Cooling issues

[redsled]

I have a 67 Monaco with a 22” factory rad. Has anyone ever switched the rad support to the 26” version? I have a built 383 in it and cooling can be an issue sometimes.
I have a line on one out of a 66 Chrysler 300 but am not sure of the fitment. Want to ensure it’s exact as there is shipping involved.
Any input is appreciated!

 

[mrfury68]

IIRC you may have to stick with '67-'68 Polara or Monaco 26" rad support. Not sure if '67-'68 Fury or Chrysler would work. Others here may have a more definitive answer for you. Good luck and that is a beautiful Monaco you have there.

 

[MoPar~Man]

I would be shocked if a Chrysler rad support wound't fit in a Monaco. But then again I'm shocked that your car overheats in Nova Scotia.

Hey - did the car originally have a 383? If so why didn't it come with a 26" rad?

(can you post the fender tag? Nice car.)

 

[CBODY67]

I concur, neat looking car. In one of the "right" colors, too.

In the 1968 Chrysler Parts book I downloaded from www.mymopar.com , using 1968 as a guide, there are only TWO C-body "yokes" for 1968. 22' Radiator "core" or 26" Radiator "core". Which means Plymouth Fury, Dodge Polara/Monaco, and all Chryslers take just TWO part numbers, depending upon the radiator bolted to it. Imperials are different, for whatever reasons, but with 28" radiators.

C-body B/RB non-factory a/c cars, standard cooling cars, got 22" radiators in 1968
(Mr. Gerald Morris has a '66 or '67 Newport conv 383 which has a 22" radiator in it. FWIW)
C-body B/RB factory a/c cars got 26" radiators.
Imperials got 28" radiators.

So look in Group 7 for the radiator (termed "core") listings and also for the core support (termed "yoke") part number listings for 1967 part numbers. www.mymopar.com

Enjoy!
CBODY67

 

[redsled]

I would be shocked if a Chrysler rad support wound't fit in a Monaco. But then again I'm shocked that your car overheats in Nova Scotia.

Hey - did the car originally have a 383? If so why didn't it come with a 26" rad?

(can you post the fender tag? Nice car.)

I did state that it was a built 383. It’s 12:1 compression. Heats up fast.
I gave it to a friend of mine to build and he went a little overboard. lol. But it sure is fun to dive.

 

[redsled]

I concur, neat looking car. In one of the "right" colors, too.

In the 1968 Chrysler Parts book I downloaded from www.mymopar.com , using 1968 as a guide, there are only TWO C-body "yokes" for 1968. 22' Radiator "core" or 26" Radiator "core". Which means Plymouth Fury, Dodge Polara/Monaco, and all Chryslers take just TWO part numbers, depending upon the radiator bolted to it. Imperials are different, for whatever reasons, but with 28" radiators.

C-body B/RB non-factory a/c cars, standard cooling cars, got 22" radiators in 1968
(Mr. Gerald Morris has a '66 or '67 Newport conv 383 which has a 22" radiator in it. FWIW)
C-body B/RB factory a/c cars got 26" radiators.
Imperials got 28" radiators.

So look in Group 7 for the radiator (termed "core") listings and also for the core support (termed "yoke") part number listings for 1967 part numbers. www.mymopar.com

Enjoy!
CBODY67

Thanks so much CBODY67. I’ll have a look at that later today and report back.

 

[rd92west]

I did state that it was a built 383. It’s 12:1 compression. Heats up fast.
I gave it to a friend of mine to build and he went a little overboard. lol. But it sure is fun to dive.

What are you running for fuel?

 

[redsled]

What are you running for fuel?

91 octane is the best we can get around here but I do use an octane boost to supplement.

 

[redsled]

I would be shocked if a Chrysler rad support wound't fit in a Monaco. But then again I'm shocked that your car overheats in Nova Scotia.

Hey - did the car originally have a 383? If so why didn't it come with a 26" rad?

(can you post the fender tag? Nice car.)

Yes, car was originally a 383. The best part is it’s a four speed.

 

[FURYGT]

I have a '68 Sport Fury with a 520" stroker and run a 4 core, narrow fin 22" radiator in it with a shroud and fan clutch and have no issues.

Is any part of your cooling system aluminum? I ask because I used to run a Mopar Performance aluminum water pump housing and found out the hard way that the green coolant that we have to run in our cars will turn acidic over time and eat any aluminum in the cooling system, which will end up clogging the radiator etc.

 

[redsled]

I have a '68 Sport Fury with a 520" stroker and run a 4 core, narrow fin 22" radiator in it with a shroud and fan clutch and have no issues.

Is any part of your cooling system aluminum? I ask because I used to run a Mopar Performance aluminum water pump housing and found out the hard way that the green coolant that we have to run in our cars will turn acidic over time and eat any aluminum in the cooling system, which will end up clogging the radiator etc.

I just run water in mine. It’s the original rad but built up to a 3 core from the original 2. It’s a 440 Source water pump. No shroud which I’m sure is part of the problem.
I’m looking to revamp the entire coolin system and want to ensure I give it every chance. Hence the switch to 26”.