I'm looking to install an analog oil pressure gauge to my A-Body. Any recommendations on brand and mounting locations?

I would like to install the gauge by bridging/bracing the gauge under the dash using existing hole(s).

In addition, what type of supply line are you using for your analog oil pressure gauge? Copper, nylon?

No problem with the under dash install but use copper line not the nylon.

Yes use copper & take care with the fittings as you dont want oil leaking onto your carpet. You might make a slight loop or bend on the eng side of the firewall side to allow for eng torqueing over time (to not work harden the copper). Might not be an issue but my OCD says it could be!

I've always used the nylon tubing and have never had a problem. The problem with copper is that over time it can crack due to vibration. That's why its not advisable to use copper for fuel lines like they used to do in the '50s on hot rods. If you follow the directions for the install the nylon tubing will work just fine.

Braided 4AN is a good alternative.

This or a -3 AN would be my preference as well. I use these pre-made lines on my brakes and like them a lot.

Under dash usually, and usually AutoMeter.
Copper lines on the ones I've installed are still fine 30+ years later; as said, allow for flex.
Only problem with braided stainless is it abrades whatever surfaces it rubs against unless covered with heat-shrink tubing. Otherwise excellent.
Aesthetically I like to have an added gauge fit the theme & interior styling of the car.

I am partial to Stewart Warner...You can get stainless lines that dont work harden like copper will. Tim

Don't use nylon, put some coils in the copper, just like brake lines have.

Get a gauge that has a full needle sweep around the gauge.

Don't get these with a 1/3 of a circle range of travel.

I think I (now) agree

I get using an analog gauge (with a needle and sweep) as opposed to digital.

But why do you want to use oil tubes of a mechanical gauge, when you can use a nice analog gauge with an electrical sending unit?

https://www.amazon.com/Auto-Meter-4327-Ultra-Lite-Electric/dp/B0009RSYCU

Never had an issue with the nylon tubing.

If the $$$ are burning a hole in your pocket GO WITH the braided... looks super trick ... but either copper or nylon ... whatever fits your fancy

Spaghetti tubing. Can't drag race with nylon at an NHRa track. It's a problem waiting to bite you. Use copper at least. Put a couple coils in it at the ends. Done deal.

NHRA mixed nylon how long ago ?

I've got a '67 b-body with an AutoGuage mechanical mounted on my dash @ my 2 o'clock, right next to the tach. Like to keep an eye on the numbers w/o having to look under the dash and taking eyes of the road. I used copper line with a coil, wrapped in a rubber hose to protect from vibration where it comes through the firewall. I installed it on the car 20 years ago when I got it running. I like analog b/c one time the idiot oil light winked on. Looked at the mechanical still had 40-45psi. Come to find out the wire on the electric sensor had worked loose. Just re-attached loose wire.

What is the problem with nylon tubing provided by the people who manufacture and sell these gauge kits? Strength? Durability? Reliability? It seems to me that a real problem that presents a safety issue--which hot motor oil spraying the interior of a car and the driver would surely be--would be a liability risk for the manufacturers.

I've never tried a test with copper tubing vs nylon tubing for mechanical properties, but I'll bet tensile strength, fatigue resistance, resistance to chemical attack, etc. would show nylon to be clear winner.

Heat. Placing a nylon tubing against a hot exhaust header would not be a good idea, and same for a copper or steel tubing. The latter two might not melt, but a competent designer/installer takes care to avoid those chafing situations where fuel/oil/hydraulic/electric/hot compressed air, etc. are concerned

I see all kinds of oil lines on ebay, prices from seven or eight bucks to nearly a hundred bucks

"evil energy AN10 Nylon Black Braided Oil/Fuel Hose 1Meter+AN 10 Straight Hose End 90 Degree Swivel Fitting Hose End Fuel Adapter
Rated 4.8/5 based on 16 customer reviews 4.8 (16 votes)" $9.68

"Autometer 3228 - # 4 AN SS Braided Oil Fuel Pressure Gauge Hose Tubing Line Kit
Item Information
Condition:
New
Quantity:
More than 10 available / 9 sold
Price:
US $84.75"

"Stainless braided hose" what's the liner material? Is it heat-proof? does the stainless braid perfectly insulate the liner from heat damage?

So there. My $0.02