Engines

[BAR-AIR]

I thought I had read somewhere that the Pontiac G5's with the 2.4 Ecotec had forged internal components. Can anyone confirm that? What years and models....
THX

 

[Johvans]

I think its the 2.4 in general. I read the same thing although I can't find the article again. If I was going to do it all over again that's what I would do as well. It gets you the better ecu for HP tuners as well.

John

 

[Briann1177]

https://www.cobaltss.net/forums/2-4l-le5-performance-tech-46/2-4-crank-=-forged-35755/

 

[Silverback]

I've seen that too, forged or close to it. Maybe it was on alphafabindustries.com 'Think it was 2008 & before had the good crank. If anyone is interested I've got an '08 Pontiac LE5 said to have about 18,000 miles on it. Really clean and reasonably cheap.

 

[Brian74]

I read 2007 and earlier. This being the reason many builders were snatching them up and adding turbos to put them in sand cars.

 

[BAR-AIR]

How about the Pontiac G6’s... was talking with a friend that has 3 G6’s all 2009 2.4 Ecotecs (32k,53k & 60k). None of those should be direct injected? And how do you tell which reluctor wheel (7X?)?

 

[JSATX]

I read 2007 and earlier. This being the reason many builders were snatching them up and adding turbos to put them in sand cars.

I heard this as well. In 08 the rods were switched to powdered is my understanding.

 

[Silverback]

I read 2007 and earlier. This being the reason many builders were snatching them up and adding turbos to put them in sand cars.

Brian, you're right. 'Found it on AlphaFab: "The early production [2006-2007] 2.4L LE5's are BOOST READY w/ Mahle hypereutectic aluminum pistons, forged rods, & nodular iron crankshafts”. I checked the invoice for my LE5, it is from a 2007 G6, built 09/2006.

 

[Silverback]

How about the Pontiac G6’s... was talking with a friend that has 3 G6’s all 2009 2.4 Ecotecs (32k,53k & 60k). None of those should be direct injected? And how do you tell which reluctor wheel (7X?)?

LE5's have variable valve timing, but not direct injection. 'Don't know about the reluctor.