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Joined: Oct 2003
Posts: 814 Likes: 1
ChatMaster - 750
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OP
ChatMaster - 750
Joined: Oct 2003
Posts: 814 Likes: 1 |
Can anyone tell me what the difference is between the 350-A and the 366-P distributors that were used on the early 4 cylinders. Are they interchangeable???
Steve
'25 Superior "K", '79 Corvette , '72 Corvette LT-1 & 1965 Corvette Coupe
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Joined: Dec 2001
Posts: 10,379 Likes: 1
Technical Advisor ChatMaster - 10,000
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Technical Advisor ChatMaster - 10,000
Joined: Dec 2001
Posts: 10,379 Likes: 1 |
Hi SSG26K, The 350A distributor is used on the 17-22 490 engines. It has a rounded cam and must use the T-4 rotor. The arm used on this distributor is used with a pivot point. The 366P distributor is for the 1925 Superior engine. It has a more square cam. This distributor uses a short arm and is direct in movement. The distributors are not interchangeable. Because the 350A uses a pivot arm the movement of the distributor is exact reversed from the 366P. The 366PC can be used to replace either of the above distributors. I believe you have a 1926 Chevrolet and if so your distributor is the 374A. Your distributor is driven from the cam. The previous distributors listed above are all driven by the end of the generator. 
RAY Chevradioman http://www.vccacolumbiariverregion.org/1925 Superior K Roadster 1928 Convertible, Sport, Cabriolet 1933 Eagle, Coupe 1941 Master Deluxe 5-Passenger Coupe 1950 Styleline Deluxe 4-Door Sedan 1950 Styleline Deluxe Convertible 2002 Pontiac, Montana, Passenger Van 2014 Impala, 4-Door Sedan, White Diamond, LTZ 2017 Silverado, Double Cab, Z71, 4X4, White, Standard Bed, LTZ If you need a shoulder to cry on, pull off to the side of the road. Death is the number 1 killer in the world.
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Joined: Oct 2003
Posts: 814 Likes: 1
ChatMaster - 750
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OP
ChatMaster - 750
Joined: Oct 2003
Posts: 814 Likes: 1 |
Hi Ray..Thanks for the help. My '26 Superior is a late '25 with the generator driven distributor and oil pump. My 366-P distributor housing is in rough shape. I guess I can't swap housings with the 350-A that I have.Thanks again for all your help.
Steve
'25 Superior "K", '79 Corvette , '72 Corvette LT-1 & 1965 Corvette Coupe
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Joined: Dec 2001
Posts: 10,379 Likes: 1
Technical Advisor ChatMaster - 10,000
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Technical Advisor ChatMaster - 10,000
Joined: Dec 2001
Posts: 10,379 Likes: 1 |
Hi SSG26K, I can fix you up with either the housing or a completely rebuilt distributor. At this moment I am out the door on my way to the NW Meet in Kelso, WA. Will return Sunday if you still need help.
RAY Chevradioman http://www.vccacolumbiariverregion.org/1925 Superior K Roadster 1928 Convertible, Sport, Cabriolet 1933 Eagle, Coupe 1941 Master Deluxe 5-Passenger Coupe 1950 Styleline Deluxe 4-Door Sedan 1950 Styleline Deluxe Convertible 2002 Pontiac, Montana, Passenger Van 2014 Impala, 4-Door Sedan, White Diamond, LTZ 2017 Silverado, Double Cab, Z71, 4X4, White, Standard Bed, LTZ If you need a shoulder to cry on, pull off to the side of the road. Death is the number 1 killer in the world.
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Joined: Jan 2002
Posts: 194
Shade Tree Mechanic
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Shade Tree Mechanic
Joined: Jan 2002
Posts: 194 |
Well, Ray...now you put some confusion in my mind. I was able to acquire a nice 350-A that I thought I could use on my 1924. Do I have the right one? 
1924 Superior "F" Touring Car
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Joined: Jan 2002
Posts: 22
Grease Monkey
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Grease Monkey
Joined: Jan 2002
Posts: 22 |
Ray,
Having read through this thread about distributors prompted me to check mine out to see what I had.
I have a late '25 touring with a 374A driven from the end of the generator. If this has worked on mine will it work on Tom Chaney's '24?
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Joined: Dec 2001
Posts: 10,379 Likes: 1
Technical Advisor ChatMaster - 10,000
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Technical Advisor ChatMaster - 10,000
Joined: Dec 2001
Posts: 10,379 Likes: 1 |
Hi Tom & Sadie, I’m just back from the NW Meet and ready to tackle your questions. Tom: The 350A is not the correct distributor for your 1924. The 350A has a rounded cam and you need the square cam. The correct distributor for your touring is the same as the 1925, which is 366P or 366PC. Sadie: Your information does not compute. The 374A is driven by the center gear on the camshaft. It is not physically possible to use the 374A on a generator driven distributor. The 366P was a pot-metal distributor and "took a hike" early in life. I have seen the body from other distributors modified and the innards transferred from the bad distributor. In most cases they do not remove the tag and you end up with "assembled" distributors of unknown origin. Due to a host of research, two elderly fellows have teamed up and published a comprehensive pamphlet that covers all 4/8 cylinder pre-29 distributors. In addition they are selling bodies they have made for the 366P. The workmanship is outstanding. The body only, is available or you may ship them the shaft, cam, and drive gear and they will personally fit you a semi-finished distributor.
RAY Chevradioman http://www.vccacolumbiariverregion.org/1925 Superior K Roadster 1928 Convertible, Sport, Cabriolet 1933 Eagle, Coupe 1941 Master Deluxe 5-Passenger Coupe 1950 Styleline Deluxe 4-Door Sedan 1950 Styleline Deluxe Convertible 2002 Pontiac, Montana, Passenger Van 2014 Impala, 4-Door Sedan, White Diamond, LTZ 2017 Silverado, Double Cab, Z71, 4X4, White, Standard Bed, LTZ If you need a shoulder to cry on, pull off to the side of the road. Death is the number 1 killer in the world.
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Joined: Apr 2002
Posts: 956
ChatMaster - 750
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ChatMaster - 750
Joined: Apr 2002
Posts: 956 |
OK Ray....I'll bite, can you give out the name(s) of the elderly fellow(s) to contact for a new '25 distributor body? My original incomplete motor has a 366P, but the extra '25 motor I picked up has a 350A. Both of which are in poor shape.
Thanks,
Roger
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Joined: Dec 2001
Posts: 10,379 Likes: 1
Technical Advisor ChatMaster - 10,000
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Technical Advisor ChatMaster - 10,000
Joined: Dec 2001
Posts: 10,379 Likes: 1 |
Hi IMFALCO, I will save you the trouble. Send me what you have as a 366P and you will get back a complete and functional distributor. I will need all the parts for the 366P except the body. If anything is missing I may be able to salvage it from the 350A you have.
RAY Chevradioman http://www.vccacolumbiariverregion.org/1925 Superior K Roadster 1928 Convertible, Sport, Cabriolet 1933 Eagle, Coupe 1941 Master Deluxe 5-Passenger Coupe 1950 Styleline Deluxe 4-Door Sedan 1950 Styleline Deluxe Convertible 2002 Pontiac, Montana, Passenger Van 2014 Impala, 4-Door Sedan, White Diamond, LTZ 2017 Silverado, Double Cab, Z71, 4X4, White, Standard Bed, LTZ If you need a shoulder to cry on, pull off to the side of the road. Death is the number 1 killer in the world.
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Joined: Apr 2004
Posts: 13
Grease Monkey
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Grease Monkey
Joined: Apr 2004
Posts: 13 |
The two gentlemen that have '490' distributors are in New York state. They have cast aluminum housings. You can contact Bruce Wright at (518) 692-9328. Bruce is very knowledgable on '490' distributors.
chuck lynn
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