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'''Ultra''' was the codename for [[General Motors]]' next-generation family of [[DOHC]] [[V8]] engines that was being developed to replace the aging [[Cadillac Northstar engine|Northstar]] as the V8 engine of choice for GM's premium vehicles. There is very little information on the engine's specifications currently available, however its lowest [[Engine displacement|displacement]] would presumably have been similar to the Northstar's, (with higher-displacement versions probable as well), and it would very likely have incorporated technologies from the [[GM High Feature engine|High Feature]] [[V6]] family, including continuously [[variable valve timing]] on both intake and exhaust ports, as well as provision for [[gasoline direct injection]]. These engines would probably have been adaptable for both [[Longitudinal engine|longitudinal]] and [[Transverse engine|transverse]] applications (the latter would have been used by the rumored V8-powered versions of the [[GM Lambda platform|Lambda]] [[crossover SUV]]s). | |||
Despite previously revealing plans to allocate production to the [[Tonawanda]] Engine plant, as of January 2008 GM has cancelled development of this engine. <ref>[http://www.edmunds.com/insideline/do/News/articleId=124170 GM Drops Plans for New DOHC V8 Engine in 2009<!-- Bot generated title -->]</ref> | |||
==References== | ==References== | ||
<references/> | |||
[[Category:GM engines| | ==See also== | ||
*[[List of GM engines]] | |||
*[[Cadillac Northstar engine]] | |||
*[[GM High Feature engine]] | |||
==External links== | |||
*[http://www.motortrend.com/features/auto_news/2007/112_0702_gm_ultra_v8_engine Motor Trend article] | |||
[[Category:GM engines|Ultra]] | |||
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