I have a set of these small block rods. They are 340 Trans Am rods p3614514.
But the the question came up, how do I prove that's what they actually are ?
I guess it's a legitimate question.
How would you Prove that these are 340 T/A rods ?
Those are the premium rods Direct Connection sold in the mid 70’s.
Used a set in a B/Gas car that saw 9000+ and never failed.
Used a set in W-2 motor running road race, ran the snot out of it for a bunch of miles and it saw 7600 in the straights. Never had an issue with them.