69 Mechanical to Electric Tach Conversion
Thread Starter
Instructor
Joined: Oct 2009
Posts: 180
Likes: 0
From: Lakefield Ontario
69 Mechanical to Electric Tach Conversion
Has anyone have a list of parts required to convert a mechanical tach to electric?
I've been thinking of installing a EFI system and need to convert the tach.
I have used the search function and haven't found what I was looking for.
Thanks as always everyone!
I've been thinking of installing a EFI system and need to convert the tach.
I have used the search function and haven't found what I was looking for.
Thanks as always everyone!
Team Owner
Joined: Jul 1999
Posts: 65,492
Likes: 230
From: Orange Park Florida
A stock tach from 75-77 vette will bolt in just fine, slight print variation but not so shabby.....
the wiring is obvious.....ground, +12 and tach input through a tach filter....which is easy to make if you can solder a wire, if not, I think someone tooled up to make them OEM style...
the wiring is obvious.....ground, +12 and tach input through a tach filter....which is easy to make if you can solder a wire, if not, I think someone tooled up to make them OEM style...
Race Director
Joined: Jul 2001
Posts: 15,892
Likes: 42
The lettering on your '69 gauge is greenish white, the electronic tachs as described have white lettering.
Since converting to HEI will not give you any performance boost, why bother? If you're tired of playing with points, convert your existing dist. to one of the electronic points replacement thingys and be done with it.
Since converting to HEI will not give you any performance boost, why bother? If you're tired of playing with points, convert your existing dist. to one of the electronic points replacement thingys and be done with it.
Melting Slicks
Joined: Sep 2004
Posts: 2,655
Likes: 19
The 75-77 tach is probably easiest, but they were expensive when I did my LS swap. I had an Isspro tach on my shelf that had the same sweep and even the same faceplate screw hole locations as my 68 tach. I pulled the guts out of the Isspro, swapped the 68 face on it and mounted it in the dash.
