No, the steel bumpers from a 1977 Camaro will not fit in a 1978 Camaro, As the 1978 "Bumper" is part of the front end. Taking off the 1978 "Bumper" would mean cutting it off, which would make the car look like something else.
no
No.
measure it hub to hub and see if it has to be shortened and if it does you have to shorten it and then move all mounting points to work with the nova.
165hp
ok good choice
On the front of the engine
Yes
No, not till 1978
No, not till 1978
The original cost between $4.5k and $5k.
if the bolt pattern is the same and bolt size yeah then it'll fit