Anyone have an original 69 L/78 with THM400 ?

nuch_ss396 · #1 12-05-2005, 05:19 AM

Hi everyone,

I recently came across what was touted to be an original
idle stop solenoid and bracket assembly for a 1969 big
block ( L/78 ). Problem is that this assembly has a
strange additional bracket on the solenoid itself ( very
hard to put into words ). The owner swears it is all
original and a one-time take off.

Does anyone here have an original L/78 Camaro, Chevelle,
or Nova with a THM400 that they can take a few pictures of
the idle stop solenoid, bracketry, etc. for me? I'd like
to see exactly what an original assembly looked like.

While on this subject, was there a special paddle or
extension on the throttle arm where the idle stop solenoid
plunger mated up against? This is one of those little
details that I get lots of disenting opinions on....

Thanks,
Steve

**Alss** · #2 12-05-2005, 05:32 AM

here's one, from George's COPO

Belair62 · #3 12-05-2005, 05:38 AM

Nuch thats what mine looks like too...what extra pieces does the one you are looking at have ? have pics to post ?

nuch_ss396 · #4 12-05-2005, 05:57 AM

[ QUOTE ]
Nuch thats what mine looks like too...what extra pieces does the one you are looking at have ? have pics to post ?

[/ QUOTE ]

Thanks for the fast replies guys! Mine looks like this also. However, I have been told that the carb's throttle
arm would have had a provision on it ( like a bent tab )
where the solenoid's plunger would ride up against. This
would eliminate the possibility of the plunger getting
wedged and keeping the throttle open unexpectedly.

I'm gonna try to upload an image or five shortly.

Steve

nuch_ss396 · #5 12-05-2005, 05:59 AM

[ QUOTE ]
here's one, from George's COPO

[/ QUOTE ]

Are these the original idle stop solenoid components, or
NOS or similar items? Just like to know.

Steve

nuch_ss396 · #6 12-05-2005, 11:40 PM

[ QUOTE ]
Nuch thats what mine looks like too...what extra pieces does the one you are looking at have ? have pics to post ?

[/ QUOTE ]

Here is an image of the solenoid & bracketry I mentioned:
http://www.freewebs.com/nuch_ss396/69_1.jpg

**firstgenaddict** · #7 12-06-2005, 12:03 AM

Looks right to me.

**Mr70** · #8 12-06-2005, 01:46 AM

Doesn't M&H make that solenoid today,or at one time?
I could swear I saw those on the market within the last 10 at a Chevy Show.

nuch_ss396 · #9 12-07-2005, 03:44 AM

[ QUOTE ]
Looks right to me.

[/ QUOTE ]

James,
Look at the solenoid itself and the bracket that is
attached to it. I've never seen one like that before.
I wonder if the solenoid was an addition from another car
that somehow ended up with this setup. I remember swapping
parts like that back in the mid 1970's because that was all
we had. Any thoughts on the authenticity of this additional
bracket on the solenoid?

Steve

nuch_ss396 · #10 12-07-2005, 03:52 AM

[ QUOTE ]
here's one, from George's COPO

[/ QUOTE ]

Albert,

Any chance you can get me a closer image of the throttle
arm on the Holley? I'd like to see if the arm has a special
provision ( bent tab ) that mates up against the solenoid
plunger. I was informed today that Holley equipped L/78's
with THM400's used a special throttle arm. Does anyone
have any input on this topic? Obviously, a good look at a
survivor car would confirm this.

Steve

Dedicated to the Promotion and Preservation of American Muscle Cars, Dealer built Supercars and COPO cars.