Aluminum rods on the street
I've had groden aluminum rods in my street car 67 mustang w/ 408cid for over 10 years and 10k miles.
Pulled the pan last night to replace the bearings, we figure it's cheap insurance. Everything looks great. I stand by these connecting rods. Just about everyone said it couldn't be done on the street. I use Royal Purple 50w with a Lucas zinc additive..
This is what works for me..