I'm starting a 2.4L engine build and was curious if anyone knew what is the best year and model for the Generation 2 Ecotec 2.4L block?

I have a supplier that has all of them available and my mind is set on the 2.4L, so lets keep on the topic of the blocks.

What are the differences in design and build material or process. I know some are Port Injected and some Direct Injected, but the heads are all interchangeable with little or no modification. So just the block... which one is best and why?

I'm assuming the newer LUK, but I'm often wrong so tell me what you know!


--Christian



2.4L:

LE5
LAT
LE9
LAF
LEA
LUK

 

The LUK, iirc is practically girdled out of the box. If you have access for not to much cash I'd go for it. All the gen 3 blocks are great.