The motor has been borrowed from a 1980 M535i Name Code M90 with a Dog Leg 5 Speed Transmission The Motor had been stripped and redone with new Pistons and Rods Head had been refurbished with New Valve Springs, Valve Seals & Schrick Cam All the Tune Up parts have been repaced, Spark Plugs, Wire Plugs, Belts, Water Pump & Thermostat Custom Fabricated Exhaust Suspension has been replaced with Yellow B8 Blisters Shocks & Shorter Springs Interior has been Reupholstered with new leather, new headliner, insulated and new carpet Runs and drives amazing. 100% Rust Free.