Correct 58 oil pan

[Tom D.]

1960 - First Trap Door Oil Pan

Note the area around the drain plug in this photo. This is the outside shape of the 1960 Corvette Trap Door (Mech. Lifters = "Hi Perf") Oil Pan. I believe the lower HP 283's used a pan similar in shape, but without the trap door.

/td

[Tom D.]

Re: Correct 58 oil pan

David: I would love to see a shot of the drain plug area. See the 1960 "Hi-Perf" version I posted today.

THANKS!
td

[David S.]

Re: Correct 58 oil pan

Tom this is the best I can do on the drain plug for now. I had these on the computer. I am leaving early Wed for the Florida Regional and will not be back until the 30th.
Let me know what you think.
Dave

[Ted S.]

Re: Correct 58 oil pan

I'd like to quote 3 lines from the March 1, 1957 Parts Book, Group 1.426, page 185:

"57 ALL (8 cyl.)(exc. Ser. 6)..................................3735640
57 CORV.,
57 Ser. 6 (8 cyl.).....w/pin (18 holes, 4 marked B)....3736615"

3735640 and 3735642 are eerily close. Now I've checked a March 1, 1958 parts book and it is still 3735640, so I guess it's time to determine the source of 3735642 and see if it is a "typo". If it turns out that it should indeed be 3735640, it might be time to check judging sheets and find out how many people lost points on an interpretation that seems to be 180 degrees out of phase.

Loren, from your article you indicated that the 3736615 shows up in 3 years of parts books for Corvette. So are you thinking that there are two typos - one for 3735640 vs. 3735642 and the second showing the 3736615 verses either the 3735640/642 being correct for Corvette?

Thanks, Ted

[Loren L.]

Re: Correct 58 oil pan

Loren, from your article you indicated that the 3736615 shows up in 3 years of parts books for Corvette. So are you thinking that there are two typos - one for 3735640 vs. 3735642 and the second showing the 3736615 verses either the 3735640/642 being correct for Corvette?

Thanks, Ted

If you read the quote, the parts book shows 3735640 as the pan for ALL CHEVROLET V8S EXCEPT THE 57 CORVETTE AND THE SERIES 6 TRUCK WHICH USE 3736615. Or do you read it differently?

[Loren L.]

Re: Correct 58 oil pan

The pictured pan is off a passenger car. The Corvette pan should have three smooth steps, not indented like the one in your photo. The correct '58 pan will have two ribs on the sides; one long, one short.

And this is based on..........?

[Loren L.]

Re: Correct 58 oil pan

Loren, from your article you indicated that the 3736615 shows up in 3 years of parts books for Corvette. So are you thinking that there are two typos - one for 3735640 vs. 3735642 and the second showing the 3736615 verses either the 3735640/642 being correct for Corvette?

Thanks, Ted

I guess I'm missing something or you're seeing something that isn't there. Read the three lines again. The first entry (640 & maybe 642?) indicates the pan for all passenger cars and trucks except series 6 trucks. The second entry covers 1957 Corvette and series 6 trucks - the result being a direct opposite of Mr. Chestnut's theory unless pan #642 turns out to be a third pan and not a typo. Nowhere that I read refers even to the possibility of typo #2 - that is confined to 640/642 and only Mr. Chestnut knows the source of his identification of "642".

[Ted S.]

Re: Correct 58 oil pan

I guess I'm missing something or you're seeing something that isn't there. Read the three lines again. The first entry (640 & maybe 642?) indicates the pan for all passenger cars and trucks except series 6 trucks. The second entry covers 1957 Corvette and series 6 trucks - the result being a direct opposite of Mr. Chestnut's theory unless pan #642 turns out to be a third pan and not a typo. Nowhere that I read refers even to the possibility of typo #2 - that is confined to 640/642 and only Mr. Chestnut knows the source of his identification of "642".

Loren, I'm reading the parts book the same way you are. The first "typo" would potentially be the 640 verses 642 and the second would be are they actually reversed. In other words is the 640/possibly 642 pan for the Corvette and 6 series and the 3736615 for passenger cars?

The original picture from Steven was of a 3736615 as shown in your article in On Solid Ground and most responses are saying it's the passenger car pan.

I'm trying to get this one straightened out for my '58. It has the same 3736615 pan as shown in Steven and your article. At chapter - 0 points deduct, regional - 2 points on originality, national - 0 points. I went to the national before the regional.

Steven's pic

[Loren L.]

Re: Correct 58 oil pan

I just realized that Gary Chestnut is probably in Florida for the meet; does anyone else know the source of the two illustrations in his Post #10?

[Ian G.]

Re: Correct 58 oil pan

I think Roy Braatz said he gave the blueprint to Gary and that he got them from Noland Adams in his post #9, unless I'm misreading that.

[Roy B.]

Re: Correct 58 oil pan

I think Roy Braatz said he gave the blueprint to Gary and that he got them from Noland Adams in his post #9, unless I'm misreading that.

No I have many blue prints I post, the oil pan blue prints I did here a while ago ,and some people like Gary SAVE them many others dint

[Loren L.]

Re: Correct 58 oil pan

Gary ,I posted that blue print on NCRS quite a while ago along with all C1's oil pans , got them from Noland many years ago to help end the confusion, and what your saying a dead ON! Glade to see some people copy my postings to keep. Also 15 years ago I put it in SACE mag. for our members Best ROY

Then WHERE DOES THE MYSTERY PART # COME FROM? All the way into 1962 parts books, "640" is the last 3 digits of the 57 psgr oil pan.
Is the question where does the "642" number on apparently your posting come from???????

[Ian G.]

Re: Correct 58 oil pan

Hey Loren,

The real question for me is are you still standing behind the picture in your article of the 3736615 pan as a correct original pan for 57-59 corvettes? I have that pan for my early 59 (dec 58) in my garage paid for and most everyone is saying it is a passenger pan. So if you are standing behind those pictures, how do you know for certain that pan was used on the 57-59 corvettes? I haven't seen a post yet of someone with a bowtie car with that pan for those years I don't mean to make you look bad, or challenge you, I just want to know if I have the right pan or not...

[Loren L.]

Re: Correct 58 oil pan

Rod, previously posted the blueprint to show the drawing of what a '57-8 oil pan should look like along with an original oil pan photo. The blueprint no. I believe is a Flint part no., as it came from a GM retiree. Sorry, if the blueprint part no. caused any confusion. Noland Adams C1 book has the following good photos; 57 oil pan on page 126, 58 oil pan on page 222 & 223. The photo Steven posted in the very first post is a passenger car oil pan photo. Gary....

I have three copies of Noland's book and anyone who says they can see pan detail on the picture on page 126 should volunteer for the space program.
The pictures on pgs 222 and 223 are of a 1958 and a 1960 WHICH WE KNOW TO BE DIFFERENT PANS. THE FACT THAT YOU CANNOT SEE ANY DIFFERENCES IN THE TWO PANS would seem to indicate that the FLASH overpowered the detail in these areas.
Did the "642" that NO ONE ELSE can seem to find come from Noland via Roy or from the now mysterious retiree? I note that you deleted that picture from your repeat display.

[Roy B.]

Re: Correct 58 oil pan

I posted prints for all C1 oil pans ,number sorry that don't concern me and I don't know your answer , that's the number on the print. I'm concerned about a parts design if you followed my postings . The reason I don't bother with numbers like most people do is that to many people go by numbers thinking when buying they will get the right part (NOT) always , that's why I'm into design or a better word to use (what it should look like) . Over and over I've seen people lose money going by the part number and never looking at what the part should look like. Numbers were changed many times over the years on the same part.
I posted the original print of what the oil pan LOOKS like you guys can argue over numbers, (that's why people have the wrong oil pans , water pumps, Carbs and on and on).