Magnum Designation

[Madmax440]

Can someone tell me what the Magnum designation on the engine actually designates I have a 440 Magnum and had a 383 Magnum. Now I do get a certain fuzzy feeling being able to attach the Magnum at the end of the 440 when asked what size engine I have, but have never had any idea what the I was really saying (as with most things).

[Chryco Psycho]

it was the HP version of the engine , basically different cam & manifolds to make more power

[Madmax440]

Thanks Psycho. Therefore, I should start introducing myself as Rick Tracey Magnum then.