AMC-developed-and-built V8s. This was AMC's first V8 engine design and became known as the Rambler V8 as they made their transformation from Nash and Hudson into Rambler, heralding Rambler products as an official division of American Motors Corporation. At 601 lbs, as officially declared by AMC, the Rambler V8 weighs only 26 lbs. more than Chevrolet's small block generic weight of 575 lbs, but its target competitor's offerings typically weighed much more, such as the largest Studebaker 289 V8 weighing in around 675 lbs. AMC introduced their new '57 CID version in the Rambler Rebel, which gave it an advantageous power to weight ratio whereby it may be considered as one of the first muscle cars. All '56-'66 AMC Rambler V8 engines feature a 10" deck height, which by Ford standards, is the dividing line between 'small blocks' and 'big blocks', so the typical 'other make' automotive jargon does not add any useful description. All '66-'91 AMC V8s have the same 4.75" bore spacing as the Rambler V8 and the same crankshaft to camshaft centerline distance but this second AMC V8 design weighs less for a variety of technical reasons. The '66-'91 AMC V8's generic engine weight is 540 lbs. The AMC V8 continued to be manufactured after Chrysler bought out American Motors in 1987, and was the only engine available in the Jeep Grand Wagoneer through the 1991 model year. AMC Rambler V8 10" Tall Deck (1956–1966) (also known as AMC Gen1 V8) AMC Short-Deck V8 square port exhaust (1966–1970) (also known as AMC Gen2 V8) "AMX" AMC Raised-Deck V8 dog leg port exhaust (1970–1991) (also known as AMC Gen3 V8) See also AMC straight-4 engine AMC straight-6 engine AMC V8 engine AMC/Jeep Transmissions List of Chrysler engines References External links AMCyclopedia AMC Rambler Car Club The American Motors Owners Association Engines - Overview Chrysler engines Jeep engines Lists of automobile engines