We discovered this unique 1986 BMW 635 CSi (E24) listed last year on Seven82 Motors. The classic coupe originally came with a 3.4 L M30B34 inline-six but was swapped to a turbocharged 4.0 L Ford Barra inline-six by Golinski Performance. The motor features upgraded valve springs, FG Turbo intake manifold, upgraded injectors, custom exhaust manifold, and Garrett GTX3582 turbocharger. Real Dyno Performance tuned the motor and made 418 hp (311 kW) to the wheels. Behind the Barra is a Falcon (BA) BTR four-speed automatic transmission and custom one-piece driveshaft. No mention of the rear differential.
Source: Seven82 Motors