The Gen-IV LS7 is the largest factory-installed small-block Chevy V-8 ever, displacing 427.8 cubic inches, or just over 7.0 liters. It featured the same bore as the 1970s 400-cubic-inch engine at ...

Read more: Major Car Battery Brands Ranked Worst To Best We found three Chevy small-block crate engines with at least 500 horsepower with displacements including 376, 400, and 427 cubic inches (6. ...