Correcto El Mundo,
The only factory production 318 'High Performance' was the LM-318 Marine Engine.
A 4-Barrel rated at 240 Horsepower.
But for a while in late-1967. Mopar toyed with the idea of a 318 'Junior Performance' 240 Horsepower engine for the 1968 Model year.
As Chevrolet had the 327/250 HP
And Ford had the 302V/230 HP
And American Motors had the 290/225 HP