Mishimoto radiator for JK Hemi Conversion(AEV)
03-25-2021, 03:03 AM
#1
JK Enthusiast
Thread Starter
Mishimoto radiator for JK Hemi Conversion(AEV)
Anyone have any feedback on the Mishimoto radiator for JK Hemi Conversion(AEV)?
https://www.mishimoto.com/jeep-wrang...2007-2018.html
Thx
https://www.mishimoto.com/jeep-wrang...2007-2018.html
Thx
03-25-2021, 04:24 AM
#2
JK Jedi
Have not seen any Mishimoto talk in quite some time, even for the 3.8/3.6L engines. I don't know if people had such a bad taste in their mouth from earlier issues, or if improvements have been made and there have not been a lot of issues; therefore, not a lot of squawking about em in general.
It seems the general consensus is that Aluminum rads just don't handle the flexy nature of the wrangler frame very well and have a short life before a leak pops up. If it's just a street rig life probably is much better. I'm currently trying a Griffen aluminum in my jeep (just 3.6L) as it was larger than factory and not didn't cost a whole lot more, so guess I'll find how long it takes to fail. I realize that didn't really address your specific question, but I think your concern with that radiator is going to be more about aluminum holding up over time more than the cooling capacity for your hemi. I bet that jeep is fun to drive!
It seems the general consensus is that Aluminum rads just don't handle the flexy nature of the wrangler frame very well and have a short life before a leak pops up. If it's just a street rig life probably is much better. I'm currently trying a Griffen aluminum in my jeep (just 3.6L) as it was larger than factory and not didn't cost a whole lot more, so guess I'll find how long it takes to fail. I realize that didn't really address your specific question, but I think your concern with that radiator is going to be more about aluminum holding up over time more than the cooling capacity for your hemi. I bet that jeep is fun to drive!
03-25-2021, 06:09 AM
#3
JK Enthusiast
Thread Starter
Have not seen any Mishimoto talk in quite some time, even for the 3.8/3.6L engines. I don't know if people had such a bad taste in their mouth from earlier issues, or if improvements have been made and there have not been a lot of issues; therefore, not a lot of squawking about em in general.
It seems the general consensus is that Aluminum rads just don't handle the flexy nature of the wrangler frame very well and have a short life before a leak pops up. If it's just a street rig life probably is much better. I'm currently trying a Griffen aluminum in my jeep (just 3.6L) as it was larger than factory and not didn't cost a whole lot more, so guess I'll find how long it takes to fail. I realize that didn't really address your specific question, but I think your concern with that radiator is going to be more about aluminum holding up over time more than the cooling capacity for your hemi. I bet that jeep is fun to drive!
It seems the general consensus is that Aluminum rads just don't handle the flexy nature of the wrangler frame very well and have a short life before a leak pops up. If it's just a street rig life probably is much better. I'm currently trying a Griffen aluminum in my jeep (just 3.6L) as it was larger than factory and not didn't cost a whole lot more, so guess I'll find how long it takes to fail. I realize that didn't really address your specific question, but I think your concern with that radiator is going to be more about aluminum holding up over time more than the cooling capacity for your hemi. I bet that jeep is fun to drive!
Thanks for the input.
03-25-2021, 06:24 AM
#4
Super Moderator
Here is a tip to make a radiator last with / due to the flexing. Take out those 2 long bolts at the top holding the rad in and put some BLUE loctite on them and reinstall with about 1/8" - 3/16" slop before they tighten up. Allows the rad to move independent of the frame it is mounted on and absorbs flex.
JKJB which town are you in?
JKJB which town are you in?
03-25-2021, 06:28 AM
#5
Super Moderator
Here is a tip to make a radiator last with / due to the flexing. Take out those 2 long bolts at the top holding the rad in and put some BLUE loctite on them and reinstall with about 1/8" - 3/16" slop before they tighten up. Allows the rad to move independent of the frame it is mounted on and absorbs flex.
JKJB which town are you in?
JKJB which town are you in?
03-25-2021, 07:11 AM
#6
JK Enthusiast
Thread Starter
Here is a tip to make a radiator last with / due to the flexing. Take out those 2 long bolts at the top holding the rad in and put some BLUE loctite on them and reinstall with about 1/8" - 3/16" slop before they tighten up. Allows the rad to move independent of the frame it is mounted on and absorbs flex.
JKJB which town are you in?
JKJB which town are you in?
Thanks for the tip
03-25-2021, 01:16 PM
#7
JK Enthusiast
Thread Starter
What do you all think about these options:
1). AEV Rad (1 Year warranty)
2). Northern Radiator ( 1 yr or 2 yr warranty)
3). Mishimoto - $920 (lifetime warranty)
1). AEV Rad (1 Year warranty)
2). Northern Radiator ( 1 yr or 2 yr warranty)
3). Mishimoto - $920 (lifetime warranty)
Trending Topics
03-25-2021, 02:08 PM
#8
Super Moderator
I have little faith in the Mishimoto, there's just been so little good posted about them through the years. Maybe things have changed, but it's tough once you've got a bad reputation.
03-25-2021, 02:18 PM
#9
JK Jedi
"Lifetime warranty" sounds good and all, till you're on your 3rd replacement 
. At some point you get tired of performing the labor and units failing.
. At some point you get tired of performing the labor and units failing.
03-25-2021, 06:51 PM
#10
Super Moderator
Woudn't we all just kill for one of those custom brass rad shops that used to be 2 to a block!!
JKJB - I am lucky and was one of the reasons I chose the 5.3 Chev and that was I get to use the stock Jeep rad.
JKJB - I am lucky and was one of the reasons I chose the 5.3 Chev and that was I get to use the stock Jeep rad.