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Rover V8 engine
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==4.3== For the Griffith and Chimaera, TVR Power, a Coventry-based subsidiary of sportscar maker TVR, built a Rover V8-version with a {{convert|4280|cc|L CID|1|disp=flip|abbr=on}} displacement using the {{convert|77|mm|in|2|abbr=on}} stroke crankshaft and {{convert|94|mm|in|abbr=on}} bore size. The bore and stroke were identical to Rover's 4.2 engine but Rover rounded down to 4.2 L while TVR rounded up to 4.3 L. The main difference between the Land Rover and TVR versions lies in the usage of Land Rover 3.9 pistons (usually of the 9.35:1 compression version, some report of low compression (8.13:1) pistons being used in a small number of engines) of which the tops were machined down to match the deck height, thus increasing static compression ratio. Head gaskets were originally copper and slightly thicker than the composite gaskets of later engines. TVR 4.3 engines tended to have elaborately ported cylinder heads with minimized valve guide protrusion into the ports, and Duplex timing chain with timing adjustment by vernier gear were specified although in practice, not all engines received it. Camshafts were usually Kent Cams 214 spec,<ref>{{cite web |url=https://www.kentcams.com/part/H214 |title=H214 |website=Kent Cams |location=[[Kent]], England |access-date=2020-06-27}}</ref> although 'big valve' versions could have a 224 or even a 234 (race) cam installed. The so-called 'pre-cat' versions of the Griffith predominantly used this engine, although a 4.0-litre version was also available. The Chimaera was introduced with choice of 4.0- and 4.3-litre engines. A small number of 'Big Valve' versions, sporting modified cylinder heads with {{convert|43|mm|in||abbr=on}} intake and {{convert|37|mm|in||abbr=on}} exhaust valves and a more radical camshaft profile, found their way to early Griffiths and Chimaeras. Applications: * 1992β1993 [[TVR Griffith]] * 1993β1994 [[TVR Chimaera]]
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