GM to produce DOHC 6.2L Gen V
Goodbye pushrods!
A leaked 149 page memorandum of understanding between GM, a union and a major parts maker in the US has provided an interesting insight into the upcoming move away from pushrods to overhead cams for the upcoming Gen V replacement for the current Gen IV engine lineup. The new Gen V engines is expected to deploy late 2010 and carry through until 2015.
Widely sold in vehicles in the US, and also in Australia under the General Motors Holden brand name, the engine will have the following features:
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- 6.2L capacity
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- Dual Overhead Cams
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- 4 valves per cylinder
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- Cylinder deactivation, starting 2011
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- Cam phasing (date unknown)
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- SIDI E92 Controller for engine management, starting 2010 and used through to 2016
Other indications include:
- 6 speed transmissions to continue: no sign of 7 speed such as found in some Euros.
- a Gen V 5.x litre single overhead cam variant
So much for reducing capacity so people can hug more trees! Lets hope Ford continue the same trend.
October 2nd, 2007 at 10:38 pm
Thats a scoop! I am glad they are still progressing down the big cubes path, and also modernizing as pushrods are a bit dated to say the least!
That being said, their engines are pretty good even with pushrods.
October 4th, 2007 at 11:42 am
So have you read this leaked document?
October 4th, 2007 at 11:46 am
Much of it is to do with how various types of labour will be dealt with, such as redundancy rules, pay rates etc.
But then it goes on to show slides of production planning going through until around 2015-2016.
Its in some of those slides that it details the manufacturing of some components which have been awarded to various plants. It includes some engines, (I focussed mainly on the V8’s as that is what interests me, but it also mentions others) and the features of those engines and when those parts of production start. It also talks about instrument clusters, some transmissions etc.