Tach
Post Fiend
Joined: May 2008
Posts: 7,641
Likes: 21
From: Poway, Ca.
I think the stock tachs for flatheads were cable driven off the distributor, and you had to have a specific distributor to have a tach.
But now you can get one in just about any style that is electric and will hook up to your coil on the distributor side and work great!
Here's some to choose from:
http://www.autometer.com/cat_gaugeseries.aspx
Here's mine mounted up on the Stereo Deck (made with bed planks and Polished SS Strips) It's just a cheezy 3 1/2" Sunpro but looks and works great - $30!
But now you can get one in just about any style that is electric and will hook up to your coil on the distributor side and work great!
Here's some to choose from:
http://www.autometer.com/cat_gaugeseries.aspx
Here's mine mounted up on the Stereo Deck (made with bed planks and Polished SS Strips) It's just a cheezy 3 1/2" Sunpro but looks and works great - $30!
Post Fiend
Joined: Mar 2007
Posts: 5,776
Likes: 2
From: springfield il
shift her the way i do my large cars { aka my work trucks , 6wheel to 18 } by ear . wouldnt know what a tach is. it wouldna be that other dial with numbers next to my speedo would it ??? thought it was a metric speedo .................................
Fleet Owner
Joined: Jul 2004
Posts: 27,283
Likes: 1,046
From: NM
If you look in the large hot rod supply house catalogs, AutoMeter and others make tachs with 0 - 6,000 ranges, but all are 12v. I don't know of any "factory" tach for any flathead. In the '60's Sun made a 6v "electronic" tach that was inaccurate and unreliable, they go for huge bucks now, whether they work or not. I had one back then and threw it away.
I've heard there are diesel tachs that have lower ranges, but they aren't ignition triggered, which might solve the 6v problem, maybe not. They run off a flywheel starter ring gear signal and have to be calibrated. I don't know why no one makes one more appropriate for flatties, since they are such a large market.
I've heard there are diesel tachs that have lower ranges, but they aren't ignition triggered, which might solve the 6v problem, maybe not. They run off a flywheel starter ring gear signal and have to be calibrated. I don't know why no one makes one more appropriate for flatties, since they are such a large market.
