Hi all, I have a new '67 fuel door assembly in a GM box with part number 3874528 on the box. The number on the main frame, under the hinge is 38144041 followed by 30181-H. I could not find either of these numbers in my '53-'82 parts catalog. Please help. BTY, this has the "all thread" adjusting screw that is being discussed on another post. I also have a set of chrome sb valve covers in the GM boxes that have part number 3767493 on the boxes. Again, I cannot find this number? Please help me properly identify these pieces. Thanks, G.
-
-
Re: '67 fuel door and '68 sb valve covers #'s???
The numbers you show on the gas door hinge boss are the same as those on the original gas door on my '67 (which also has the center dimple and fully-threaded screw for the catch) - they're casting numbers for the outer frame portion of the door assembly; the assembly-line parts were received already painted body color from the supplier, under ten different finished part numbers, which is why the door assembly is called out as "door asm. chart", P/N 3897371, in the assembly manual. That's the GM drawing number for the base part, which also shows the finished assembly part numbers for the ten body-color-painted assemblies. The 3874528 part number on the box is most likely the part number for the service part, which I believe was furnished in prime, to be masked and painted to match the car. -
Re: '67 fuel door and '68 sb valve covers #'s???
George----
The GM #3874528 fuel door assembly is actually the 1966 Corvette fuel door assembly. It was sold in SERVICE for many years for all 1963-67 Corvettes after the original door assemblies were discontinued. The original 1967 fuel door assembly was only available in SERVICE for a VERY short period of time and then replaced, for SERVICE, by the 3874528. I expect that the requirement to "paint-to-match" for the 67 door made customers requiring replacement "unhappy". So, GM replaced the 67 door, for SERVICE, with the 66 door which didn't require painting.
I cannot find a specific application reference for the GM #3767493 valve covers. However, I do find that they were discontinued on July 1, 1959 and replaced by the GM #3772669. The GM #3772669 are the late 1959 style small block ALUMINUM valve covers with 7 ribs and late-59+ style bolt pattern. The GM #3763463 would have been a later 1958 or 1959 released part. So, I have to conclude that the 3763643 was an earlier version of the late 1959 aluminum valve cover. If they were chrome, then it was a "still born" part; as far as I know, no 1959 Corvette was ever manufactured with chrome valve covers.
As far as chrome valve covers go, only 2 Corvette small blocks ever used them. The first was all 1955 with V-8. These covers have the "off-set" bolt pattern and "Chevrolet" script.
The second was 1968 with L-79. These have the "symetrical" bolt pattern used for late 1959+. They have no script and have a hole for the PCV system.
Since the valve covers you have were released sometime in 1958 or 1959, they could't be the 1955 covers. Since they were discontinued in July, 1959, they couldn't be the 1968 covers. So, what they are remains a mystery.In Appreciation of John HinckleyComment
-
Re: '67 fuel door and '68 sb valve covers #'s???
George and Joe,
The valve cover part number, 3767493, is for the mid 59 through 67 cast aluminum seven rib cover. It first became available in about 1958 and was replaced shortly after with the 3772669. The 669 was identical to the 493 but the box for the 669 also contained two head bolts, which changed the part number of the package. (long story) Both part numbers would have had the same casting number valve cover in the box.
Some time in the early or mid 70's, the 669 with the additional head bolts was dropped and the original 3767493 number reinstated and that number was available until probably some time in the late 80's or early 90's when it was discontinued.
Chrome valve covers would not have been correct for either number so I have to assume that the ones you have are either original aluminum covers that have been plated or something totally different and incorrect for the boxes.Comment
-
Re: '67 fuel door and '68 sb valve covers #'s???
I think the valve covers are for the '68 L79----how they got into these boxes is a mystery?? Thanks for the info on the fuel door.G.Comment
-
'67 fuel door ?
For 1967 were the fuel doors ALWAYS the color of the car or were BB cars the color of the stinger? B-J had a high price BB red car with a black stinger and a black gas tank cover.Comment
-
Re: '67 fuel door and '68 sb valve covers #'s???
George-----
I suppose it's possible that someone replaced a set of the chromed valve covers with a set of the Corvette aluminum valve covers. Then, the "take-offs" were placed in the boxes. I've done exactly that with some valve covers over the years.
However, the 59-67 Corvette valve covers are not a direct replacement for the 68 L-79 valve covers. The 59-67 Corvette aluminum valve covers have no provisions for the valve cover-mounted PCV system which 1968 Corvettes require for crankcase ventillation. They can be used, but significant modifications are required.
Also, the 1968 Corvette L-79 valve covers, GM #3923226, were used for other applications. Those applications included 1968 Camaro Z-28 and 1968 Chevelle and Chevy II with L-79. These valve covers were used ONLY for the 1968 model year, though. They have NO oil filler and they DO HAVE the hole and internal baffle for the PCV system.
For 1967, chrome valve covers were also used for some small block applications, but not Corvette, of course. For 1967 the chrome small block valve covers were used for Camaro Z-28, Camaro SS 350, and Chevelle and Chevy II with L-79. These valve covers, GM #3903395, were very similar in configuration to the 1968 valve covers EXCEPT that they had no hole for the PCV system. The 1959-67 Corvette aluminum valve covers would be a direct retrofit for these valve covers---no modification, at all, would be required.
Do the chrome covers you have in these boxes have the hole/internal baffling for the PCV system?In Appreciation of John HinckleyComment
-
Re: '67 fuel door ?
Ralph-----
For 1967 I believe that the fuel door was always painted the body color and had nothing to do with the "stinger" color. The "stinger" color did not extend to the "rear deck" of the car although some owners did this as a "custom" touch. I can see no other reason that the fuel door would be painted "stinger" color on either coupes or convertibles.In Appreciation of John HinckleyComment
-
Re: '67 fuel door ?
Maybe if I paint my fuel door to match the stinger color I could get $115K for my car??Comment
-
'67 fuel door repainting
John,
If you were to repaint the body color on a 67 fuel door, would you mask it, or or disassemble it. Wondering about getting the paint around the trim ring edges. Would the lacquer just flow over the edges?
Planning ahead for a paint job.
Jerry FuccilloJerry Fuccillo
1967 327/300 Convertible since 1968Comment
-
Re: '67 fuel door repainting
Good question:
What is the restoration methods to restore a fuel door?
BillComment
-
Re: '67 fuel door and '68 sb valve covers #'s???
Joe, these covers do have the hole/internal baffing for the PVC system. I have another set that do not have the PVC provisions, so I imagine that they must be '67 genure?Comment
-
Re: '67 fuel door and '68 sb valve covers #'s???
George----
Yes, I believe that 1967 (non-Corvette, of course) was the only year that used the chrome valve covers of the configuration you described.In Appreciation of John HinckleyComment
-
Re: '67 fuel door repainting
Get liquid masking material at a hobby shop (model airplanes, etc.) to cover the emblem, and lots of nice sharp new #11 X-Acto blades to trim it with after it sets up
Don't take it apart - you'll have to drill out the spun-over "rivets" (which are actually tubular studs cast as part of the outer frame, just like those on the glove box door), and the only way to re-assemble it is with tiny screws, which are a dead giveaway.Comment
-
Re: '67 fuel door and '68 sb valve covers #'s???
Those chrome script valve covers (if they're original GM) are rare and VERY highly sought-after by '67-'68 Camaro Z/28 restorersComment
Comment