In 1973, the Trans Am added two new colors, Buccaneer Red and Brewster Green. Other exterior upgrades included the updated more modern nose bird. The new hood bird was option ''RPO WW7 Hood Decal'', a $55 option exclusive to Trans Am. The ''Trans Am'' decals were larger than previous versions and shared the same accent color schemes as the hood bird. The 1973 Trans Am engine displaced 455 cubic inches in the base L75 and the Super Duty LS2 option. The base 455 produced 40 fewer horsepower than the round port Super Duty 455 250hp and 290hp respectively. The 1973 Trans Am introduced ''Radial Tuned Suspension''. When ordered, it included 15-inch radial tires. This delivered a more comfortable ride while also providing better cornering. Under the long shaker hood is a pristine engine bay which includes a rebuilt YC stamped 455 V8 circa 1973. This engine has been bored .030 over, forged pistons installed, has roller rockers, a Comp cam, MSD ignition, and casting number 66 cylinder heads. Up top under the mean red shaker assembly is a Holley 750cfm 4bbl carburetor, but have no fear, the original carb is included. On the back of the mill is a correct TH400 3-speed automatic and a 10-bolt 3.08 positraction rear axle is now installed. Noted are Hooker headers on the engine to assist with the exhale. A quick light of the 8 fires and off to the test track I was. Here the performance shone brightly, and handling was excellent as well. Solid braking, and all was working just swimmingly.
