We test drove both... and both my wife and I thought the 2.7 EB was quicker (as I'm sure it's a lighter engine package). But when it came time to buy and we felt with a full family in the truck and the bed loaded up that the 3.5 EB would suite us better.
So we went with the 3.5 EB and have been very pleased. We also considered resale and felt the 3.5 EB would have an edge.
However, if I was looking for a daily driver to role up miles on and wasn't worried about towing and resale.. that 2.7 sure was nice.
I did recall some conversation about the older years having issues with the way the injection was configured. Can't remember... just remember enough to ask the question.
The older EB's were Direct Injected only so no fuel ever hit the back of the intake valves which caused them to have build up.
The newer ones have Port/Direct Injected (according to rpm's) so they will keep them cleaner.
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