The things I replaced when I swapped from \6 to 360 were;
* K-member (or you can use adapter mounts).
* I swapped in disks in the front, the 9" drums are inadequate even with the \6.
* I swapped in an 8.25" rear end which also came with 2.5" by 10" drums. This required the drive shaft to be shortened 1.5".
* I swapped in .890" diameter torsion bars. The \6 bars are inadequate for even a \6.
* I swapped in a V8 radiator.
* I had a 4sp so I needed a new bell housing, clutch disk, pressure plate, flywheel and had to modify the z-bar to fit the bigger bell housing. If you have an auto you will need a v8 automatic and if you have a 360 you will need to get a external balance flex-plate and use the same torque converter or get an external balance converter.
* I had a A-body doner v8 car so all the brackets, pulleys and accessory items swapped directly onto the 360 I built (the doner was a 318 ). I used the starter that was on the \6. I replaced the hoses but used the p/n's of the upper and lower hoses from the doner car for new ones.
* And of course you will need a new exhaust system. I had a built \6 with 6 into 2 headers and dual exhaust so I only need to modify mine to adapt to the v8 headers.
Some of these items may not be necessary to physically make the car mobile but I would consider them all necessary if you plan to drive the car more than back and forth to the end of the driveway.
I did this swap over a couple of years. All the suspension, brake and cooling updates were made while the \6 was still in the car and the car was never off the road for more than a couple of days at a time. I had the 360 already to go from Air cleaner to oil pan with rebuilt suspension attached on the doner k-member. When I actually did the motor swap I started on a Saturday morning and took the car for its first drive with the V8late Sunday afternoon. I would recomend you take the same approach that way the car is available to use verse ripping the motor out and have the car sitting for months or years trying to track down all the little parts you will need but no one ever tells you about.
