Need Bellhousing for a Late '56
Guys, I need a 3733365 bellhousing for my '56. I did not see anything in the latest driveline and thought someone might know a source. I would prefer a June or July 1956 date. I appreciate any help I can get. Brooks Glover (2141)
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Re: Need Bellhousing for a Late '56
Brooks, try Gary Pronesti (352) 638-5778 Gary....
NCRS Texas Chapter
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Re: Need Bellhousing for a Late '56
Brooks and Gary-----
1956-57 Chevrolet passenger car WITH 4 BARREL CARBURETOR was the same as Corvette and I believe all 58-59 passenger car was the same. However, I think some of the 3733365 for 1956-57 passenger cars were tapped for a different ball stud than a Corvette. So, if one obtains a 3733365 from a passenger car, one needs to be sure it's one with a 13/16-16 thread tapping for the ball stud.In Appreciation of John HinckleyComment
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Gary Nyland
1966 Black Corvette Air Coupe
2014 Black Z-51, 3LT Coupe
1955 Black Chevy Belair Gasser
1955 NomadComment
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Re: Need Bellhousing for a Late '56
Gary N., I would appreciate it if you would look and see what you have. I need a 3733365 with either a June or July 1956 date. I have a 3704922 but it is not correct for a late (August) 1956 Corvette. The '365 bellhousings do rather confuse me as I have seen some with some kind of press in clutch fork ball and I have also seen ones where the very top hole is not drilled. To be perfectly honest, I am not exactly certain how to identify what is correct and what is not. Any help out there? Thanks in advance to all who have responded to my post. Brooks Glover (2141)Comment
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Re: Need Bellhousing for a Late '56
Brooks------
I explained it above. If you find a GM casting #3733365 bellhousing and it has a 13/16-16 tapping for the fork ball stud, you'll have what you need. If it has a small size tapping (7/16", I think), it's not what you need. I have never seen and am not aware of any of these that have a pressed-in ball stud.In Appreciation of John HinckleyComment
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Re: Need Bellhousing for a Late '56
I've NEVER seen a pressed-in ball stud either.
ALL that I've ever seen were the 55-56 (922) style, where the ball stud is installed from the INSIDE of the housing with a wrench. The later 56 and later housings (365) have ball studs that installed from the OUTSIDE of the housing and requires an Allen wrench.
I just checked my housings and I have a 922 housing with a July (F296) date code and it has what I have always referred to as the 55-56 housing with the inside ball stud. There MAY have been some 365 housings used on very late 56 cars (Vette or passenger car), but the earliest application that I've PERSONALLY seen them on, or the earliest date code, was a 57.Comment
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Re: Need Bellhousing for a Late '56
Tom and Joe, I am mistaken about the press in clutch ball. The type that I am familiar with has a piece on the outside of the bellhousing that requires an allen wrench to remove. According to the latest '56 & '57 Judging manual, the 365 bellhousing is correct for my car. I am still wondering about the boss at the top of some bellhousings I have seen where the hole is not drilled but there is a tapped hole in the block. The 922 bellhousing I have has the top hole drilled. Can anyone shed light on this? Thanks in advance! Brooks Glover (2141)Comment
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Re: Need Bellhousing for a Late '56
Tom------
I didn't mean to imply that any '365' bellhousings used the smaller thread size ball stud fitting (i.e. the one that installs from inside the bellhousing). However, I can't say, for sure, that none did. So, to cover that base, I advised checking to be sure of the ball stud tapping size.In Appreciation of John HinckleyComment
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Re: Need Bellhousing for a Late '56
Brooks------
I don't think I've ever seen a 55-62 bellhousing that didn't have the uppermost, center mounting hole drilled. There may have been some, but I don't recall seeing any. Most small blocks, even those of much later vintage, have an upper, center bellhousing mounting hole drilled and tapped. However, when the change was made to die-cast aluminum bellhousings for the 1963 model year, the upper, center hole was eliminated from the bellhousings.In Appreciation of John HinckleyComment
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Re: Need Bellhousing for a Late '56
3733365 bellhousing cast for 57 year model can be found with both the small 7/16" stud that screws in from the inside and the large 13/16" that screws in from the back/transmission side. My understanding is that the large 13/16" stud was for heavy duty applications such as Corvette, FI/2x4 pass cars and perhaps trucks. Until John Hinckley educated me didn't know the 365 bellhousing could come with the small 7/16" stud. Afterwards noticed some '57 365 bellhousings at swap meets with the small studs. Gary....
NCRS Texas Chapter
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Re: Need Bellhousing for a Late '56
The 57 parts manual indicates what Joe initially stated. The bellhousing for 56 Corvettes is also listed for 56 Chevrolets WITH A FOUR BARRELL or 2 x 4 BARRELL engines.3733365 bellhousing cast for 57 year model can be found with both the small 7/16" stud that screws in from the inside and the large 13/16" that screws in from the back/transmission side. My understanding is that the large 13/16" stud was for heavy duty applications such as Corvette, FI/2x4 pass cars and perhaps trucks. Until John Hinckley educated me didn't know the 365 bellhousing could come with the small 7/16" stud. Afterwards noticed some '57 365 bellhousings at swap meets with the small studs. Gary....
I am puzzled as to why this is. What is different about the 2 barrel manual trans engine bell housings?
In any event, it would appear that Brooks needs a 365 bellhousing from a 1 x 4 or 2 x 4 car (Corvette or passenger car).Comment
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Re: Need Bellhousing for a Late '56
Ed, your question is a good one. The bellhousing clutch pivot stud applications information is contained in Group 0.796 The 13/16" stud part # is 3729000 and 7/16" stud part # is 3836314 Go figure why Chevrolet didn't provide a footnote or better explanation in Group # 0.683 for bellhousing applications. Gary....NCRS Texas Chapter
https://www.ncrstexas.org/
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Re: Need Bellhousing for a Late '56
For '57, both passenger car and Corvette used the same casting number bellhousing (3733365), but that casting was machined differently for each application.
For passenger cars, the 365 casting was machined for the inside-installed 7/16"-20 ball stud (#3836314), and the finish-machined bellhousing carried P/N 3733365 (same as the casting number). This application used clutch fork P/N 3737454.
For Corvettes, the 365 casting was machined for the outside-installed 13/16"-16 ball stud (#3729000), and the finish-machined bellhousing carried P/N 3733369. This application used clutch fork P/N 3739043.Comment
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