The Fast And The Cuda

now that i got your attention im getting a 318 with a 3 speed tranny tomrrow the 3 speed fits my 66 cuda i just pulled one out but the 318 v8 im not sure if its going to fit i got proper brackets and mounts but am i going to need to cut and lower the k frame or any special adjustments that i should know about the car was originally a slant 6