Adding power steering to a C2 correctly.
Thread Starter
Intermediate
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Adding power steering to a C2 correctly.
Thinking about adding power steering to my 66, 327 300 HP, but I want to do it correctly and the way it would’ve came from the factory. The alternator is on the driver’s side and the car does not have AC. Just curious on what kind of pulleys I needalong with the belt routing, etc. any pictures would be helpful as well thank you in advance.
Melting Slicks
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From: Central Michigan
2023 C1 of the Year Finalist - Modified
Le Mans Master
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From: Richardson Texas
That's a terrific write up and should help the OP immensely.
Here's a link to all the parts you need to do the conversion. https://www.zip-corvette.com/66-69-4...rsion-kit.html
Race Director
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A little food for thought. The original system works for being vintage '50's technology. It will eventually leak and make a mess, requiring a refit of seals etc. If you are open to a bit of new technology, Borgeson conversion is a blend of original GM parts and a much improved steering box with a better ratio and better feel when in use. I have the conversion on my car done by myself. Your choice! 
Dennis
Dennis
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A little food for thought. The original system works for being vintage '50's technology. It will eventually leak and make a mess, requiring a refit of seals etc. If you are open to a bit of new technology, Borgeson conversion is a blend of original GM parts and a much improved steering box with a better ratio and better feel when in use. I have the conversion on my car done by myself. Your choice! Dennis
Dennis
Safety Car
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Factory power steering is a great add on, all you need is the steel power steering pump pulley ( part # ends in 509) and the add on crankshaft pulley so the belt runs on the third groove forward. The belt will run from crankshaft to P/S pump only, nothing else will change on your 300hp engine. All the remaining linkage is bolt on and you will need to change the tie rod position to the fast steer position and reset toe in.
Team Owner
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From: Sitting in his Nowhere land Hanover Pa
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The key to factory PS is having a steering box that has been rebuilt correctly and the other parts of the steering system to be rebuilt correctly.
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Thread Starter
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Jim,
That's a terrific write up and should help the OP immensely.
Here's a link to all the parts you need to do the conversion. https://www.zip-corvette.com/66-69-4...rsion-kit.html
That's a terrific write up and should help the OP immensely.
Here's a link to all the parts you need to do the conversion. https://www.zip-corvette.com/66-69-4...rsion-kit.html
Thread Starter
Intermediate
Joined: Sep 2025
Posts: 26
Likes: 2
A little food for thought. The original system works for being vintage '50's technology. It will eventually leak and make a mess, requiring a refit of seals etc. If you are open to a bit of new technology, Borgeson conversion is a blend of original GM parts and a much improved steering box with a better ratio and better feel when in use. I have the conversion on my car done by myself. Your choice! Dennis
Dennis
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Racer
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From: Tacoma, WA
What motor do you have?
Only "correct" on 250/300/350 HP cars. I don't THINK it was offered on the 396 425HP engine (akin to the 365 and 375 SB cars).
Team Owner
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the only engines you could not get PS on a mid year was the solid lifter 327 from 63-65. All others with was standard fair.
Team Owner
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Instructor
Joined: Jul 2007
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From: Northern California
Power Steering
I have a complete power steering system that we will be removing from our 65 365 Hp coupe, we are doing a complete chassis upgrade. not sure when it will be coming out and soon you will need it.
Everything worked great with no leaks. also will all suspension pieces from A arms, trailing arms, brakes , sway bars, fuel tank, radiator, gauge cluster, complete heater set up and more!
If interested email frodrigues@amsmktg.com
Everything worked great with no leaks. also will all suspension pieces from A arms, trailing arms, brakes , sway bars, fuel tank, radiator, gauge cluster, complete heater set up and more!
If interested email frodrigues@amsmktg.com
Instructor
Joined: Aug 2020
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Remember, there were absolutely no improvements over the 40 yrs. or so, between the original Saginaw recirculating ball boxes and the later Delphi, variable ratio, integrated assist boxes.
They were all designed in the 50s. And nobody is sure if Delphi is really GM anyway.
They were all designed in the 50s. And nobody is sure if Delphi is really GM anyway.
Tech Contributor
Joined: Aug 1999
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From: Connecticut, USA
This statement can't be ignored as many times it is. These boxes are great if correctly built, junk if slapped together by inexperienced people. PS works fine, it is power assist not full power, however it won't matter if a worn, incorrectly set up stock box, rebuilt box, or even some of the junk called new boxes today are used.
Instructor
Joined: Jul 2016
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From: Central Md
Yes Zip has the pulley, they told me I needed it when I talked to the tech personnel. It maybe on back order.I just did this to my 63 convertible. My alternator is mounted on the passenger side. It was a little bit of a PIA to install, mostly because it didn’t come with any instructions. I wish I would have had the link above, but I started the install before I really started posting on the C2 forum. In hindsight I wish I would have installed the Borgeson, as Dennis (Bluestrioe 67) suggested. Mine is not original by any stretch of the imagination.
Drifting
Joined: Sep 2009
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From: Metro MI too close to the D
Remember, there were absolutely no improvements over the 40 yrs. or so, between the original Saginaw recirculating ball boxes and the later Delphi, variable ratio, integrated assist boxes.
They were all designed in the 50s. And nobody is sure if Delphi is really GM anyway.
They were all designed in the 50s. And nobody is sure if Delphi is really GM anyway.
Delpi parts are a brand only of GM at this time.
On another note I'm suprised you guys did not refer to the AIM to get all the GM part numbers...
and.... Not for the OP car, however the others wanting power assist, why have the parasitic drain on the engine to power a pump 100%, to then push a bunch of hydraulic fluid any where it can go, including the floor - they were the leajiest mess ever until the rack & pinion was used. Point is - electric assist. No drain on the LT4 LS7 or other LS restomod. and there are repurposed GM units available.