Hose Recommendation For 5.0l With Big Block Radiator

NotMyStang

New Member
Oct 14, 2003
25
1
4
I have a Griffin big block radiator (Cu-00042) and a 5.0L block with the brackets from a 80's Mustang in my 1967 Mustang (in progress). I have searched the forum and see people recommending using flex lines, or the lower hoses from a Maverick or Bronco II, but they all seem to have a small block radiator.

With the BB Radiator the inlet is pretty close to the alternator. I know others have run into this problem, but I cannot seem to find them. Has anyone else run into this and how did you solve it? What upper and lower hoses did you use on your 5.0L engine with late '80's brackets and big block radiator?

Thanks
GriffinRad50Block_zpsc92ce721.jpg
 
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65fastbackresto

Active Member
Apr 13, 2007
1,229
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This is cheesy but it`ll work, go to a muffler shop, and have pipe sized for the small end, and stretched to the right size at the other end. A good shop can fab it all the way from one end to the other, but don`t get your hopes up, that would be pricey.

You just need the pipe to adapt one size to another, keep it simple.
 

NotMyStang

New Member
Oct 14, 2003
25
1
4
I went to Advance Auto Parts and bought about 10 different hoses based on the results of some more aggressive online searching. I ended up using Dayco C71280 for the upper, and a Dayco C70438 for the lower
hoses. The upper hose only needed about 1 inch, max, removed from the thermostat housing end. The hose clears the alternator and serpentine setup very well. I originally thought I was going to need to couple two butchered hoses together to make this work. The lower hose needed some trimming as well, but I don't remember which end. Also be sure to use the anti-collapsing spring to ensure that the hose does not kink. To me the setup looks "OE" and only cost about $24 for the hoses I used. The other eight hoses did get returned.


Again this is the setup I'm using:
Griffin Radiator:

Part Number: CU-00042
Overall Height (in): 21
Overall Width (in): 22.56
Overall Thickness (in):
Core Height (in): 15.5
Core Width (in): 23
Core Thickness (in): 2.68
Row Quantity: 2
Radiator Style: Down Flow
Radiator Finish: Natural
Transmission Cooler: No
Inlet Location: Passenger Top
Outlet Location: Driver Bottom
Inlet Size: 1.5
Outlet Size: 1.75
Tube Size: 1.25 (in)
Fan Included: Yes, and the Shroud, Wiring, and Radiator Cap are included
Notes: V8 Ford "LATE MODEL" & OEM Big Block (EXC. MODULAR)

Being used with a 5.0L block with the serpentine setup from a 87-93 Mustang. The Waterpump is on the driver side, and the inlet for the radiator is on the passenger side. I believe the Griffin Radiator is pretty close to a Big Block Radiator for 1967 and 68 Mustangs.
photo1_zpscdf4c7f6.jpg


photo3_zps6e30f5f0.jpg


photo2_zpsbc9e7253.jpg


photo1_zps477ad34c.jpg



 
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Foot Hill

Member
Dec 9, 2014
53
20
18
I went to Advance Auto Parts and bought about 10 different hoses based on the results of some more aggressive online searching. I ended up using Dayco C71280 for the upper, and a Dayco C70438 for the lower
hoses. The upper hose only needed about 1 inch, max, removed from the thermostat housing end. The hose clears the alternator and serpentine setup very well. I originally thought I was going to need to couple two butchered hoses together to make this work. The lower hose needed some trimming as well, but I don't remember which end. Also be sure to use the anti-collapsing spring to ensure that the hose does not kink. To me the setup looks "OE" and only cost about $24 for the hoses I used. The other eight hoses did get returned.


Again this is the setup I'm using:
Griffin Radiator:

Part Number: CU-00042
Overall Height (in):
21
Overall Width (in):
22.56
Overall Thickness (in):
Core Height (in):
15.5
Core Width (in):
23
Core Thickness (in):
2.68
Row Quantity:
2
Radiator Style:
Down Flow
Radiator Finish:
Natural
Transmission Cooler:
No
Inlet Location:
Passenger Top
Outlet Location:
Driver Bottom
Inlet Size:
1.5
Outlet Size:
1.75
Tube Size:
1.25 (in)
Fan Included:
Yes, and the Shroud, Wiring, and Radiator Cap are included
Notes:
V8 Ford "LATE MODEL" & OEM Big Block (EXC. MODULAR)

Being used with a 5.0L block with the serpentine setup from a 87-93 Mustang. The Waterpump is on the driver side, and the inlet for the radiator is on the passenger side. I believe the Griffin Radiator is pretty close to a Big Block Radiator for 1967 and 68 Mustangs.
photo1_zpscdf4c7f6.jpg


photo3_zps6e30f5f0.jpg


photo2_zpsbc9e7253.jpg


photo1_zps477ad34c.jpg
WOW!
Now that’s what I call a helpful post!
thank you for taking your time to do that, you just helped me out too as I am in the same exact situation
this is what forums are all about
Thank you sir !