Author Topic: Oct 65 hipo water pump  (Read 2986 times)

Offline poboy427

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Oct 65 hipo water pump
« on: June 02, 2014, 07:18:49 PM »
Just confirming since I've heard conflicting information on the OCT '65 hipo water pump. I have a Nov 65 built Shelby, Oct 65 assembled Hipo engine.  My Tony Gregory book says the C6OE-A casting was not used until model year '67 and service replacements. I can't lay my hands my copy of Bob Mannel's book so here I am. It appears the cast iron 6 vane-C5OE-A casting is correct for my Shelby. Any disagreement?


Thanks Ray
« Last Edit: June 02, 2014, 07:46:50 PM by poboy427 »

Offline jwc66k

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Re: Oct 65 hipo water pump
« Reply #1 on: June 02, 2014, 08:22:18 PM »
I have a Nov 65 built Shelby, Oct 65 assembled Hipo engine, and it appears the cast iron 6 vane-C5OE-A casting is correct for my Shelby. Any disagreement?
My Tony Gregory book says the C6OE-A casting was not used until model year '67
Thanks Ray
Tony Gregory is wrong, Bob Mannel is correct - there should be a C6OE-A casting part number on the pump housing, with a six blade impeller inside. The changeover date appears to be around August for the 66 model year. I went thru this for my Oct 65 San Jose "K".
Jim
I promise to be politically correct in all my posts to keep the BBBB from vociferating.

Offline Bob Gaines

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Re: Oct 65 hipo water pump
« Reply #2 on: June 02, 2014, 09:17:17 PM »
Just confirming since I've heard conflicting information on the OCT '65 hipo water pump. I have a Nov 65 built Shelby, Oct 65 assembled Hipo engine.  My Tony Gregory book says the C6OE-A casting was not used until model year '67 and service replacements. I can't lay my hands my copy of Bob Mannel's book so here I am. It appears the cast iron 6 vane-C5OE-A casting is correct for my Shelby. Any disagreement?


Thanks Ray
C5 cast iron pump would be correct on the earlier build (65 production) 66 carryover cars but The C6OE-A pump was used on the regular 66 GT350 production cars (after 252) from all reliable evidence . I hope you are mistaken that the Tony Gregory book would say that the C6 pump was not used until 67.
Bob Gaines,Shelby enthusiast, Shelby collector , Shelby concours judge SAAC,MCA,Mid America Shelby

Offline poboy427

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Re: Oct 65 hipo water pump
« Reply #3 on: June 02, 2014, 11:58:45 PM »
Glad you guys caught that for me!! I have found the Tony Gregory 4th edition book to have more than one error.  Here is the text from Gregory, copied and typed exactly, including all the improperly inserted commas.  :-\ What he wrongly infers is that all C6OE-A pumps came without the 6 vane Hipo impeller. He stated elsewhere in the back of the book that L-8 occurred at May 1965-August 1965. The water pump section has some accurate info and some inaccurate.  Again thanks out to Jim and Bob for correcting this.~Ray


"High performance 289's built before August '64 use aluminum pumps with part numbers C3OZ-8501-B, and casting number C3AE-D, or C4OE-A.  After August '64 part number C5OZ-8501-A, and casting number C5OE-A were used.   At change L-8, C5OZ-8501-A, B cast iron pumps with casting number C5OE-A, B replaced the aluminum pumps.  Mustangs of 1967 vintage, and service replacement, employed a standard 289 pump, with part number C5OZ-8501-C, D and had a C6OE-A casting number. Author is also in belief that if a HP pump was not handy, at any point, during the engine building process, a standard pump was fitted. Water pumps were painted engine color on '65-67 engines but author believes a few 64-1/2 cars slipped through and were left natural. It should be noted that the timing cover changed at L-8 with added support for the heavier cast iron pump".

« Last Edit: June 03, 2014, 12:13:37 AM by poboy427 »

Offline J_Speegle

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Re: Oct 65 hipo water pump
« Reply #4 on: June 03, 2014, 01:13:20 AM »
  Wow - unpainted water pumps on factory engines ???????

Would bet someone saw a early road test with a natural pump possibly due to a replacement ;)

There is an early Shelby picture that pops up every so often with a natural timing cover :o
Jeff Speegle

Anything worth doing is worth doing concours ;)