Yenko Deuce question - Chevy Nova Forum
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Old 24th-January-2008, 11:20 AM   #1
L79Fan
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Question Yenko Deuce question

Something that seems like it should have an obvious answer but I just don't remember
Were most of the Yenkos built off of SS cars? All of them? Some of them? None of them? 1970 is the particular year in question if that matters.
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Old 24th-January-2008, 12:20 PM   #2
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My buddy has a citrus green 70, it's bare bones
a rubber floor mat car with no ss badging or
markings. LT1, M21 Muncie and a 12 bolt.

Tom




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Old 24th-January-2008, 12:46 PM   #3
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All of the Yenko Deuce Novas were non-SS cars. These cars were double COPO cars, ie; they received the LT1 from the Z28s (360HP) via COPO #9010, and other items via COPO #9737 (F41 option for eg.) Some of these 'other' items were specified only for SS models (F41 for eg.) and that's where a lot of people get crossed up.

The production of the Yenko Deuce Nova was 175 total. They came in both 4 speeds (122) and TH400 (53), and in 8 colors as follows (in production order):

Cortez Silver - 25
Gobi Beige - 25
Forest Green - 25
Fathom Blue - 35
Cranberry Red - 35
Huggar Orange - 10
Sunflower Yellow - 10
Citrus Green - 10

All of the Yenko 427 Novas ('69 models) were SS396, L78 models. There were approx. 37 of them produced, but not all received a 427 transplant. They were all 4 speeds, (one a/t was produced, but the notation is that it 'didn't work'). They came in 4 colors, but the # of each color is not known:

Garnet Red
Lemans Blue
Rally Green
Fathom Green

One later conversion car has been found, exceptionally optioned including a special paint code. Look for this car to debut this summer.

M

BTW, that's a nice Citrus Deuce!
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Old 24th-January-2008, 02:33 PM   #4
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Thanks for all of the info.

Tom
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Old 25th-January-2008, 11:28 PM   #5
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Many thanks!

Thanks from me for all of the info too! Anyone know how they did block/vin numbers on the transplanted engines? Did they match the car vin? I'm thinking that they might have only on the '69's that retained their original 396's.
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Old 26th-January-2008, 09:17 AM   #6
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Not sure on the VIN's,but here's a pic of a 69 BB Yenko in Canada.



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Old 26th-January-2008, 10:14 AM   #7
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The blocks were CE. No vin match to the car. The jury is still out on how many were transplanted. It was once thought maybe as high as 33-34 of the 37. I think all those nbrs are up for grabs, and the nbr of conversions may be much fewer than originally thought.
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Old 26th-January-2008, 10:39 AM   #8
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Question Small block vin's?

What about the small block cars? You'd think that they would have matched block vin's since they were copo order right from the factory.
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Old 26th-January-2008, 11:30 AM   #9
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Quote:
Originally Posted by L79Fan View Post
What about the small block cars? You'd think that they would have matched block vin's since they were copo order right from the factory.

They do. The 1970 Yenko Deuce's with factory original LT1's had the VIN on there.


Allen (still wishin' for a '70 Deuce)
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Old 26th-January-2008, 12:17 PM   #10
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How can you tell a real Yenko from a clone?
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Old 26th-January-2008, 05:22 PM   #11
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There are no absolutes, but deuces were all equiped with F41. Even if the drive line is gone, the sway bar hangers should still be welded on. There is also a list of most (not all) deuce vins posted on Yenko.net
The 69s are much harder. There are a few vins known, but owner history is probably the best method on them. Never say never, but be very careful. Some that were thought to be 427 conversions have turned out not to be, and there's a great deal of difference between the two price wise.
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Old 26th-January-2008, 06:19 PM   #12
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Quote:
Originally Posted by Schonyenko2 View Post
There are no absolutes, but deuces were all equiped with F41. Even if the drive line is gone, the sway bar hangers should still be welded on. There is also a list of most (not all) deuce vins posted on Yenko.net
The 69s are much harder. There are a few vins known, but owner history is probably the best method on them. Never say never, but be very careful. Some that were thought to be 427 conversions have turned out not to be, and there's a great deal of difference between the two price wise.
That's good to know,I wasn't sure how you guys ever new what was what with them.This also explains the value of paper work.Atleast SS's if reasonably original I can be 98% sure it is real.I always thought they had record of all the Yenkos.Do any members here have a 69 Yenko?

Thanks,Paul
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Old 26th-January-2008, 11:29 PM   #13
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F41

[QUOTE=YENKO DEUCE REG;746814]All of the Yenko Deuce Novas were non-SS cars. These cars were double COPO cars, ie; they received the LT1 from the Z28s (360HP) via COPO #9010, and other items via COPO #9737 (F41 option for eg.) Some of these 'other' items were specified only for SS models (F41 for eg.) and that's where a lot of people get crossed up.

Without looking, isn't the F41 a suspension upgrade? It is on Chevelle. Which I believe is standard on the SS option. So the COPO number for that is 9737? But I think that your eg. abbreviation is causing me a bit of confusion. Did you mean "for example"?
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Old 26th-January-2008, 11:54 PM   #14
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I believe Tom Clary, SYC ,is a member here, and he has a Lemans blue 69.
To try to clarify Marlin's statement, on a 70 early build you did not get F41 suspension. F41 wasn't available until around mid year production.(mid Jan). It was an upgrade.
No non SS novas we able to order F41 suspension packages. Therefore they had to be special ordered (COPO) 9737.
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Old 27th-January-2008, 01:42 AM   #15
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Quote:
Originally Posted by Schonyenko2 View Post
I believe Tom Clary, SYC ,is a member here, and he has a Lemans blue 69.
To try to clarify Marlin's statement, on a 70 early build you did not get F41 suspension. F41 wasn't available until around mid year production.(mid Jan). It was an upgrade.
No non SS novas we able to order F41 suspension packages. Therefore they had to be special ordered (COPO) 9737.
Ok, might be a stupid question, probably been answered a hundred times on here, but are you saying that the F41 wasn't available till
mid 1970? The docs I received from GM Canada for my 69 show that my car was a F41 car. I understood the difference to be the 69 cars did not have a rear sway bar. Hope I am not making someone repeat themselves. Tony.
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