Lumpskie wrote:FrankenWag wrote:Honestly I don't have an opinion yet- I haven't driven it more than 10 miles (in town) since the swap, I have been having some brake booster issues, and other little bugs to work out. Hopefully this weekend will be its first actual driving moments!
Tim
Oh, I see. After you drive it for a bit, I'd love to know what you think of the difference! LM7s can be had for fairly cheap out here and I occasionally wonder if it would be better to swap than to TBI when the time comes.
OKay, after driving it about 200 miles in the last week or so, I can say without hesitation, the LM7 swap is the best mod i've made. I've got some driveline vibrations I need to work out at highway speeds (from the offset pinion i believe + lift) but aside from that it's stellar. the power and economy are just night and day, and the smoothness/quietness plus the excellent fueling and starting - it's amazing.
Things i've learned - not sure if I should have chosen the 700R4. I had it built initially to be behind the 360, then decided to upgrade to the 5.3 vortec. Had i planned to go 5.3 from the start, I probably should have gone with the 4L60E or 4L80E from the start, just because it's native to the motor. Yes, there may have been some more electronics involved, but it may actually have been simpler. Getting the TV cable (kickdown) and other parts all to work in sync has been a challenge. Also, little stuff that's important to me, like keeping the stock dash and guages, has been a downright PITA to get working across decades of different hardware...
but to drive it is to love it.. really!
T