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#1 |
Registered User
Join Date: Jan 2008
Location: Raleigh, NC
Posts: 321
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New Radiator Issue
I'm installing a new 4 core radiator with new supports for a 4 core but it seems the radiator sits too high. The radiator seems to sit down as far as it can go, but there is about a 1 1/2" gap on the top support between it and when it needs to bolt to. Has anyone else run into this issue? David
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#2 |
Registered User
Join Date: Jan 2007
Location: pittsburg kansas
Posts: 894
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Re: New Radiator Issue
to me it looks like the wrong top peices. i have a four core in mine and from the support the hold downs go straight out with little cups for the rubber. yours appear to dip down about a inch.
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#3 |
Registered User
Join Date: Jan 2007
Location: pittsburg kansas
Posts: 894
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Re: New Radiator Issue
its not a very goo pics but the best i got. if you look close mine goes straighter out than yours.
![]() ![]() Last edited by 70stroker; 06-13-2009 at 01:17 PM. |
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#4 |
Registered User
Join Date: Jan 2008
Location: Raleigh, NC
Posts: 321
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Re: New Radiator Issue
Do you have a picture of yours? Here is what mine looks like.
Last edited by Hawker7; 06-13-2009 at 01:20 PM. |
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#5 |
Registered User
Join Date: Jan 2008
Location: Raleigh, NC
Posts: 321
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Re: New Radiator Issue
I did some measuring and my old and new radiator are the same height. Also, the hardware seems to match, the only difference is the 4 core is longer. I really don't know what is causing it to not fit. Are the rubber retainers the same for the top and bottom? The only thing I can think of is the rubber retainers slots aren't deep enough.
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#6 |
PROJECT 7DEUCE
![]() Join Date: Dec 2002
Location: GRANTS PASS OR
Posts: 21,608
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Re: New Radiator Issue
Make sure the bottom rubbers are pushed all the way into the lower mount......
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GO BIG GREEN ![]() MEMBER #6377 72 k-5 daily driver 6'' lift 35'' 350-350-205 slowly getting rust free. Project "7DEUCE" check out my build http://67-72chevytrucks.com/vboard/s...d.php?t=267665 Tim Powell..R.I.P EastSideLowlife..... R.I.P.. |
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#7 |
Active Member
![]() Join Date: Dec 2003
Location: Waterbury, CT
Posts: 591
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Re: New Radiator Issue
I purchased a new 4 core rad. I was trial fitting the rad in the rad core and had a similar problem. My top rad brackets look similar to yours. What I figured out was that the new rubber mounting cups I bought are bigger than the originals. I trial fitted the rad with the old rubber parts and got a much better fit. I am going to be looking for some old rubber mounting cups that are in good fit.
Last edited by 72swbcamo; 06-13-2009 at 09:31 PM. |
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#8 |
Registered User
Join Date: Sep 2008
Location: Tempe, AZ
Posts: 770
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Re: New Radiator Issue
I had the same exact problem...I notched out the core surpport a bit where the bottom "holder" goes to allow it to sit down a bit further.....Not perfect but not too bad...also, once you start tightening down the top brackets it will seat in the rubber a bit too....
One other problem I had was the fins on the new radiator wasn't allowing the fan shroud to sit flat...so I had to grind them down on both sides as well! Btw, my mounts were all original....it was all in the radiator....I had my original radiator there for comparison. Dan
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My Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=309288 Last edited by Rack Man; 06-14-2009 at 05:07 AM. |
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#9 |
Sierra Grande Club
Join Date: Jan 2007
Location: New Mexico USA
Posts: 2,433
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Re: New Radiator Issue
I had a similar problem, but I only removed everything for paint during my rebuild. After double checking everything, I just pushed down real hard to get the bots started then I bolted it a little at a time until the top brackets were level.
s/t
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1971 GMC Sierra Grande, 1/2 ton short wide, original 4 bolt 010 020 block & heads. (matching #'s). 383 stroker, SMI q jet 750 cfm, Lunati Voodoo 60102 cam, Scorpion roller rockers, Spin Tech pro street mufflers with X pipe. ![]() Last edited by Sport/Truck; 06-14-2009 at 08:16 AM. |
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#10 |
laying low
![]() Join Date: Mar 2001
Location: Searcy, Ark. USA
Posts: 13,274
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Re: New Radiator Issue
It's a fairly common thing. I also put a 4 row in mine with new insulators and brackets. Mine fit as yours at first but did sit down. The shroud would not bolt up on the 4 row rad. The thicker core spaced the shroud mounting points about 3/4" out. As I haven't found a shroud to fit a 4 row modding one might be an option, if I don't go with an electric fan.
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Boog 69 Chevy stepside, 358/T350, 4.11 posi, 4.5/4 drop, rallys, poboy driver primer is finer 91 Chevy sportside, Tahoe, Yukon & GMC Crewcab All GM..'nuff said. I stand for the flag and kneel at the cross |
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#11 |
Registered User
Join Date: Jan 2008
Location: Raleigh, NC
Posts: 321
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Re: New Radiator Issue
yep, what most people said in the posts I found to be true. With everything put in the way it should it sticks up about an 1 ". Nothing I did would make it sit lower, so I just made some spacers and bolted it in. I have no idea why they make these with these dimensions as they seem to fit poorly for everyone. I also ditched the shroud as it would not fit at all. How do these run without fan shrouds? It is a stock 350, so do you think overheating will be an issue?
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#12 |
Senior Member
Join Date: Aug 2003
Location: Lubbock, Texas
Posts: 2,443
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Re: New Radiator Issue
If you radiator was originally a smaller one, then your core support may not have the lower lip bent out like the one on a 4 core. The lower cups that holds the rubber mounts will catch and sit on that lip of your core support if it was not originally bent out. Not sure if this is part of the problem but it helped on mine.
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72 Cheyenne Super 80 Silverado Blazer 2wd |
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