Cosworth builds short blocks and long blocks for racers all around the world. The short blocks start at US$5562 for a stock stroke engine and up to $9269 for an engine with a billet 81mm stroke crank. The long blocks start at $12359 and as much as $16375 depending on configuration. You can see the various configurations of engines here.The ratio of short blocks to long blocks is probably 5 to 1. All Cosworth engines include forged or billet cranks, Cosworth billet rods, Cosworth forged pistons, Cosworth bearings, and new factory engine block castings. The long blocks also include new factory cylinder head castings, Cosworth valvetrain, Cosworth FSL metal head gasket, and Cosworth camshafts. Of course all the engines contain that Cosworth secret sauce which has been developed from building some of the world's best engines for the last 52 years. The engines may sound expensive, but how much did those 2 or 3 engines cost you from other builders? You only need 1 from Cosworth.