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Originally Posted by FUH Q  Thats a good point, but the ls7 costs quite a bit more, so im really trying to figure out if the cost difference is justified. It seems power output would be about the same perhaps a taaaad bit less. Fuel economy would be a little better (i think) because of the shorter stroke. It would likely be a little more reliable. But everything is "a little" and "a taaaad bit" different. Is there any major differences? If not i dont see a reason to go with the ls7 for that much more money if there is no great advantage. |
The stock LS-7's stock 4.125" bore should serve you well. They do cost more as you state however. I have one in my 07' Z and drive it every day. I average at least 25 MPG if that's what you are looking for. Oh yea it's fast too when you want it to be and a great all around engine. Nothing bad to say about this combo.
LSX