'68 Intake Manifold 3937797 for Feb16 tag?
Checked the archives and couldn't find answer to the question of whether a 3937797 aluminum Winters/GM tripower intake will work date-wise on a 1968 roadster with Feb16/1968 trim tag. My car seems to be right in the middle of the production run for '68. The -7797 intake is often described as for later '68 through '69 model run. These intakes are expensive, so I want to get the right one and -9852 is really the one that is hard to find. Any help much appreciated.
-
-
Re: '68 Intake Manifold 3937797 for Feb16 tag?
What's the casting date on the manifold and the assembly date of the engine? Trim tag date is not really relevant as the manifold was installed in Tonawanda, not St. Louis. -
Re: '68 Intake Manifold 3937797 for Feb16 tag?
Casting date of intake not sure yet - but I know it's on the underside and is not a judging item, plus since I'm restoring the car and never going to advertise it as numbers matching or totally original I don't know if it is as important to my situation. What I want to know is whether the -7797 intake will work at all on a February 1968 car, whether it would be considered part number-to-model-year correct, which my feeling from some research is "no".Comment
-
Re: '68 Intake Manifold 3937797 for Feb16 tag?
Gary-----
While the casting date is obviously not judged, it could give you an idea if this manifold could have been originally installed on this car. Let's say the engine assembly date is January 15. If the manifold casting date were about that time or prior, then you've established that this manifold could have been originally installed on your engine regardless of what anyone says was the change-over date for the manifolds. If the casting date were March 15, then you've established that this particular manifold could not have been installed on your engine (but not necessarily that another manifold of the same casting number could not have been used).In Appreciation of John HinckleyComment
-
Re: '68 Intake Manifold 3937797 for Feb16 tag?
Gary the casting date of the manifold would give you a clue as to whether it was appropriate, or not. I suspect there is an oil shield on the underside, and even with the manifold in hand (which I assUme it is not), you might not be able to see the date.
Since there is some lag from engine assembly to body build -- and that lag can be variable -- going by the body build for engine parts is crude at best. That is why Mike asked for that additional information. Again, I will assUme the engine assembly date is not available.
Have some patience. I have some files at home which might help, but I have plans with my family this evening. Someone PMed me for pictures of my 1970 that are on the list for tomorrow, and if you read another thread here I will be prowling some Camaro forums also tomorrow.
I will get to your request as soon as I can.
TerryComment
-
Re: '68 Intake Manifold 3937797 for Feb16 tag?
Thanks All - NCRS membership & all the knowledgable members is the best thing in the world for a Corvette owner!Comment
-
Re: '68 Intake Manifold 3937797 for Feb16 tag?
Gary,
I probably don't have enough examples to do you much good. The only 7797 I find is September 1967 build, and I have two 9852s one March 1, 1968 and the other in July of 1968. I have no idea if these are restored or original Corvettes. They are what they are.TerryComment
-
Re: '68 Intake Manifold 3937797 for Feb16 tag?
Yes, exactly Terry, that's what I as trying to get at.
The hobby has an unfortunate habit of labelling part change overs as 'early' and 'late' which is taken frequently to be with respect to early or late in the particular model year. There's plenty of examples of part switching to the late version within the first weeks or month of model year production or conversely hanging on to the early version until the last month or so of production.Comment
-
Re: '68 Intake Manifold 3937797 for Feb16 tag?
my father was the orginal owner of my car engine T0II7IU trim plate G13 intake manifold 10-10-67 part # 3919852 I've found items on car that leads me to believe feb 13 68 would fall into the early catagory.Comment
-
Re: '68 Intake Manifold 3937797 - consensus
I think from the research I've done, all the replies here, sifting through the 68-69 NCRS judging guide, that the proper Winters tripower intake is indeed the 3919852. During this research it does seem that an early/mid February 1968 trim tag car is going to be full of "early" parts meaning late in '67 manufacturing date. I wouldn't be surprised if Holley, Rochester, Winters and other vendors loaded up production at year end to beef up their yearly billings which would lend creedence to my feelings on '67 parts being prevelent in a February car.Comment
-
Re: '68 Intake Manifold 3937797 for Feb16 tag?
At first glance, a middle February 1968 build seems early for a 797, but, if I had to make a decision on the judging field without any research data to help, I would most likely let it fly with no deduct. Not sure what my old judging partner, Farmer Whittington, would do.
If it were me and I hadn't yet bought an intake, I would research it as best I could and if a definitive break time between intakes couln't be determined, I would go for an 852 and stop any weeping, wailing and gnashing of teeth on the judging field before it begins.
I'm sure you'll make the right decision.KramdenComment
Comment