• Ford Motor Company's 289-cubic-inch V8 was released in 1963.Auto Engine image by Andrew Breeden from Fotolia.com
  
  Ford Motor Company released its 289-cubic-inch V8 engine in 1963. By 1967, the engine had three varieties, designated by the letters "A," "C" or "K." The "K" variation was the most powerful, with a modified version appearing in the Shelby GT350. The last production year for the 289 engine was 1968, and would be replaced by the 302-cubic-inch V8.
  
  

289 "A"

• Like all the 289 engines in 1967, the "A" class featured a 90-degree engine with overhead valves and 289 cubic inches of displacement. The cast-iron-intake "A" engine, which weighed 465 lb., produced 225 horsepower at 4,800 rpm and 205 ft.-lb. of torque at 3,200 rpm. Compression was set at 10.01 to 1. The engine ran on premium gasoline.
  
  

289 "B"

• The "B" version was not quite as peppy as the other two, producing 200 horsepower at 4,400 rpm and 282 ft.-lb. of torque at 2,400 rpm. However, with a 9.31-to-1 compression ratio, it could run on regular gasoline. The engine dropped 5 pounds to weigh in at 460 lb.
  
  

289 "K"

• The "K" version was the most powerful engine, which made 271 horsepower at 6,000 rpm and 312 ft.-lb. of torque at 3,400 rpm. However, the modified version, which was placed in the Shelby GT350, possessed Tri-Y headers and the aluminum Cobra intake manifold. These modifications boosted the horsepower rating to 306 at 6,000 rpm and the torque specification to 329 ft.-lb. at 4,200 rpm. Compression remained the same as the "A" class, but would run on premium or super premium gasoline. The engine weighed 475 lb.