Mopar Performance M1 Intake for 340 motor

M1 single plane or dual plane?

M1 dual plane P4629116
M1 single plane P4452891

Water neck/thermostat locations were normally centered like stock. The last run of the intakes were more Magnum like than LA. But still use a LA thermostat housing.
How is the P4452891 different from the P4452892 and the P4452893? I see a lot of the P4452893's available, are they similar or different bolt patterns?