The 1970s was a lost decade for car enthusiasts. Horsepower ratings took a big hit, but GM did their best with these powerful V8s. 5. LS4 454 V8 – 275 Horsepower The 1970s was a lost decade for car enthusiasts. Horsepower ratings took a big hit, but GM did ...
View more: Top 5 Most Powerful Chevrolet Corvette Engines of the 1970s