Best Year for Mopar 360 LA Engines

318 = E48
The later model 360 smog heads (injection ports) I have seen on 4 bbl 318's have smaller intake ports to match the head ports. If you look at an engine gasket kit they have two sets of intake gaskets. 1 - 318 and 1 - 360. The 318 gasket matches the 360 smoger 4 bbl intake.