Hi everybody: Yes my 340 is finally getting built but we ran into a problem two of the rods are no good. We also found out that these rods that were sent with the motor were not it's to begin with. The block and crank are in great shape so I was looking at these. Scat Pro Comp I-Beam Connecting Rods 2-ICR6123-2124 but they only go down to the year 1971. I know compression went down just a little that year then a lot in 72. Price and quality does mater. Not too expensive and I wont be scream around at 7000 rpm. Just a hot little street beasty to make the girls go ooooo. Of course 99% say "I like Mustangs better though"