Anyone have an original 69 L/78 with THM400 ?

[William]

Worthy of note is that not all SHP bb/TH400s used the solenoid set up. The best known example is the L89 car tested by Popular Hot Rodding April '69. There is a clear engine photo showing no solenoid. Super Stock also tested a automatic ZL1 [#5?] that did not have it. The solenoid seems to be a late production addition, do not know for sure.

[nuch_ss396]

[ QUOTE ]
Worthy of note is that not all SHP bb/TH400s used the solenoid set up. The best known example is the L89 car tested by Popular Hot Rodding April '69. There is a clear engine photo showing no solenoid. Super Stock also tested a automatic ZL1 [#5?] that did not have it. The solenoid seems to be a late production addition, do not know for sure.

[/ QUOTE ]

In your examples, what would constitute late production?

Now that you mention it, I do recall having a discussion
about this some time ago and what I recall ( now ) is that
not all L/78's w/THM400 got this solenoid. It was never
couched in the context of early vs. late production though.

Can anyone else verify this or comment further? There must
be some L/78 owners out there with survivor-like cars that
can shed some light. Would Chevelle vs. Camaro vs. Nova all
share this early vs. late production difference?

Steve

[Hotrodpaul]

I have a 70 Z28 TH400 with the Holley and Idle Solenoid. I can post some pics if needed.

Paul

[William]

The PHR L89 car still exists; L507xxx VIN.

When we were doing the ZL1 the solenoid question came up. The photos of #5 don't show one but by the time the car was tested it had been modified somewhat, had headers. There was a L72/TH400 COPO sold in Canada, an original owner car into the '90s that had the solenoid, N661xxx VIN.

That is what I know. We did not put one on the ZL1.