amc 360 radiator

[Skylerm727]

82 CJ7 with AMC 360 w/ 4 barrel holly....I'm not sure as to what radiator to buy to compensate the larger motor i would like some suggestions. something not too expensive I'm really not looking to go over the $AMC 150 range but i know happens. I'm not racing, its eventually going to be my daily i just need a radiator that's not gonna hurt the motor and fit with the least amount of modifications; also if it is relevant i have replaced the fan with an electric one. The mounts are broken for the most part on the fan so i have rigged it with zip ties until i get to that issue which all in all i am fine with for the moment i would just like radiator suggestions or inputs....

 

[elwood blues]

Aluminum VS. Copper-Brass Radiator: Final Thoughts

Griffin Radiator - GENERAL FAQ


From what I've read over the years, and what these two different places say, aluminum is the best bet. It cools more efficiently as the same size copper/brass radiator. Air flow is a big deal, if you already have an electric fan, you may want to upgrade to a dual fan setup, one that runs all the time and one that runs on a thermostat.

 

[Turbogus]

My '78 has a transplanted 360 and I went through the entire cooling system before I got down to the best arrangement for me and the climate I live in.

I'd advise considering those zip ties as only a TEMPORARY measure. On 'Black Betty. one of those actually abraded a radiator tube and it sprung a leak. Luckily a friend of a friend that was builing up a '75 had a new in box 3 row copper/brass raditor that I got for free!
I went through sevral iterations of fans, originally 'BB" came with a pusher fan on the front of the radiator that was accidentally wired backward by the P.O.
Ultimately I went with the Ford Contour/Mercury Mystique double fan conversion setup, a FlowKooler water pump and, as a result a coil bent up Unpainted coat hanger in the lower and UPPER radiator hoses.

I've read those copper/brass comparisions for about 7 years now and I dig that the aluminum radiators run wider tubes than the brass copper and some of them are even horizontal for greater cooling capacity. In my case since this was a new in box copper/brass I went with it and it has yet to fail me.

A lift of the lynch lid to the many responders here when I was in the process, here and on other forums.

 

[Lumpy Grits]

Several on my Jeep'n pals run the Griffin radiators, and they're completely happy with them.
They do look to be well made.
LG

 

[PistolDave]

I ran the straight six radiator in front of my 401 in my CJ7 for 2 years with no problems. A clean radiator, healthy water pump, good fitting fan shroud with all gaps sealed, 19" seven blade GM fan (from an early 70's Cadillac I believe) and an aggressive HD fan clutch were part of this equation. With a 190 degree stat on days where the temp was between 99-104 degrees, 205 was the hottest it ever got. This was with a very stock 401 with timing properly set, well tuned carb, etc. Auto Transmission cooler separate from radiator and mounted in front of fuel tank so did not add to heat load of engine cooling system.

When I installed my SBC TBI 350 I used a CGJ/Bryce Thomas swap radiator, and it has been working exceptionally well. With a 190 stat so far I have been unable to get it over 190, in any situation. It was pricey, but seems to be doing the business. I had mine notched for power steering line clearance.

Jeep Radiators

 

[Skylerm727]

I ran the straight six radiator in front of my 401 in my CJ7 for 2 years with no problems. A clean radiator, healthy water pump, good fitting fan shroud with all gaps sealed, 19" seven blade GM fan (from an early 70's Cadillac I believe) and an aggressive HD fan clutch were part of this equation. With a 190 degree stat on days where the temp was between 99-104 degrees, 205 was the hottest it ever got. This was with a very stock 401 with timing properly set, well tuned carb, etc. Auto Transmission cooler separate from radiator and mounted in front of fuel tank so did not add to heat load of engine cooling system.

When I installed my SBC TBI 350 I used a CGJ/Bryce Thomas swap radiator, and it has been working exceptionally well. With a 190 stat so far I have been unable to get it over 190, in any situation. It was pricey, but seems to be doing the business. I had mine notched for power steering line clearance.

Jeep Radiators

so you had two fans running if i read correct ? one electric one off the motor? is that seriously possible? idk ive never seen it i guess i figure one infront of the other would mess with the air flow?

 

[Skylerm727]

I ran the straight six radiator in front of my 401 in my CJ7 for 2 years with no problems. A clean radiator, healthy water pump, good fitting fan shroud with all gaps sealed, 19" seven blade GM fan (from an early 70's Cadillac I believe) and an aggressive HD fan clutch were part of this equation. With a 190 degree stat on days where the temp was between 99-104 degrees, 205 was the hottest it ever got. This was with a very stock 401 with timing properly set, well tuned carb, etc. Auto Transmission cooler separate from radiator and mounted in front of fuel tank so did not add to heat load of engine cooling system.

When I installed my SBC TBI 350 I used a CGJ/Bryce Thomas swap radiator, and it has been working exceptionally well. With a 190 stat so far I have been unable to get it over 190, in any situation. It was pricey, but seems to be doing the business. I had mine notched for power steering line clearance.

Jeep Radiators

Several on my Jeep'n pals run the Griffin radiators, and they're completely happy with them.
They do look to be well made.
LG

2 row or 3 row for a v8?

 

[Skylerm727]

My '78 has a transplanted 360 and I went through the entire cooling system before I got down to the best arrangement for me and the climate I live in.

I'd advise considering those zip ties as only a TEMPORARY measure. On 'Black Betty. one of those actually abraded a radiator tube and it sprung a leak. Luckily a friend of a friend that was builing up a '75 had a new in box 3 row copper/brass raditor that I got for free!
I went through sevral iterations of fans, originally 'BB" came with a pusher fan on the front of the radiator that was accidentally wired backward by the P.O.
Ultimately I went with the Ford Contour/Mercury Mystique double fan conversion setup, a FlowKooler water pump and, as a result a coil bent up Unpainted coat hanger in the lower and UPPER radiator hoses.

I've read those copper/brass comparisions for about 7 years now and I dig that the aluminum radiators run wider tubes than the brass copper and some of them are even horizontal for greater cooling capacity. In my case since this was a new in box copper/brass I went with it and it has yet to fail me.

A lift of the lynch lid to the many responders here when I was in the process, here and on other forums.

the zip ties are for sure temporary lol is your double fan doing you justice?

 

[Skylerm727]

Aluminum VS. Copper-Brass Radiator: Final Thoughts

Griffin Radiator - GENERAL FAQ


From what I've read over the years, and what these two different places say, aluminum is the best bet. It cools more efficiently as the same size copper/brass radiator. Air flow is a big deal, if you already have an electric fan, you may want to upgrade to a dual fan setup, one that runs all the time and one that runs on a thermostat.

I have the electric fan with two fans side by side but they are both rigged to run all the time..... So your saying you would go griffin?

 

[Lumpy Grits]

2 row or 3 row for a v8?

IIRC-3 row.
LG

 

[PistolDave]

I don't have 2 fans, just the engine driven on the radiator. I do however have an electric fan on my Transmission cooler which is mounted under the tub in front of the fuel tank. I did this to get maximum cooling to the radiator and separate the Transmission from the engine heat load. My Transmission cooler is a Derale stacked plate style heat exchanger that is very compact but has a lot of cooling capacity. The only time it had trouble keeping up was one trail we went up in 2 hi all the way, which generated a lot of heat in the 1800 rpm stall converter I am running. As long as I kept it spinning a little past the stall speed it cools fine, but lugging it at 1400 - 1700 heats it pretty good. In normal traffic operation here on a 95 + degree day it usually stays under 180 on the Transmission temp.

 

[Turbogus]

the zip ties are for sure temporary lol is your double fan doing you justice?

They're working great! I have them wired up to a DPDT switch where they run on two thermostat relays I have in line, one relay is set from 180* and the other (high speed) is set from 210*
That switch alllows L Relay Control, M OFF and R High Speed Override. I have the wiring diagrams if anyone needs. It was a fun project for me. At the same time I wired in a Ford PDB with FULL SIZED Bosch relays and enough fuses for two Jeeps

 

[Skylerm727]

mine is ran to the kill switch i have installed on when the jeeps on off when the jeeps off .

 

[Turbogus]

This is the diagram I used for mine.