1970 454 fan shroud.

[Kenneth B.]

My 70 454 with AC has a gray plastic fan shroud with no part # in the left hand corner like the black ones. I took a full dudct for a totaly incorect one at the AZ regionals this year. I saw a guy looking for the same shroud on CF with a picture of one on a AC 454 that looked just like mine. New NCRS guide has a one line sentence that said a few 70"S had a gray shroud but did not list a part #. Is there one somewhere on it. Not where I can look at my Corvette now. My VIN # is7601.
THANKS KEN

[Patrick H.]

Re: 1970 454 fan shroud.

You're correct - the JG does not specifically note whether or not there is still a part number on the gray shroud.

I would have thought that you'd at least get partial points for the gray one, not a full, without a part number.

[Rick N.]

Re: 1970 454 fan shroud.

The part # is 3974015 and it is in the very same location as every other 3974015 fan shroud that followed the light grey shroud.
On the bottom right hand side.
All LS5's had this shroud in the beginning of the 1970 model year.
Both A/C and non A/C
Then non A/C cars switched over to the 119 shroud. ( I don't know what month this changed).
A/C cars continued with the light grey shroud until the marblized version started and continued through 1972. ( I don't know exactly what month this change took place either).


You were judged incorrectly.
The light grey shroud is correct.

[Kenneth B.]

Re: 1970 454 fan shroud.

The part # is 3974015 and it is in the very same location as every other 3974015 fan shroud that followed the light grey shroud.
On the bottom right hand side.
All LS5's had this shroud in the beginning of the 1970 model year.
Both A/C and non A/C
Then non A/C cars switched over to the 119 shroud. ( I don't know what month this changed).
A/C cars continued with the light grey shroud until the marblized version started and continued through 1972. ( I don't know exactly what month this change took place either).


You were judged incorrectly.
The light grey shroud is correct.

THANKS for your help.

[Gary B.]

Re: 1970 454 fan shroud.

At the national this year in Hot Vegas, SN 10,867 had a gray fan shroud. Not sure how the chassis team judged it, maybe Shannon will see the post and chime in.

Rick, if your sure of your info, I'll add it to the 7072 TIM&JG.

Gary Bosselman

[Rick N.]

Re: 1970 454 fan shroud.

Hi Gary,
I'm sure of the part number and location.

I have been researching this shroud for a couple years now.
So far from what I can tell the A/C cars used it longer then the non A/C cars.


I've never seen this shroud in a (10,xxx vin) before.
Kens car (7601 vin) is the tail end from what I have observed with A/C.

I thought NON A/C ended around the end of January and maybe beginning of February until I seen a top flight with a (6000 vin) have one.
I'm skeptical about that late of a build date because I've seen the 119's earlier then that but who knows if they are original.

So many of these shrouds have been broken and/or replaced.
Lower extensions missing, etc.

Hopefully others with this shroud will chime in and offer their build numbers.

Rick

[Rick N.]

Re: 1970 454 fan shroud.

At the national this year in Hot Vegas, SN 10,867 had a gray fan shroud.

Gary Bosselman

As luck would have it, I just stumbled across an original owner non a/c car with vin # 11,310 and it has a light grey fan shroud.

Now it appears these shrouds were installed intermittently as they were being discontinued?

[Rick N.]

Re: 1970 454 fan shroud.

My 70 454 with AC has a gray plastic fan shroud with no part # in the left hand corner like the black ones. I took a full dudct for a totaly incorect one at the AZ regionals this year. I saw a guy looking for the same shroud on CF with a picture of one on a AC 454 that looked just like mine. New NCRS guide has a one line sentence that said a few 70"S had a gray shroud but did not list a part #. Is there one somewhere on it. Not where I can look at my Corvette now. My VIN # is7601.
THANKS KEN

I found a picture of your car you posted a couple years ago on Corvette forum.
It's hard for me to tell from the picture but it doesn't look to me that you have the light grey shroud.
Maybe that's why you were deducted on your judging sheets?

This is the light grey shroud.

[Rick N.]

Re: 1970 454 fan shroud.

My 70 454 with AC has a gray plastic fan shroud with no part # in the left hand corner like the black ones. I took a full dudct for a totaly incorect one at the AZ regionals this year. I saw a guy looking for the same shroud on CF with a picture of one on a AC 454 that looked just like mine. New NCRS guide has a one line sentence that said a few 70"S had a gray shroud but did not list a part #. Is there one somewhere on it. Not where I can look at my Corvette now. My VIN # is7601.
THANKS KEN

Is this yours?

[Mathew S.]

Re: 1970 454 fan shroud.

My 70 LS5 Air car has this one. VIN is in the 15,8xx range, if that helps. There was a part number on it, but couldn’t find it again (too dang hot in Texas). The coloring reminds me of the one on our 70 LT-1 (VIN 80xx).

[Allen N.]

Re: 1970 454 fan shroud.

I have a BB convertible with no A/C built Feb 4, 1970, with 2,664 serial no. It has the 3974015 fan shroud with the darker grey color. From what I am reading above, this fan shroud should pass NCRS judging although the Judging Guide says this part number is for an A/C car. Here are some pics.

[Rick N.]

Re: 1970 454 fan shroud.

I have a BB convertible with no A/C built Feb 4, 1970, with 2,664 serial no. It has the 3974015 fan shroud with the darker grey color. From what I am reading above, this fan shroud should pass NCRS judging although the Judging Guide says this part number is for an A/C car. Here are some pics.

You're mis-interpreting what has already been mentioned in this thread.

[Allen N.]

Re: 1970 454 fan shroud.

You're mis-interpreting what has already been mentioned in this thread.

Please straighten me out. I admit that I am confused.

My main question is whether or not the fan shroud I have pictured above is correct for my car or not.

[Rick N.]

Re: 1970 454 fan shroud.

You would need the 119 shroud OR the light grey 4015 shroud.

We have been discussing at what time in the 70 model year did the light grey shroud stop being used in non A/C cars and the dark grey 119 begin.

Early January cars had the light grey shroud.
Not sure yet about February and later.

I have a January 27 build date and don't know for sure yet what I'm supposed to have.

[Allen N.]

Re: 1970 454 fan shroud.

The top left 119 shrouds seem to have UCC in a hexagon which I assume is for the manufacturer. Do the bottom right 4015 light grey shrouds have UCC in a hexagon or something else? My Feb 4th car has a black plastic shroud with J in a hexagon. I do not know if my shroud is original or not.