Is 34" Radiator (6.0) a Direct Replacement for the 27" (5.3) Radiator??
04-21-2004, 11:26 AM
#12
On The Tree
Join Date: Nov 2002
Location: South Carolina
Posts: 154
Likes: 0
Received 0 Likes
on
0 Posts
The 34" wide radiator is a direct swap the only other thing you would have to change is the shroud but that is only if you keep the stock clutch fan. You said with the 28.5" radiator that your temps are 185-205 but how do you know this? Reason being is the stock temperature gauge in the dash is useless for telling anything other than if it is running hot or not, you have to use a scantool the get the temperature reading from the stock pcm or install a more accurate temp gauge. Just an example my gauge on my truck reads 190F where as the temperature is actually 177F.
04-21-2004, 12:40 PM
#14
TECH Fanatic
Join Date: Aug 2003
Location: Yorkville IL - Chicago
Posts: 1,382
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by 2ksleeper
The 34" wide radiator is a direct swap the only other thing you would have to change is the shroud but that is only if you keep the stock clutch fan. You said with the 28.5" radiator that your temps are 185-205 but how do you know this? Reason being is the stock temperature gauge in the dash is useless for telling anything other than if it is running hot or not, you have to use a scantool the get the temperature reading from the stock pcm or install a more accurate temp gauge. Just an example my gauge on my truck reads 190F where as the temperature is actually 177F.
04-21-2004, 02:00 PM
#16
TECH Veteran
Join Date: Mar 2003
Posts: 4,492
Likes: 0
Received 0 Likes
on
0 Posts
I got mine from ebay... ~$40. 
It came from a Suburban. It's direct fit and cools consierably (sp? I'm tired 
) better than the 28" core'd one did.
SOME of the 34" rads have a tranny heat exchanger and oil cooler. Oil cooler isn't really needed but is sure nice to have as extra cooling capacity.
DO NOT bypass the ATF cooler in the rad, that's the main way to pull heat from ATF.
It came from a Suburban. It's direct fit and cools consierably (sp? I'm tired ) better than the 28" core'd one did. SOME of the 34" rads have a tranny heat exchanger and oil cooler. Oil cooler isn't really needed but is sure nice to have as extra cooling capacity.
DO NOT bypass the ATF cooler in the rad, that's the main way to pull heat from ATF.
04-22-2004, 10:36 AM
#18
TECH Fanatic
Join Date: Aug 2003
Location: Yorkville IL - Chicago
Posts: 1,382
Likes: 0
Received 0 Likes
on
0 Posts
Where are you guys buying your Rad ??
I checked on OE - list is 640.00 ....ouch
Anyone got a line on aftermarket ??
Anyone got a line on a good low mileage used one ?? - I would be interested.
Thanks
I checked on OE - list is 640.00 ....ouch
Anyone got a line on aftermarket ??
Anyone got a line on a good low mileage used one ?? - I would be interested.
Thanks
04-22-2004, 12:56 PM
#19
On The Tree
Join Date: Apr 2003
Location: Md.
Posts: 172
Likes: 0
Received 0 Likes
on
0 Posts
i havent had any problems with cooling but i dont live in texas where it gets hotter than hell.stock fan,stock radiator,160* stat and some water wetter and my factory gauge reads at the 180-185 mark.oh yeah i dont sit in traffic much either i live in a pretty rural area.if i did some traveling further south and got in some traffic do you guys think id have a overheating problem?
04-22-2004, 01:08 PM
#20
TECH Apprentice
Thread Starter
Join Date: Jul 2003
Location: Houston, TX (La Porte)
Posts: 355
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by 4.8bowtie
i havent had any problems with cooling but i dont live in texas where it gets hotter than hell.stock fan,stock radiator,160* stat and some water wetter and my factory gauge reads at the 180-185 mark.oh yeah i dont sit in traffic much either i live in a pretty rural area.if i did some traveling further south and got in some traffic do you guys think id have a overheating problem?
I got my 6.0 34" radiator from LKQ Auto for $145 with the engine oil cooler built in. I then had to buy the oil cooler lines (1 piece) from GM & a gasket.