At Miami Engines, we specialize in BMW Engine rebuilding (Stock and Performance builds).  $500 price is the deposit amount, not the amount to rebuild your engine. Contact us for pricing for your BMW engine. We are also a full service BMW shop and offer installation for your engine. Once we receive your engine, we will have it fully disassembled, and rebuilt with new internals within 5-10 business days. We also have most BMW engines in stock. All our engines and rebuilds are backed by a 1 year parts warranty. Contact us for more information.