Thanks...love GMT400's too
When new, the 7.4L would occasionally get +15 MPG and hoping to get that or more after the rebuild. With a 42gallon fuel tank..kidneys would dictate a rest stop before adding to refuel
Key is go have enough torque down low in the RPM curve to take advantage of that 0.5 OD
Not saving anything in money/ROI...just having the ability to choose wnen/where to stop for gas
There is a savings in not spending the kinds of money new vehicles cost these days, and not into LAGs
Plus, with a tuned big block with 5.1's...going to be sooooo much fun !!!