Does this sound like rod knock?

Contamination in the oil pan?
Contamination in the radiator?
Get another oil filter and mount it.
Find a tool to cut open the original filter and look inside the paper pleats for metal particles.
Look at the attachment, you have an interference fit engine. Meaning any thing on the drive train that is out of time, will strike the valves and pistons. Stop running the engine and have a professional test connecting rod play with a "dial indicator". If none is found, look at the crank to cams alignment.
 

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Thank you for the reply, I just now saw it. Unfortunately I've long since thrown out the oil filter. Today I am pulling the motor to have the bottom end looked at. Here's a picture of the top of the engine after running it for a few seconds, it's forcing oil out up there from somewhere.
 

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