Quote:
Originally Posted by sdbrown84  LS7 is made for a 4" bore as stated before. I would just go that route or not even mess with a LS3 and call it a day at 6.3L. For reliability it is ALWAYS best to stick with an engines' designed bore and stroke. Otherwise GM would have made 1 block and just stroked it differently for each application. |
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.