For sale: complete LS1 engine and Caprice Royal 2006 gearbox Complete engine for Caprice Royal 2006. The engine is clean and working, with 180,000 mileage, and personal use. The engine fits Caprice models from 2000 to 2006. And a Caprice Royal 2006 gearbox: 4L60E, a very clean 4-speed automatic transmission. Please contact via WhatsApp ( Phone number appears when clicking the contact button )