant Overflow Tanks
Post your aftermarket coolant overflow tanks, I am thinking of getting one to free up space under the hood and to give me better access to my battery.
I am looking at a few different units, here is the summit brand:

Any advice on shopping for one? I am running the stock radiator.
Thanks
I am looking at a few different units, here is the summit brand:

Any advice on shopping for one? I am running the stock radiator.
Thanks
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Joined: Dec 2012
Posts: 228
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Car: 1990 z28
Engine: 5.0
Transmission: t-5 wc
Axle/Gears: 4th gen 3.42 posi
Re: Aftermarket Coolant Overflow Tanks
that looks like a good one to me , as far as the windshield washer tank I took one from a forth gen and installed that.
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Joined: Jun 2000
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From: Enschede, Netherlands
Car: 82 TA 87 IZ L98 88 IZ LB9 88 IZ L98
Engine: 5.7TBI 5,7TPI 5.0TPI, 5,7TPI
Transmission: T5, 700R4, T5, 700R4
Axle/Gears: 3.08, 3.27, 3.45, 3.27
Re: Aftermarket Coolant Overflow Tanks
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From: Washington State
Car: 1983 BB 1995 Z28 Camaro's
Engine: 454-350
Transmission: TH350-4l60e
Axle/Gears: 373 posi-Stock
Re: Aftermarket Coolant Overflow Tanks
A guy does get tired of the plastic ones discoloring so badly.
Joined: Feb 2003
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From: PNW
Car: 91 Black Formula KR
Engine: 305 TPI R69/G92
Transmission: Astro A5-Pro 5.0-McCleod
Axle/Gears: US Gear 3.42 Eaton True Trac
Re: Aftermarket Coolant Overflow Tanks
Joined: Feb 2003
Posts: 2,498
Likes: 20
From: PNW
Car: 91 Black Formula KR
Engine: 305 TPI R69/G92
Transmission: Astro A5-Pro 5.0-McCleod
Axle/Gears: US Gear 3.42 Eaton True Trac
Re: Aftermarket Coolant Overflow Tanks
Uh, whrrr are they?
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Joined: Dec 2012
Posts: 228
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Car: 1990 z28
Engine: 5.0
Transmission: t-5 wc
Axle/Gears: 4th gen 3.42 posi
Re: Aftermarket Coolant Overflow Tanks
There behind the front bumper , he used 4th gen bottles thats my route , the washer boyyle fits prety well only needs slite mod on the bumper support and header panel ctr bracket . haven,t started with the overflow bot yet but it shouldn't be an issue.
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From: Medford, Oregon
Car: 1989 Iroc Z L98
Re: Aftermarket Coolant Overflow Tanks
overflow bottle is under the battery. can see the neck sticking up. the washer bottle is under the plastic panel by the hood latch. here is a write up although some don't need to alter the bracket at the hoodlatch.
https://www.thirdgen.org/forums/auto...indshield.html
https://www.thirdgen.org/forums/auto...indshield.html
Joined: Feb 2003
Posts: 2,498
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From: PNW
Car: 91 Black Formula KR
Engine: 305 TPI R69/G92
Transmission: Astro A5-Pro 5.0-McCleod
Axle/Gears: US Gear 3.42 Eaton True Trac
Re: Aftermarket Coolant Overflow Tanks
Wow, a lot of good info here...
Have a 91 Firebird, battery is on driver's side... and I havea BBS Turbo header I want to install, so I think I will go with the Canton choice (again, wipe it clean).... as for the 4th gen washer fluid, I'm gonna be placing my intercooler there.... so any options for a washer fluid that matches the canton coolant bottle?
Have a 91 Firebird, battery is on driver's side... and I havea BBS Turbo header I want to install, so I think I will go with the Canton choice (again, wipe it clean).... as for the 4th gen washer fluid, I'm gonna be placing my intercooler there.... so any options for a washer fluid that matches the canton coolant bottle?
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From: Downriver, MI
Car: 1986 IROC-Z
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Re: Aftermarket Coolant Overflow Tanks
What did you do to the existing mounting holes on the shock towers? Looks like you did something, but I can't make it out from the images.
Joined: Jun 2003
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From: Desert
Car: 1991 Z28 Vert
Engine: 383 single plane efi
Transmission: T-56
Axle/Gears: 8.8 with 3.73s
Re: Aftermarket Coolant Overflow Tanks
You can purchase any of the aftermarket stainless steel tube varieties out there and then just mount it under the radiator filler panel attached to the bracket that the hood latches too. It is very easy. Check out FueldSoul's solution: https://www.thirdgen.org/forums/fabr...ow-washer.html
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