Lamborghini Countach 5000 QV

About the Lamborghini Countach 5000 QV

In 1985 the engine was improved again, bored and stroked to 5167 cc and given four valves per cylinder (quattrovalvole in Italian). The carburetors were moved from the sides to the top of the engine for better breathing—unfortunately this created a hump on the engine deck, reducing the already poor rear visibility to almost nothing. Some body panels were also replaced by Kevlar. In later versions of the engine, the carburettors were replaced with fuel-injection.


US spec QV, showing the mandatory federal bumpers
For the first time, a US specification model was produced by the factory, with styling changes to allow bumpers to meet US federal standards. (Many had those bumpers removed immediately as the bulky looking addition to the car was said to ruin the otherwise smooth lines of the body.) Although this change was the most notable on the exterior, the most prominent change under the hood was the use of Bosch K-Jetronic fuel injection providing 414 bhp (309 kW; 420 PS), rather than the six Weber carburetors providing 455 bhp (339 kW; 461 PS) used in the Euro-spec model. The 1985 US model had a base price close to $100,000. Only two optional extras were available: a $5,500 aerodynamic spoiler and a $7,500 sound system.[citation needed] As for other markets, 1987 and 1988 model Quattrovalvoles received straked sideskirts. 610 cars were built.