1968 L89 427/435 with Aluminum Heads (L89 Option) The L89 was very rare, it was the same engine as the 435, except the L89was outfitted with Aluminum Heads which saved about 80lbs on the front of the car. This particular example is very rare as it is "Unrestored" as certified by its "Bloomington Gold Benchmark" status; this means the car earned a "Bloomington Gold- Gold Certification" and a "Bloomington Gold Survivor" award. This car has the "Original-Born With" motor and drive-line. This car has also earned an NCRSTop Flight and the coveted Muscle Car & Corvette Nationals Triple Diamond Award (Car has to earn a Bloomington Gold, NCRS Top Flight and Gold Concours). Cars can be restored numerous times, but they are "ONLY ORIGINAL" once! This is a great investment in an all original example or a rare big block L89 Corvette. Documentation: