Coax more power from your engine! This guide tells you how to choose L-series engine parts, and prepare and assemble them for optimum power and durability. Filled with L-series mods for road, drag and off-road racing, improved street performance, plus complete mods to crankshaft, pistons, cylinder heads, electrics, carburetion, exhaust and more. Covers 51, 61, 71, 2SX, 24Z, 26Z, 28Z, 28ZX and pick-up truck engines. Includes parts interchange.