This means less rotating mass, but may also mean less ability to handle large hp/torque. The other thing is that its "new" tech, which means no more cast steel drums, and all aluminum and stamped steel drums inside. Two weak points that stand out in my mind are the OD clutch, which tends to burn (the "65" upgrade should take care of that) and the overrunning clutch that lives in the middle of the clutch drum will give you headaches if its slipping at all. This could be toned down by playing with the line pressure servo motor. It hits hard enough that under light acceleration, it will chirp the tires on 1-2 shift. I don't recommend against it, but when we put it in a case for a 98 K1500, it blew out the servo housing from the main trans case. There is a servo upgrade for the front band, which is a step above the Corvette piece. I built one of these for a 94 Blazer, and it did very well. The other advantage to this trans is the lower first gear ratio. The 4L60E can be retrofitted with better guts to make it a 4L65E. I haven't progressed enough with my project yet but still strongly considering this. Nobody came back with anything bad except the standard "Don't put a GM part in your Mopar". Somebody tell me something bad about this setup. Art says he has a customer in PA with one behind a 406 stroker that runs 11.80s and still pulls down 25 mpg on the freeway. The gear ratios are better than the 727 and it does not require trans tunnel surgery to fit. It's also lighter and doesn't have as much HP loss through the transmission. This does not include a new 8" longer driveshaft since the 200-4R is 8" shorter than a 727. He estimates total cost including converter and installation at about $3300. Talked to several tranny companies about it and finally contacted Art Carr at California Performance Transmissions last week. Rebate form and details available at /performance/offers.Here's a post of mine from a year ago along the same subject but using a 200-4R instead of the 700-R4: I've been thinking about a 200-4R behind a 360 magnum crate motor in a '69 Dart for the past week or so. These parts are designed and intended for use in vehicles operated exclusively for competition: in racing or organized competition on courses separate from public streets or highways. Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance parts that are emissions-related may not meet U.S., Canadian, and state and provincial laws and regulations relating to motor-vehicle emissions. Allow 6 to 8 weeks for delivery of debit card. Rebates may be submitted over two invoices within 120 days of each other. See for details, applicable rebate amounts, and rebate form. Mail-in rebate offer not available with other offers. dealer or Chevrolet Performance Authorized Reseller. ††Must be purchased from a participating U.S. Warranty valid when all required components are installed on the same vehicle and purchased on one invoice. Coverage limited to defects in material and/or workmanship of the specific part only. Parts only when consumer repaired or installed in non-highway application. †Parts and labor warranty when installed by a GM Dealer or qualified installing independent Service Center (ISC) or when sold over the counter and REPAIRED by a GM Dealer or qualifying ISC.
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