4L80E weighs 65# more than a 4L60E

[joelster]

Lets take the CPT fueled hate of Jake's out of that statement, and just assume you mean every 60e builder. RPM, FLT, PB, etc etc. They and CPT all offer high rated 60e builds, why do no "fast" cars run them? If they lasted as well as claimed and were as strong as claimed, why in the world would someone install a heavier, power robbing TH400? If the statement of a tenth or two quicker from a 60e when compared to a TH400 is true (which I don't doubt) why aren't 60e builders selling these things like hotcakes on YB?

Riddle me that, cause I can't make sense of it.

I don't believe a 4L60E is quicker than a th350 or th400 of SIMILAR build type with similar converters. Mike V had a nasty 4L60E in his car and he ripped a 9.9x with it. He has since gone to a th350 and he's significantly faster. Don't remember exactly how fast he's gone now, it says 9.77 at 138 on ls1tech, he may be quicker. Picking up .2 on an N/A car that is already flying is astounding. That's like picking up .5 on a boosted car. There may be isolated incidents where someone puts in a 4L60E and goes faster, but I'd bet that it's more a case of that particular 4L60E with its gearing AND converter fit the combo better than the th350/400 combo that was in there prior.

Stock Eliminator and SS guys can run any GM production transmission they want to. They all run either Metric 200's, or th350's. If there was an advantage of having a 4L60E in there, those guys would have exploited it by now. I guarantee that plenty of them have probably tried it.