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OK, so I know nothing about 914 gauges other than that they're pretty big (I think they're bigger than 356 gauges, or at least the same size, but what the hell do I know??)

What I have in hand is a 912T gauge set and can actually measure those puppies and here's what I found:

All three gauges are mechanically the same:

The gauge can is 3-7/8" dia. while the rubber bezel is a tapered affair that starts at about 4" dia. on the slim (inside) end and varies out to about 4-1/8" where it meets the dash hole. The lip of the bezel extends another 1/8" to become a lip into the dash gauge hood, which accepts all three gauges as a unit. This (admittedly, el-cheapo) bezel takes the place of the nice, chrome bezel on the 356 and the black trim ring on the 914. It is a slip-on from the cockpit side of the gauge. Removing the bezel leaves a naked, ugly-looking gauge/can with nothing to keep it anchored to the dash. There are places where anchor posts could be installed on the back of the gauges, but they relied, instead, on a pressure fit of the el-cheapo bezel into the tapered gauge hole in the gauge cluster mounting plastic hood with an alignment tooth in the bezel to keep them straight. This was the el-cheapo 1970's, remember??

As a post-script, I'm using 912T gauges on my current build to overcome the problem of small-ish steering wheel versus big gauges and then having the wheel cut off some of the gauge. With a bit smaller gauges I can fit them inside of the diameter of the wheel and actually see everything on the gauges. Yes, I know this wasn't a problem with original Speedsters because they had those HUGE steering wheels, but they're not for me....
Here's a couple of pics of 914 and 912 and small Audi gauges set into a Pre-A 356 dash, they fit nicely. I used the rubber gasket ring from the stock 356 gauges to seat them against the metal dash, but you could cut down the 914 rubber collars to do the same thing. Gives a nice finished look to the installation.

Over-all, Porsche fits Porsche, with a bit of swapping in and out.

If you look at the Emory web site or images of his cars that come up for sale, you notice that he almost always uses a combination of different year/model gauges in his 356 Outlaws.


It's a starter button with plate and rubber capped screw-on cover (rather than just a bezel/collar) from an old Power Wagon Army truck that was in the scrap yard last year. It's a perfect fit for the Pre-A dash, right down to the clipped top where it tucks under the main dash area. The Power Wagon had a similar center section for the multiple gauge cluster/plate that the button fit beneath it.

I have a huge collection of cool old switches and instruction plates and handles and knobs such that I've collected from Army trucks and old semi rigs and bulldozers and such that have come through the yard over the years. Neat ignition off/off and starter button and PTO kinda stuff along with loads of aluminum instruction/warning plates.

Sometimes they're perfect for a rat or street ride, but mostly they would be wonderful for a full tilt race car put to high speed highway use.

The original stuff from old "industry" is just a whole lot cooler than the crap from PepBoys or the new $hit offered by Speedway or Summit, you know? I have a plate with instructions for turning on the vacuum windshield wipers with wording that's insane. Five lines long, and all you really have to do is flip the lever to the left. I got the switches and levers as well, from both sides of the cabin. Just neat stuff ! ! ! !
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