I have a working 8 grand tachometer that somehow found its way in my 70 Cougar with a 351 C and FMX. This is valuable to you Boss 302 people and anyone that wants a higher monitoring tack for their stick cars.
The price is $500, plus any shipping. Located in Calif., but easily shipped.
PM me if interested.
Thanks
When was your car built?
I’ve seen several of these Tachs in June, 1970 built XR7s.
Hi Viv-
This 8 grand tach is from my Feb 1970 Cougar Eliminator, OF91M540638. I sent yu a text, if you want to talk.
Chris
Still available for sale as of March 16, 2021.
My Eliminator was built on June 25 1970. It has a 351 4v it has the 8000 tach so it is not just the Boss 302s
True- the 8 grand tach found its way in many cars. But it is correct for a 302 Boss Eliminator. I will keep it for the Eliminator, if it doesn’t sell.
I have seen two of these tachs in Albuquerque 1970 XR7 cars, both built in June,1970.
One was in the 351C-4V 4sp (53K miles) car of which I was the 2nd owner - purchased from a co-worker.
The car was ordered with the competition suspension so I always thought the 8K tach was part of the option.
However, that notion was proven wrong when a customer brought me a 351C-2V XR7 automatic, with an 8K tach, for turn signal repair.
I also bought a June 1970 XR7 cluster with an 8K tach. I surmise that the subcontractor that assembled the clusters,
ran out of 6K tachs occasionally and substituted 8K tachs.
BTW: There were two companies that manufactured these tachs for Ford: Faria and Borg-Warner.
The Faria tachs can be identified by the needle stop post located at 0 RPM.
According to my local tachometer repair shop, Faria tachs fail often and are difficult to repair because of lack of parts.
The Borg-Warner 8K tach that I installed in my convertible, from a 1970 B302 Eliminator, still works fine after 33 years!
I had a Oct 69 built XR-7 that had a 8K tach in it. it was a 351W 2V powered Cougar. I never pulled the dash out to look for date codes. It may, have or may not have been factory installed.

This is the Cougar in action about 20 years ago.
I’ve been building 8K tachs for 67-70s for 16 years. They are the first tachs I sold. I wonder how many of the ‘factory’ tachs are indeed OEM…
I enjoy seeing cars with my tachs being sold on eBay with ‘rare’ 69-70 non XR7 tachs or ‘rare’ 67-68 8K tachs.
Years ago I had a discussion with a guy at Carlisle that insisted his 68 XR7 8000 RPM tach was a factory option.