I misplaced mine and looking at the net looks like 273-360 are sold the same as 361-440?
Also, is the Cam Bolt with the Hole 1/8th" or 3/16" Hole? I see some say it goes on the driver-side top but all the 340s I ever pulled down were on Passenger Side Top to drip down on the Tab.
But did pull a few down non-340 that were on Driver Side Top.
So wonder if the ones I saw in the factory motors with holes drilled and installed on Driver-Side were Monday Morning or Friday Built Mopar motors. They did look to never be apart. Assumed it was a factory assembly mistake?

I think the slingers are the same, as far as the cam bolt size on SB they are 7/16 course thread.
Make sure and use a grade 5 or higher bolt and torque it to the proper torque

So you don’t confuse anyone, you are talking about the thrust plate bolt, not cam bolt.

If I recall, later on Chrysler dropped the tab and the bolt with hole and simply cast a groove in the back side of the thrust plate to wet the chain.

I believe at some point they deleted the slinger too.

Sorry I assumed everyone would know the 3 bolts that bolt the trust plate on that holds the cam in place. One had a hole {1/8th Inch or 3/16th?} It dripped onto the tab that was on the passenger side. But books and a few factory motors I pulled down had the bolt with hole in them were located on the Driver Side. Was it a factory mistake?

They discontinued the tabs. But brought the Tabs back, later on, was built-in as part of the newer V-6 and V-8 timing chain tensioner with a groove in the back to weep. So they must have needed them.
I have ARP Grade 8 Cam Trust Plate Bolts but unsure if the hole should be 1/8th or 3/16th.
My oil Slinger was lost so wonder if they are all the same 273-360 and 361-440 are they all the same?

My late build 1973 340 had Bolt with Hole, Tab, and Grooved Trust Plate with a Slinger. Must have been using up parts stash on the line.

Factory parts book shows same P/N for BB and SB.

I can't remember if those retainer plate holes are 1/4 or 5/16 size, I think 1/4-inch course
I'm pretty sure the upper drier side bolt holes is not a blind hole; it is opened on the back side into the lifter valley and relies on drip oil through that hollow bolt dripping onto the original tabs

my memory also getting a bit / hollow bolt upper R ( passenger side) which is open to residual oil in the valley. Oil drips down onto sheetmetal piece secured by lower bolt and oils chain. This was on the 340's with the roller type chain. not sure on other years or applications'
1/4 or 5/16? i was sure they were 5/16's but now you have me thinking they were 1/4-20 grade 8