1974 Twin Coach Cortez with 8.2 detroit engine swap - recent paint job - Search for: Advanced Search Place Ad Browse Ads Search Ads 1974 Twin Coach Cortez with 8.2 detroit engine swap - recent paint job - Contact Information Contact Amalin Phone: 575 5900714 More Information 27 feet - all solid wood interior - newer stove - micro wave / convection oven - engine upgrade (to Detroit turbo charged 8.2 15 mpg) done in 1998 invoice available . This Ad has been viewed 1205 times.