Book excerpt: The mysteries of the versatile LS series engines are unlocked in the Haynes Techbook Cummins Diesel Engine Manual. Covering everything from engine overhaul, cylinder head selection and modification, induction and fuel systems, camshafts and valve train, to beefing-up the bottom end, turbo and supercharger add-ons, engine swaps and extreme builds, this manual will help you get the most from your LS-powered vehicle.