Hi all,
I was curious what might be the common date codes for the HiPo 289 Special Fan blades and what might be the latest date code. I have seen:
Stamped on blade front side:
A65 (Input from Rickmustang)
B65
C65
E65 (Input from S2MS)
F65 (Input from S2MS)
G65 (Input from S2MS)
Stamped on blade back side:
J65
L65
A66
C66
I expect these blades were made in batches, so it likely there is not a dated blade for each month in 1965 and 1966. What is the latest date code out there?
What do you have?
I will also note, the date code and part number stamping on the early blades are on the front, difficult to see when installed in a car with fan shroud. The later blades are stamped on the back and can be easily seen. See attached images.
Thanks
Cory
I'll Have a look today and let you know Corey
Cheers
A65
Cory are you focusing just on 66 production or a wider look at 64-66 with the early style K code fans?
Just wanted to know where to start and stop and sampling
Hi Cory,
I've also seen G65 plus have in my notes an E65 and F65 being for sale in the past.
Dave
Quote from: J_Speegle on March 30, 2025, 06:11:43 PMCory are you focusing just on 66 production or a wider look at 64-66 with the early style K code fans?
Just wanted to know where to start and stop and sampling
Hi Jeff, I was mostly focusing on the 65-66 GT350 K-codes engines. But I'm open to any knowledge you want to share. I know the really early HiPo fan blades are also a little different.
Thanks
Cory
Quote from: s2ms on March 30, 2025, 06:34:14 PMHi Cory,
I've also seen G65 plus have in my notes an E65 and F65 being for sale in the past.
Dave
Hi Dave, Thanks for the input. Do you know if all three of your blades were marked in the front?
Cory
I've only seen photos of the G65 from an old post on the VMF, no other info on the other two...
OK looked through most of my stuff (low hanging fruit ::) and came up with these
Did find one that had a K85 date on it. Not sure of the source
Tried to also include FoMoCo with and without oval around it. Sometimes the FoMoCo are on the same fan blade as the engineering number and date. On others they are on different blades. Didn't include that detail
5E Hipo Fan Survey
Fan Date Stamped S C3OA-C?
63 L63 Front No
64 G64 Front No No Oval Above
64 J64 Front No No Oval Above
64 L64 Front No
65 A65 Front No No Oval Above
65 C65 Front No No Oval
65 E65
65 F65 Front No
65 G65
65 J65 Back Yes
65 L65 Back Yes
66 A66 Back Yes
66 C66 Back Oval FoMoCo above
66 J66 Back Yes
67 A67 Front No Oval FoMoCo above
67 J67 Back
Hope this helps
Hi Jeff,
That's amazing. Thank you for doing that. When I get home, I'll sort through both our lists and see which ones are missing.
Cory
Cory-Sending you a PM with information on the blades I have to add to your chart.
Regards,
Stan
Here is an updated list. I still need to add traditional info, but here is the list of observed date coded HiPo fan blades.
Cory