318 replacement cams....

Safe Bet,

Mopar #P4452759

.430" /.450" Lift ~ 260*/268* Duration ~ 44* Overlap ~ 110* Centerline

* Duration @ .050" = 221*/228*

Smooth Idle and Low-Speed Torque

You can still use the 318 Valve Springs, as long as you keep it under 4800 RPM's.