Chris, I hate getting into debates about the potential of the 200's, compared to 4L60's. EVERYTHING inside the 4L60 is larger, and stronger. About the only similiarity between the two units is the oil pump, vane type with hardened rings. Which transmission did GM use, and stick with for nearly every HD application less than 3/4 ton trucks, for over 20 years? GM tweaked and tweaked them, they are pretty darn tough units, and don't require nearly the aftermarket parts that the 200 does, so they are less expensive to build.
Downside of the 4L60's is that they are longer, wider, and no BOP bolt pattern. Some consider the 3.06 first gear a bit steep, and the drop to 2nd too great. I've had a few in my own cars and my customers who we've built them for have never complained about it?
I think that both you and Steve will be fine, as you don't drive your cars they way I do. I have over 1200 documented runs on my car in the past couple of years alone. My engine has broken EVERYTHING behind it, at least once, so spending a bunch of money and time on an OD just isn't anywhere in my future!.....Cliff
__________________
If you can read this, thank a teacher. If you can read this in English, thank a Veteran!
https://cliffshighperformance.com/
73 Ventura, SOLD 455, 3740lbs, 11.30's at 120mph, 1977 Pontiac Q-jet, HO intake, HEI, 10" converter, 3.42 gears, DOT's, 7.20's at 96mph and still WAY under the roll bar rule. Best ET to date 7.18 at 97MPH (1/8th mile),
|