Technical 235 conversions oil pressure gauge

I am going to be installing a 235 in my 41 special deluxe but was wondering if anybody made a factory replacement gauge to match the 235 thanks

 

Is there a problem with your original gauge?

FWIW, the original gauge in my '57 has seen a 235-original engine, then 283 and now a 454.
Works fine.

 

The original gauge only reads up to 30# because the original motor does not have a full pressurized oil system.

 

Have you check Chevs of the 40s to see if they have custom replacement gauge?? I know there are places where you can have your gauge modified to work with the 235 but you'll have to do a search, because I don't know the name of those places. Other than that, your only other option is to install a underdash gauge, like they used to, and it's H.A.M.B friendly.

 

I've run dozens of '41 - '53 Chev cars & trucks with 235, 261, & GMC pressure motors, & have yet to blow up a 30 pound gauge.

 

I want the gauge to be accurate and the car look stock

 

It'll be accurate at hot idle ...

 

I get what you are saying but I am very meticulous and want it to read right

 

Do you really think that you can discern the difference between 28 and 32 psi, on any 'pre- digital' gauges?

Best of luck my man.

 

Not to the exact pressure readings but I do not want a gauge that stays pegged going down the road and I do not want an aftermarket gauge under the dash
I want the stock mechanical gauge to read the correct pressure for the engine

216 reads 0-30 and a 235 reads 0-60

 

Well, you can't get a stock mechanical gauge for your car, that reads 0 to 60...I really think you are over thinking this...IIRC with my semi fresh 235 in my '59 Chevy PU (different truck as I mentioned before), the gauge barely would go over 1/2 way at higher RPMs (say 3500 or so)...heck, if is is a 0-60 reading...was I running 32 PSI, or ...never mind.

Good luck in your quest, but I really think you are going a bit too far with your pursuit

 

I have a 0-30 lb guage on the dash (original) which I use as an "idiot light"-( 30 and pegged = we have oil pressure,
0= engine is not running or I have engine problems), but I will install a 0-100 psi gauge on the side of the engine where the original oil line comes out, via a "T", for diagnosing any evils which lurk.

 

Well my friend in Japan has a 49 suburban with a. 235 and the correct gauge in the dash that reads the correct pressure.
The only part i need is the mechanical that reads correct. The lenses is painted so that can be done and have the gauge changed out

 

I just changed from a low pressure 235 to a full flow high pressure 261 in a truck,chev's of the 40's had the correct high pressure for the trucks I would think they have the correct one for the cars also, it won't hurt to call and ask,I've asked for things not in the parts book and they've had them.

 

This same question was posted by someone else over on ChevyTalk.Org, in the 49-54 forum; it seems someone said one from a truck will fit and work correctly. I tried looking, but could't find the post. I think it was drew1987 who posted it there; same handle here on the HAMB; he was concerned about the same issue. I know what you mean about accuracy; the 51 Bus Coupe with a 350, and a high pressure/volume pump keeps the gauge pegged from startup to 6500 RPM. Tough gauge for sure, and it's probably handling 80 to 100 lbs pressure most of the time. I am Butch/56sedandelivery.

 

Take a look at the gauge for a 53/54 car and compare it to your gauge

 

Or the later AD chevy's and GMCs. The one in my 52 goes to 60.

 

What about other GM makes? B O P? I'm not sure a GMC or Chevy truck gauge would fit your gauge panel. My '55 1st series has full pressure 235 and a 60 lb gauge.

 

Key phrase here is..."...'49 Suburban...", he or someone else added a 0-60# from a big truck 261 cubic inch. You aren't as lucky, perhaps talk to a gauge restorer that can recalibrate the sweep and stencil you a gauge that you want.