In the '60s, it was common to convert the GM 153 four-cylinder-out of the Chevy II-which provides great power and torque while retaining good fuel economy. This little Nova mill is built to the hilt and hooked to a Ford Top Loader four-speed with a T-176 tower, a Dana 18 transfer case, and a Dana 44 rear axle with a Detroit locker and a full-floating kit. The front Dana 25 houses a modified Dana 27 Powr-Lok, and both diffs carry the stock 5.38 gears.