1966 CHEVY IMPALA SS COUPE * 1966 Impala SS 396 Big Block * Build sheet * True SS matching numbers * M40 3 speed transmission * G60 factory air conditioning * Original Texas solid dry body * Beautiful interior recently restored * Still on a Texas title * Very true to original form. SUPER SPORT NEED TO KNOW INFO!!!! In 1961, the Impala SS (Super Sport) was introduced to the market. The SS badge was to become Chevrolet&apos;s signature of performance on many models, though it sometimes has been an appearance package only. The Impala&apos;s SS package in 1961 was truly a performance package, beginning with the 348-cubic-inch (5.7 L) V8 engines available with 305 brake horsepower (227 kW), 340 brake horsepower (250 kW), and 350 brake horsepower (260 kW) or the new 409-cubic-inch (6.7 L) V8, which was available with up to 425 brake horsepower (317 kW). The package also included upgraded tires on station wagon wheels, springs, shocks and special sintered metallic brake linings. Starting in 1962, the Impala SS could be had with any engine available in the Impala, down to the 235-cubic-inch (3.9 L), 135 brake horsepower (101 kW) inline-6. With one exception, from this point until 1969, the SS was an appearance package only, though the heavy-duty parts and big engines could still be ordered. From 1962-on, Super Sports were limited to the hardtop coupe and convertible coupe exclusively. The Super Sport package was known by Regular Production Option (RPO) Z03, from 1962&#8211;63, and again in 1968. 1962-64 Super Sports came with engine-turned aluminum trim, which was replaced by a &quot;blackout&quot; trim strip in &apos;65 which ran under the taillights. &quot;Super Sport&quot; script replaced the &quot;Impala SS&quot; badges in 1965 and 1966. The exception was the Z24 option package available in combination with the standard Z03 Super Sport package.