Could someone please provide me with the GM part number for a '56 V8 245/225 oil pan? Thanks.
Garry Barnes
Garry Barnes
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Re: Need GM part number
Gary,
Part numbers are usually Joe Lucia's department but since his computer seems to have temporarily run amuck, I'll help out.
The correct original part number was 3736615 for all 1956 Corvettes. That number was replaced in the 60's or early 70's with part number 3794060. Both are discontinued.
I've heard there is some difference between the original 615 and it's 060 replacement but I don't remember what the difference was (dip stick location?)
Michael -
Re: Need GM part number
mike and gary: early desing orig equip pan located dipstick on the pass sie of the case. mid to late locted it on drivers side. pas cars, early that is, had pass side dipstick so boneyards best source for an early critter. mikeComment
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Re: Need GM part number
Mike and Mike, thanks for your comments. I know that the first 600 or so '56s had the dipstick on the passenger side. Mine is well into the production and has the dipstick on the drivers side. With that in mind, I wonder if what Micheal said about the change in part numbers designates that there is also a change in the pan design itself? Any thoughts on this? I have located a 3794060 and wonder if it will fit like the original first parted number.
Thanks.Comment
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Re: Need GM part number
I was hoping to find part numbers for 1st and 2nd design 56 oil pans in the 1963 printing of the parts book but only the later 2nd design 3736615 was shown. It lists it as being unique to 56 and also unique to Corvette. Also lists it as being a five quart pan but all pass car pans are listed as four quart so I assumed pass car pans were not interchangeable. Kinda tells ya how much I know about 53-62. (only rumors and fables) Here's what's in the 63 printing of the parts book.
56-57 All (8 cyl)......(4 quart capacity)................3735640
56 Corvette......... (5 quart cap)....................3736615
57-62 Corvette..........(5 quart cap)....................3789629
3736615 was replaced by 3789632 on 3/64
3789632 was replaced by 3794060 on 7/64.
I have to assume that the 3794060 was released aprox early 64 as a replacement and was never an assembly line part or part number for an original 56 corvette. The number is too high numerically to have been in existance in 1956.Comment
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Scan of 63 Parts Book
This is from a 1963 printing of the parts book. Hope it helps.
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Re: Need GM part number
Garry-----
For 1956 I believe that there were 2 different pan configurations. The early style pan used an oil pan-mounted dipstick tube on the right side. The later style pan used the block mounted dip stick tube (like later small blocks), with a "V-shaped extension" on the left side oil pan rail for dip stick clearance.
At the moment I can't tell you the full story regarding 1956 Corvette oil pans. However, as used in PRODUCTION, there were 2 distinctly different pans---one that had the dipstick tube recepticle welded to the right side of the pan (just like later big block pans) and the other which lacked this feature. Both pans had the "V-shaped extension" for the left side dipstick. However, for the early cars with the pan-mounted dipstick tube the block hole for the dipstick tube was plugged or undrilled and the "V-shaped extension" didn't have any function other than to match the oil pan rail to the block rail configuration for sealing purposes.
There have been a whole string of oil pans for 1956 Corvette applications. The first was GM #3727732. Later came GM #3736615. Later yet came GM #3789632. After that, GM #3794060 and, finally, GM #360867. I don't know if ANY of these pans, including the original SERVICE pan GM #3727732, were exactly like the original PRODUCTION pans used on 1956 Corvettes. I strongly suspect that all of these pans were multi-use pans that served BOTH the right and left hand dipstick applications. For left hand dipstick applications, the pan-mounted right side dipstick recepticle had to be plugged or sealed off in some manner.
I can tell you this, for sure, regarding the GM #3794060. Although it became the 1956 Corvette SERVICE pan in 1964 when the 3789632 was discontinued, the 3794060 was released in 1962 for some truck application. This pan has the right side, welded-on dipstick tube recepticle used for early 1956 Corvette applications (and, perhaps, other applications, too). So, if used for your left side dipstick tube application, this would need to be crimped or sealed off in some way. Also, the 3794060 pan has a flange welded to the right side of the oil pan just forward of the dipstick tube recepticle. This flange has an NPT fitting which is plugged with a pipe plug. The fitting is for the truck application which this pan also SERVICES. While the GM #3794060 will SERVICE your application perfectly from a functional perspective, the pan-mounted dipstick tube provisions and the welded-on flange would not be correct, at all, for your car. Otherwise, I think that the general configuration of this pan and the original 1956 pan used on your car are the same.In Appreciation of John HinckleyComment
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Re: Scan of 63 Parts Book
Joe and Micheal,
You answered my question and more! Thanks a bunch. The search continues.
GarryComment
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Re: Scan of 63 Parts Book
Sorry...MichAEl. I always do that. Joe, can we assume that you computer is fixed? For our sakes, I hope so!! Thanks again guys.
GarryComment
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Re: Scan of 63 Parts Book
Garry------
No, I still haven't set up my new computer. The old one still works ok for posting, though. I just can't send any e-mail or reply to e-mails.In Appreciation of John HinckleyComment
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Re: Need GM part number
My book agrees with Joe Lucia. It is a Chevrolet parts & accessories catalog effective April 1, 1956 and it lists under grp 1.426 PAN, OIL, with Drain Screw
CORV., & D-D, Util. 8 cyl ...(18 holes - w/baffle)...3727732 price $16.50
I am thinking why there is only 1 pan listed is at the time of printing of this book GM had not changed over from the RH dipstick but I could be wrong since I looked up the exhaust manifolds under GRP 3.601 and this book does list the "early" 2 bolt rams head under part 3725563 and the later 3 bolt rams head ones under part 3731557 & 3734080.
Jim BlakelyComment
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Re: Need GM part number
Jim-----
I kind of expect that the 3727732 pan was a SERVICE-only piece with provisions for BOTH dipstick styles used for 1956. I don't know that, for sure, though. The only way to know, for sure, would be to have the GM drawings for the 3727732 pan OR have an in-the-box NOS GM #3727732 oil pan. Finding one of those could be tough. I doubt that even ol' J.T. has one.In Appreciation of John HinckleyComment
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Re: Need GM part number
All:
For a look at a 1956 NOS Oil Pan #3794060, see ebay item #4504032943.
As usual Joe's decription is right-on.
Gary
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