I've seen multiple comments about the rarity and expense of the "correct" parts for the 67 GT500 (correct fan and fan clutch being good examples) and while I'd like nothing more than to have all the correct parts on my tribute car, I'd be quite satisfied with substitute parts that have the correct appearance and function and are more available and affordable leaving the other parts for the guys that are trying to maintain or restore an original car. Having said that, I'm currently trying to chase down the fan, clutch, and water pump pulley arrangement for a 428 with AC and PS. First question is what are the part numbers for the "correct" parts and second question is are there substitute parts that would provide the correct appearance and function for these three items.
I wouldn't bother with the 500.00 reproduction fan clutch for a clone. You can you the C6OE-G fan and do not use what the parts store list for a 390 mustang. You'll need a 2711. It actually clears the radiator. I went through this finding a suitable substitute when I sent the factory fan clutch out for rebuild.
Thanks. That's the kind of info I needed.
Good information, Kieth, thanks for sharing
Certainly looks clean and concise. Addresses the question. +1
Got a part # for the fan pulley?
Isn't that a C7AE...something?
The water pump pulley used W or W/O AC is a C6AZ 8509 A, engineering number is C6AE 8509 A.
Quote from: The Going Thing on March 15, 2020, 01:35:17 AM
The water pump pulley used W or W/O AC is a C6AZ 8509 A, engineering number is C6AE 8509 A.
Is that a triple groove pulley?
Quote from: The Going Thing on March 15, 2020, 01:35:17 AM
The water pump pulley used W or W/O AC is a C6AZ 8509 A, engineering number is C6AE 8509 A.
Kieth , C6AE-A marked pulley is for factory A/C cars in the case of 67 GT500 . In the case of non A/C the C6AE-F pulley was called for from the factory .
I can't see the bottom of the pulley clearly and the chrome makes it difficult to see, I have the V/C's off for valve adjustment, so I can't turn it over. Do you have both you can take pictures of for comparison?
After pouring back over my notes and these forums I have generated this list of pulleys that are proper for a 67GT500 with PS, AC, and no thermactor pump. It confuses me that people utilize a mix of casting numbers, part numbers, and engineering numbers when they talk about these parts so I may have a mix of those in this list. Can anyone verify the correctness of this list.
Crank pulley C4AZ-6312-B
Water pump pulley C6AE-A
Alternator C5AZ-10344-K
Power steering 7AB
Are you buying for factory AC, or without? Everything changes. I also have my V/C's off for valve adjustment. I will turn the engine over after I put the cork gaskets on the covers and reinstall them.
I am hoping to replicate the factory AC.
AC cars use a different array of pulleys.
Quote from: mlplunkett on March 15, 2020, 08:27:08 PM
I am hoping to replicate the factory AC.
You also need the Shelby oil cooler set up for that to be accurate.
I looked for years to find those at the "Conventions" and other shows and it was my observations that it was a very rare set uo. I think in over 40 years of looking I only found one car.
Already have the oil cooler setup. It came off a 68 but the color is the only thing different as I understand it. So how correct is the list of pulleys?
Not one of them is correct for AC. Do you have the C6AE-6316 428 PI damper?
Yes I do and it came with a C1AE-6312-A cast iron double pulley which some people say is correct for an AC PS car. Others say I need the three groove steel pulley that covers up the groove that's cast into the balancer.
Did you say NONE of them is correct??? Just a few responses above Bob said that the C6AE-A water pump pulley was correct for 67 AC cars. This just keeps getting me more confused.
The damper/Balancer is a C6AE- A. Its use is limited to 428 PI and 1967 427 Fairlane. It's a pricey one at about 800.00-1000.00 in good shape. These are similar to the 64-5 427 damper. They incorporate one groove as part of the damper. The timing pointer is also limited to the 67 GT500, 428 PI. They are reproduced.
The non-AC cars use a single groove cast iron bolt on C1AE-A. The A/C cars use the stamped steel C5AE-D.
Trying to alleviate my confusion. I have the C1AE-A CI pulley and it is a 2 groove pulley. Others on this forum have stated that it is correct for non AC cars and the MustangTek site http://mustangtek.com/pulley/Pulley.html confirms that info. I've been searching several forums for this info and one of them stated that AC cars got the C4AZ-6312-B steel pulley with two 7.76" grooves and one 6.1" groove with the smaller front groove driving the AC. The MustangTek site doesn't identify the correct pulley for a 67 GT500 AC car but identifies that C5AE-D pulley with three 7.76" grooves as correct for 390 and 428 Tbirds and fairlanes. Look, I'm not trying to argue I'm just trying to be certain of the correct parts because ALL of these parts are correct for SOME Shelby and therefor expensive. I don't mind paying the price I just want to know I'm paying the price for the part that's correct for my car.
I had both of those pulleys. Sold 'em both cheap. No one wanted them. Like $20 each.
The GT500 uses the C1AE-A for non-AC applications. Remember, GT500's are dual alternator belt driven. The A/C cars use a single belt to drive the alternator. The C5AE-A is correct for A/C cars. I have a build sheet for an A/C car. So I will dig it out and take a look at it.
I know for fact the A/C crank pulley is what is pictured and listed.
Remember, you wanted something that was "correct in appearance" The power steering pulley is going to set you back 500.00. It's a very expensive endeavor. I just got in about 10 minutes ago. I four days off this cycle. I should be able to put the list together for you or brackets and pulleys.
Thanks. My goal is to get the full list of correct parts and try to find, and purchase, them. If something is unobtainable or so rare that the price is unreasonable (PS pulley) then I'll investigate substitutes. I've already ordered the heads and internals so finding all the bolt-ons has moved up the priority list. Do I need to specify anything else on the build besides PS, AC, no TE to tie down the list?
Quote from: mlplunkett on March 18, 2020, 09:37:01 AM
Thanks. My goal is to get the full list of correct parts and try to find, and purchase, them. If something is unobtainable or so rare that the price is unreasonable (PS pulley) then I'll investigate substitutes. I've already ordered the heads and internals so finding all the bolt-ons has moved up the priority list. Do I need to specify anything else on the build besides PS, AC, no TE to tie down the list?
I'm pretty sure there were some very close repro's made of the PS pulley and some may still be around. They were about $250 each as I recall?
There is a repro of the 7AC, not the 7AB. You could use the 80B in the 7ABs place. However, the AC cars use the 7AC. I saw the reproduction for 300.00.
That's the only thing I haven't bought thus far. I am actually going to purchase one today. It has to go to the chrome plater anyway. The compressor, clutch, brackets, bolts and other pulleys are already there.
We may be dealing with typos on top of everything else. I looked up the C5AE-A crank pulley and that's a single groove pulley which doesn't seem like it could work. Did I misunderstand?
http://www.mustangtek.com/pulley/C5AE-A_1.html
Forgive me. I was on my cell in the lounge before departure and didn't proof read. The crank pulley is C5AE-D. It's a three groove pulley and of the stamped steel variety.
OK. So far we seem to have corrected my list to:
Crank pulley C5AE-D
PS pulley 7AC
Water pump pulley C6AE-A
Can I get an Amen (concurrence) from any of the concours judges?
As a side note on the power steering pulley, it looks like the AF (5 3/4") and the 7AA (5 1/4") could be used as functional substitutes for the 7AC (7") but the smaller diameter would be noticed by an expert. The MustangTek site notes that both the 7AC and the AF are replaced by the 7AA. Both substitutes are cheaper than the $280 going price of the 7AC but I hope I can find a discounted 7AC. Anybody got one they don't need?
http://www.mustangtek.com/pulley/Pulley.html
You could used the "AC". However, if you're going to do so you're defeating the purpose plus you'll have to play the belt game. Remember, it's not just diameter but offset.
Good luck with your project. Time to say goodnight.