The usual "short block" supplied by a dealer's parts department generally did not include the camshaft, lifters, or other timing system components like the timing chain and sprockets, etc. It was simply a block, crankshaft, rods and pistons. The technician was expected to swap the other components from the original engine. These were usually used for warranty repairs when a fairly low-mileage engine had failed for some reason. Independent rebuilders supplied short blocks with the timing sprockets and chain, and a reground camshaft. Heads were expected to be swapped from the original engine, usually after receiving a valve regrind. The rebuilder I used for many years doubled the warranty period if I bought a "long block" with heads they had reworked. Their package also included an oil pump, a set of lifters and a full gasket set, which was not included with their short block. All I needed to do was swap sheet metal, and intake and exhaust parts. GM dealers also offered their "Target Master" line of new, not rebuilt replacement engines, which included new sheet metal parts like the oil pan, timing cover, and valve covers, at a VERY attractive price. Swap intake and exhaust parts, water pump and distributor, and you're back on the road!
Jerry
Last edited by Hotrod Lincoln; 03/28/2011 4:15 PM.