This 1983 Lotus Esprit Turbo is packing something different in the engine compartment: a 1989-vintage Yamaha SHO 3 liter DOHC V-6 engine, courtesy of a Ford Taurus SHO. Catch it for sale on eBay, before it expires on 13 Nov, 2012.
This is the second Esprit we’ve seen with an SHO engine swap. This example is a 1983 S3 model. It’s original Lotus 2.2-liter belt-driven SOHC engine is an “interference engine” – meaning that when (not just if) the timing belt breaks, the valves and pistons will collide. Religious replacement of the belt is a must, a thankless task which requires very serious close-quarters wrenching skills if not an outright engine removal (depending on who you ask). So unless you’re an absolute purist, the SHO engine makes better sense with the advantage of more power out of the box as well as more potential.
The transmission adapter was built by Kennedy Engineering, who has a long list of available adapters available on their site. The engine features professionally ported heads by Star Racing, extrude honed and fully polished intake manifold, 24 lb. injectors, 77 mm MAF, and a custom exhaust system.