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Rover V8 engine
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==3.9/4.0== [[File:Range Rover 3.9 V8 engine.jpg|thumb|The 3.9 L Rover V8, a bored-out version of the original 3.5 L engine, was used in several [[Land Rover]] vehicles, [[TVR]]s, and the [[MG RV8]].]] [[File:2003 Morgan Plus 8 4.0 litre V8 engine.JPG|thumb|2003 [[Morgan Plus 8]] 4.0 litre V8 engine]] Land Rover used a {{convert|3946|cc|L cuin|1|abbr=on}} version of the Rover V8 throughout the 1990s. Bore was increased to {{cvt|94|mm|in|2}} and stroke remained the same at {{cvt|2.8|in|mm|2|order=out}}. The engine was revised in 1995 and thereafter referred to as a 4.0 to differentiate it from the earlier version, although displacement was unchanged. The revisions consisted of a new intake and exhaust system, extra block ribbing, revised pistons, and larger cross-bolted [[main bearing]]s. The 1995 4.0 produced {{convert|190|hp|kW PS|0|abbr=on}} and {{convert|236|lbft|Nm|0|abbr=on}}. Production of the 4.0 ended in 2003. The final version of the engine, used until 2004 in the [[Land Rover Discovery]], produced {{convert|188|hp|kW PS|0|abbr=on}} at 4,750 rpm and {{convert|250|lbft|Nm|0|abbr=on}} at 2,600 rpm. Applications: * 1990β2004 [[Morgan Plus 8]] * 1991β1995 [[Ginetta]] G33 * 1992β1996 [[MG MGB#RV8|MG RV8]] * 1986β1993 [[TVR S Series|TVR V8S]] * 1989β1995 Land Rover [[Land Rover Range Rover Classic|Range Rover]] (known as a 3.9 in this application) * 1991β2000 [[TVR Griffith]] * 1992β2001 [[TVR Chimaera]] * 1983β1993 [[Marcos Engineering#Marcos Mantula, Spyder and Martina|Marcos Mantula]] * 1992β1999 [[Marcos Mantara]] * 1994β1998 [[Marcos LM400]] * 1997 [[Marcos Engineering#Marcos Mantaray|Marcos Mantaray]] * 1995β1999 [[Land Rover Range Rover (P38A)]] in SE trim * 1996-2004 [[Land Rover Discovery]] * 1994β1998 [[Land Rover Defender]] (only used as standard on USA-spec vehicles- available only to special order in other markets.) * 1998 [[Land Rover Defender|Land Rover Defender 50th Anniversary Limited Edition]] In the early 1980s [[TVR]] approached [[Andy Rouse]] with a view to using his race-developed {{convert|3946|cc|L|1|disp=flip|abbr=on}} variant of the V8 in their Rover-powered [[TVR 350i]] 'wedge'; Rouse had successfully campaigned a [[Rover SD1]] with a modified V8 on the track. For a number of reasons (primarily cost) Rouse's version was not used, but the concept was passed to alternative engineering firms which resulted in a rare variant of the 3.9. This unit has {{convert|93.5|mm|2|abbr=on}} cylinder bores (instead of Rover's own {{convert|94|mm|abbr=on}} that was introduced some years later) and thus has a capacity of {{convert|3905|cc|L|1|abbr=on}}. Flat-topped pistons and high-lift camshaft gave a compression ratio of 10.5:1. TVR claimed 275 bhp as the output and whilst this is generally disregarded by aficionados, a healthy {{convert|3905|cc|L|1|abbr=on}} engine will produce in excess of 240 bhp. Once a reproducible specification had been determined, the bulk of engine production was undertaken by North Coventry Kawasaki (NCK), which company was subsequently purchased by TVR to become their in-house engine division known as TVR Power. About 100 cars (TVR 390SE) were built with the {{convert|3905|cc|L|1|abbr=on}} engine; TVR's later '400' offering being based on the then-current Range Rover 4L of {{convert|3946|cc|L|1|abbr=on}}. Applications: * 1986β1989 [[TVR 390SE]]
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