This is the # Ccas recommended to me. MOP750A. What rad # did u get. Kim
Cold Case 26in Rad fitment
- Thread starter C2ndLTpigeon
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I agree with everything you just said, BUT... That will not add one degree of additional cooling to the system, it just adds more parts to fail.
Again I agree with what you just said, but again it does not add to the cooling of the system.
A fixed fan will move air regardless of the temp of the air moving past it.
One could argue that the hp needed to spin the fan = heat creation so if you are not spinning a fan your engine will run cooler. But at higher speeds the air moving past the fan will be about the same as the speed of the air the fan is pushing. That means the force needed to spin the fan is negligible.
It is purely an efficiency thing, not an improved cooling thing.
Yes sir it will.....BUT you have to use the MP 5 blade viscous fan package. They offset those blades for a reason. They move a lot more air. It's all in the MP engine book if you want to read about it.
famous bob
mopar misfit
I gotta admit a 5 blade fan is about the only thing I didnt try last summer .
Fan diameter
Blade pitch
Number of blades
RPM
All contribute to the amount of air a fan can move.
We are not talking about a particular fan we are talking about a thermal clutch on a fan that does not add to the ability of a cooling system to cool.
Blade pitch
Number of blades
RPM
All contribute to the amount of air a fan can move.
We are not talking about a particular fan we are talking about a thermal clutch on a fan that does not add to the ability of a cooling system to cool.
If we are talking about cooling at idle what you say it true. If you are moving at a good speed and rpm, it is a different story. A clutch fan unloads the engine at high speed and rpm. This could result in improved cooling. Might be a minor factor, but a factor none the less.
I agree with your statement but at speed the fan is pushing air at the same speed or less than speed of the air flowing past it. This reduces or eliminates the energy need by the fan to move air so the net effect is little to nothing. Heck if you move the air past the fan fast enough it will make the fan add power to the engine. (Negligible but theroretically possible)
Think Windmill
Did this ever happen? I've got two A-body's that need a 26" radiator.
@oldkimmer said CC gave him a part # of MOP750 or MOP750A. On Summit they have it listed as a 24" core and an overall length of 29". Just measured my core support and the mounting points are 29". The OL on the MOP750 would need to be more than 29" for it to fit.
@Ccas , can you guys make a radiator based on a core support? I have a spare 26" radiator core out of a 73+ A-body. I can send it to you. Or just make a MOP750 rad with a 26" core and an OL of ~30" or 31". And I would suggest welding the brackets true with the front of the radiator so people could used a fan clutch.
Mopar rads have always been referred to as 26" units but are not really 26". The CC radiator mimics the OEM radiator very closely. There should be no reason to make a custom unit. However, if you can give us the dimensions, we can confirm just how close our dimensions are.
It's only a few isolated situations that our larger core prohibits the use of a clutch fan. I don't believe the 73 Duster is one of them. Again, we can confirm if we got a good look and/or dimensions of your unit.
thanks for offering to help!
Chris
I'll
I'll be ordering MOP750. I remeasured and my mounting bolts for the rad are 27 7/8" and not 29" so I was wrong earlier. The only thing that I don't like about it is how the brackets are not welded flush with the core support side of the radiator. The brackets being welded on as they are puts the radiator further toward the fan than it actually has to be, giving up real estate.
yellow rose
Overnight Sensation
I have a 73 Duster in the shop with your radiator and I can’t fit an OE clutch fan in there.
Well that sucks. How many rows is it? What part number? Thanks. Kim
I had the same issue, but I knew it going in. I used a Hayden 2947 fan clutch that is thinner. I wanted the better radiator so I just dealt with it.
I thought the 2947 nor the Jaguar clutch worked for this, apparently it’s based on the E-body 26” radiator.
I did a bunch of measuring & ciphering before I ordered the cold case. It is thicker than a stock radiator, so if you have the 70 & up aluminum water pump, there isn’t much room left. Not so much of an issue with the 69 & back water pump as it is about an inch shorter.
I never used the jag clutch as I read that it wasn’t a heavy duty design. The 2947 fits fine but it is a pain to install as there isn’t much clearance for the water pump bolts.
yellow rose
Overnight Sensation
I can’t remember the part number but it’s the 26 inch for a 73 A body. It’s a big 2 core. 1.25 inch cores IIRC.
I also knew going in I couldn’t fit a clutch fan in there. But the radiator is so nice and does such a good job I said screw it and put it in. It’s a nice piece for sure.
Anybody know if this shroud from Brewer's would work on MOP750 and MOP750A?
Brewer's Performance - Mopar A833 4-Speed Transmission and Component Specialists
Brewer's Performance - Mopar A833 4-Speed Transmission and Component Specialists
I bought the Cold Case radiator kit for my 68 Barracuda with their electric fan and shroud combo.I haven't installed it yet and will let you know how it works out.
Sorry man I just realized your asking about a 26" radiator. Mine is a 22" with the fan and shroud kit.
Sorry man I just realized your asking about a 26" radiator. Mine is a 22" with the fan and shroud kit.
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512Stroker
We are all here because we are not all there.
I have a Mopar 7 blade 18 inch non clutch fan available, if you need one.
C2ndLTpigeon
Mopar or no Car!
I sent mine back, I was told it would fit directly, but was then told when it would not that it was for a B and E body... I was also assured that a factory fan shroud would also fit it as well and it did not. Nicely constructed radiator just not a direct fit in a 73+ Abody. Like go-fish said, the brackets are welded in a way that makes the radiator stick out to far. I purchased the low profile Hayden clutch and this did not work as well. They mentioned that if they had an A body 26 in core that they can model one off of and another member offered them one, wonder if they will take them up on that and make a 26 direct fit for us A bodies.
512Stroker
We are all here because we are not all there.
Now you guy's know why I use and promote Griffin ExactFit radiators.
I have had to make some very slight adjustments to the mounting but I have always been able to use the fan that I had intended to use.
Not saying that the ExcatFit will work for everyone, but they are as close to a stock fit aluminum radiator that I could find.
I have had to make some very slight adjustments to the mounting but I have always been able to use the fan that I had intended to use.
Not saying that the ExcatFit will work for everyone, but they are as close to a stock fit aluminum radiator that I could find.
It will fit, but it will be spaced about 1/2 inch out from the radiator core. This leaves a big gap, so I am not really sure how much good it will do. I modified an original one so it would slip down in the L channel aluminum, rather than sit on top of it. Took me a few hours, but turned out nice.
mopowers
Well-Known Member
The radiators he's asking about are 26" radiators. The 325 shroud he linked to is for a 22" radiator. They are not compatible.
Yes, but the Cold Case guy said their 26” radiators are not really 26”. He said the OEM radiators weren’t really even 26” in a previous post in this thread. IDKWTF is going on. Waiting on n a reply from Speed Cooling radiators out of Chicago (Engineered Cooling Products 26" Small Block Mopar Radiator ).
They have what looks like a direct fit for 26” but says out of stock and I haven’t gotten a reply yet.
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mopowers
Well-Known Member
The measurements for those radiators are here: 66-74 A,B,C,E Body 17x26 Manual Aluminum Performance Radiator
The 325 shroud is for a 22" radiator. If you're creative enough you can make anything work - it won't be a 'bolt-on' though.
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