The Most Powerful Chevy Engines of the 1970s

CHICAGO, IL - JULY 23: A Chevrolet emblem is displayed on the front of a dealership on July 23, 2014 in Chicago, Illinois. GM today announced the recall of another nearly 720,000 Chevrolet, Cadillac, Buick and GMC vehicles for various defects. (Photo by Scott Olson/Getty Images) /

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PIERCE, NE – SEPTEMBER 26: A Chevrolet Monte Carlo with a big block motor is prepared for auction in a field on the Lambrecht family farm on September 26, 2013 in Pierce, Nebraska. The cars, about 500 total, from the Lambrecht Chevrolet Dealership will be sold at auction this weekend. When Ray Lambrecht, who ran the dealership with his wife Mildred for 50 years, would get in a new model year car he would put any unsold cars from the previous model year into storage along with any used car trade-ins that remained at the dealership for too long. Many were stored outdoors on the farm. These leftover cars along with dealership memorabilia will be sold at the auction. Many of his 500 cars being offered at the auction have never been titled and have less than 20 miles on them. An estimated 10 to 12 thousand car enthusiasts from around the world are expected in Pierce, a town with a population of 1,700, for the auction. Bidders from about a dozen countries have already started the bidding at Proxibid.com (Photo by Scott Olson/Getty Images) /

1975 LS4 454ci

In 1975 the strongest engine Chevy offered was the 215hp LS4. Those were dark times for Chevy fans.

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