Oil hole in stock 455 connecting rod?

My stock 71 455 connecting rods appear to have an oil hole on the inside (camshaft) side of the rod at the parting line between the cap and rod. Is this to oil the camshaft? Also, my Federal Mogul replacement rod bearings (that I have removed) did not have a matching hole (or notch). I am yet to buy replacement bearings (having the crank turned now), should I look for bearings with this hole?

 

That’s called a “spit” hole
Back in the old days ( 80’s lol) rod bearings used to have the corresponding hole at the parting like on the bearing shell.
Oil was supposed to “spit” on the cylinder walls.
Apparently it’s not really needed as there’s enough oil misting around in the block from Windage.

 

Yes.

No.

 

Connecting rods don't connect to the camshaft. They connect the Crankshaft and the pistons. The camshaft in our cars is driven by the timing chain.

FYI.

 

What Kingfish said.

 

I think he was referring to the side of the rod that faces the cam in rotation.

 

Exactly, with as much concern as there seems to be anymore, about cam and more specifically, lifter quality, it seemed to be a good idea to direct as much lubrication toward them as possible, and apparently, so did Ma Buick once upon a time. I haven't bought rod bearings yet, and would consider purchasing bearings that have the oil hole if they are available. Thought if anyone would know it would be some of the members here. jess

 

"Everybody" used to use spit holes in the connecting rods. I remember seeing 'em on my mother's '66 Biscayne 283. Mostly, they spray oil on the opposing cylinder wall and piston. I suppose they wet the cam, too.

Pretty-much "everybody" quit using spit holes. There's so much oil mist in the crankcase that the spit-holes are superfluous.

If you really wanted, you could easily grind a relief in the bearing that matched-up with the spit-hole; but I wouldn't waste the time, effort or enthusiasm.

 

Just a FYI for anyone curious about this subject, I received my rod bearings from TA Performance a while back and when I opened them to prepare to install my newly turned crank, I found these....

 

Yep, that their “notch” is for the spit hole.
Those must be older bearings, did you happen to look at the date on the back of them?

 

I had not, just went out in the garage and snapped this, wow....