4th gen fan on 3rd gen?
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Joined: Jan 2004
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From: The "D"
Car: A Portly 85 Z28
Engine: 4.530 X 4.250 BBC
Transmission: under rated for this application
Axle/Gears: also under rated
4th gen fan on 3rd gen?
Anyone running a 4th gen fan set up? Looks like the rads are the same size?
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Joined: Jul 2000
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From: NJ
Car: 89 formula
Engine: 383
Transmission: 700R4
The Ramchargers fan is the ticket since I installed it no more temp creeping sitting in traffic.Plus the price is right! https://www.ramchargers.com/cgi-bin/...801&cat4=13802
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Joined: Jan 2004
Posts: 1,761
Likes: 4
From: The "D"
Car: A Portly 85 Z28
Engine: 4.530 X 4.250 BBC
Transmission: under rated for this application
Axle/Gears: also under rated
which one of those fans did you get?, there looks to be a few different twin setups.
Joined: Jan 2002
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From: Hampden Maine
Car: 1992 Firebird
Engine: Stealth Rammed 412 with TC78 Turbo
Transmission: '93 T-56
Axle/Gears: 3.27 9 bolt posi with PBR discs
I'm running a dual fan setup out of an LT-1 powered 4th gen currently and I'm VERY pleased with it. I've been told that the LT-1 setups actually flow better than almost any aftermarket units available. Here's a link to the thread I started (with pics) about the install. There are more pictures than what I posted directly into the thread, but there's a link to the extra pictures in the thread too. Let me know if I can answer any questions or anything, good luck with whatever route you pick!
Here's the thread: https://www.thirdgen.org/techbb2/sho...hreadid=186270
-Paul
Here's the thread: https://www.thirdgen.org/techbb2/sho...hreadid=186270
-Paul
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Thread Starter
Joined: Jan 2004
Posts: 1,761
Likes: 4
From: The "D"
Car: A Portly 85 Z28
Engine: 4.530 X 4.250 BBC
Transmission: under rated for this application
Axle/Gears: also under rated
Thanks alot, looks like you did it already! and I`m glad you took pictures. It looks as if the 4 th gen stuff is a lot deeper, this probably won`t work for me because of the big block with the long water pump setup. It`s close with the twin third gen fans now and those look to be even deeper. I do like the whole shroud that holds them and you did a good job on the install, but only one question, It looks as if the shroud doesn`t go all the way to the core support, what`s holding it down there?
Joined: Jan 2002
Posts: 818
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From: Hampden Maine
Car: 1992 Firebird
Engine: Stealth Rammed 412 with TC78 Turbo
Transmission: '93 T-56
Axle/Gears: 3.27 9 bolt posi with PBR discs
Actually it does go to the bottom of the core support, and I used the old power steering cooler mount to bolt it to the bottom of the core support. You can kind of see it in this pic:

The setup is definitely deeper than the 3rd gen units, but I think with a little ingenuity you could modify the shroud even more than I did so that you would have more clearance. I guess someone just needs to try it to find out
Let me know if I can help out with anything else!
-Paul

The setup is definitely deeper than the 3rd gen units, but I think with a little ingenuity you could modify the shroud even more than I did so that you would have more clearance. I guess someone just needs to try it to find out
Let me know if I can help out with anything else!-Paul
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