You are looking at a sweet extremely nice and very powerful Documented SS454. I have original window sticker, owners manual and all numbers match except the original LS-5 Block was replaced by a correct 1971 Crate engine that was professionally balanced etc. This was the only year for the Nevada Silver. It also has black vinyl roof, black interior with Muncie 4-speed, tilt, remote mirrors, Strato-Bucket seats, Center console, Special performance suspension, POSI. Traction axle, initially 4-11 gears changed to 373 for gas mileage.