The "Throw Away 318"

The first LA was the 273 like we all know.
But Chrysler used so many items off the Poly 318 shelves to save money. Even the lifter angles are the same (STUPID) angles

The first run 273 cranks are Poly teen forged cranks. But the smaller 273 piston was a HUGE mismatch balance to that heavy crank so Chrysler added a very heavy thick wall wrist pin to the light 273 piston. Equal Bob Weights BABY!

Can you imagine taking that huge slug wrist pin out and putting a custom super light one in and then remove weight from the forged crank? I bet you can take 5-8 pounds out of the crank.
Well the 318 has a smaller piston than the 340 and again they used a heavy wrist pin. I was told the 340 did use used a lighter wrist pin in the heaver piston... Again, what were the Bob Weights? I know there is a difference due to 'Pressed Pin' and 'Full Floating'.

So use the same light wrist pin on the Teen and re-balance the teens crank.