Yes I know that the engine makes a lot of the difference on how it sounds.. But actually 318 and 360's are really close to the same bore stroke, and none of them are weird firing intervals, So once I change the cam and upgrade heads an such it shouldn't be out of the range of possibility to try for a sound like that. The Chevelle was close to what I am looking for.
And I don't think the lexus engine is what I am looking for. kinda small and anemic for my tastes! haha! thanks for the ideas though!