283 Pilot Bushing
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Le Mans Master
Joined: Apr 2000
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From: New York New York
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283 Pilot Bushing
I just completed a 283 for my 61. When I went to install the pilot bushing it wouldn't go in. I checked the ID of the crank hole and it is .030" smaller than another crank I have.
I purchased a reground kit with the proper casting number. I could machine the OD of the bushing to fit, but I am concerned about the hole in the crank being centered.
Did GM make a different crank for an automatic and std.? I didn't think they did. To say the least I was a little cranky! :mad
I wanted to get it back in the car today.
[Modified by plaidside, 7:02 PM 4/14/2002]
I purchased a reground kit with the proper casting number. I could machine the OD of the bushing to fit, but I am concerned about the hole in the crank being centered.
Did GM make a different crank for an automatic and std.? I didn't think they did. To say the least I was a little cranky! :mad
I wanted to get it back in the car today.
[Modified by plaidside, 7:02 PM 4/14/2002]
Le Mans Master
Joined: Feb 1999
Posts: 5,841
Likes: 376
From: Mobile AL
Re: 283 Pilot Bushing (plaidside)
While they used the same cranks for automatics and manual trans during each model year, there were two pilot bushing sizes from different model years that are that are very close in O.D. It sounds like you have the smaller size crank hole.
A good auto supply house can sell you the right bushing.
A good auto supply house can sell you the right bushing.
Instructor
Joined: Mar 2000
Posts: 207
Likes: 0
From: Yuma, Arizona USA
Re: 283 Pilot Bushing (plaidside)
Yeah, back in the day, I'd always heard that there was one for the 'standards' and one for the conversion from auto to standard. Dorman makes or made both. Probably like Jerry said, just a different year thing. Its been a LONG time since I change a PowerGlide car to a standard.
POSSE ZR-1 Driver
Joined: Feb 2002
Posts: 3,980
Likes: 139
From: Groton CT
Re: 283 Pilot Bushing (d1_bradley)
Be glad there was a hole at all. In the 50's & 60's, engines were built specifically for the trans being used. I have had many old cranks machined for a pilot bushing because the auto trans cranks had NO hole for the bushing. They had an unmachined indentation.
