The girth of the block factors into this unofficial designation as the modern 7.0-liter LS7 from the Corvette is based on a small block design while early Chevrolet W-series 348 and 409 ... engine ...
When they do come up for sale, which is rarely, they don't often sell for fewer than six figures ... respectable numbers even for the muscle era that would arrive a few years later. Chevrolet's 409 ...