Yes, people do headswaps all the time without pulling the motor. As for cam specs, best I could come up with is this...
Non-PI:
Intake .462" lift/201 @.050"
Exhaust .462" lift/208 @.050"
114 intake C/L
113 exhaust C/L
PI:
Intake .507" lift/200 @.050"
Exhaust .534" lift/210 @.050"
114 intake C/L
115 exhaust C/L
I can't verify that these are the correct specs though.