Mopar Performance M1 Intake for 340 motor

rumblefish360 said
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.

Thanks, that's very helpful.