Here's some stuff from a 1980 MPC. These parts are all that remain
of many
different numbers, primarily because they were the ones used on the
last
Pontiac V8s. Usage shows from 1968 to 1979. 

Dipstick--no AC, PN 9793342, 19.75 " long. Length is overall. 

Dipstick--AC, PN 9793341, 31.25" long. 
Two other AC sticks shown, 30.375" and 32.25". 
Used on RAIII and 455HO.

Lower tube in block, PN 9795830. 

Upper tube--used w/ AC, third type only, PN 480843.

Tube, block to baffle, this is inside the pan and bolts to the center
main--PN 490768. 

Dipstick variously described as "indicator" or "gage".

Those are in Group 1.516 for you.

----------------

From PY catalog:





GME157 Description: 67-79 DIP STICK TUBE
PRESS FIT FROM INSIDE BLOCK. PROTRUDES OUT.
USE GME157C FOR EXTENSION.
FITS ALL 67-79 PONTIAC V8'S







GME157A Description: 69-79 TUBE- DIPSTICK (BOTTOM)
USED ON MOTORS W/O WINDAGE TRAY. GOES INSIDE THE OIL PAN.
Technically only for 1972-1979 but will work on 1965-1968.
For correct 1965-68 use GME157R







GME157B Description: 67-79 TUBE- BOTTOM W/O BRKT
USED ON MOTORS WITH WINDAGE TRAYS.
presses into the inside of the block and runs through the windage tray.
This part is now an excellent stainless steel repro at a better price.







GME157C Description: TUBE-DIP STICK UPPER W/AC
This upper tube requires sanding and a little grinding to fit in GME157.
Fits 1970 AND LATER V8 EXCEPT RAM AIR OR 455 HO, MIGHT WORK ON 68, 69 ??
HAS BRACKET THAT ATTACHES TO FRONT COMPRESSOR.







GME158 Description: 67-78 DIP STICK- W/AC
WILL WORK ON ALL PONTIAC V8 BUT NOT CORRECT FOR EARLIER CARS

GME159 Description: 67-78 DIP STICK W/O AC
WILL WORK ON ALL PONTIAC V-8 BUT NOT CORRECT FOR EARLIER CARS






and

Looks like this when tray is installed.