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  • CR4 - Thread: 78 GMC Pickup Engine Conversion for Better Mileage
    A 700R4 or later version 4L6xx series is a decent investment with good value holding potential. Difference was that it had 2.76 gears in the differential instead of the usual 3.76 … You can churn a torque converter at low speeds only so long before it starts complaining. … performance chip, OEM style K&N filter, Air Raid intake tube, modified air intake sensor (knocked the BBQ …
  • CR4 - Thread: Infinitly Variable Transmission
    A 1990 Caprice 350 with 700R4 lockup and a much larger frontal area will ideally reach 25 … … on the drag strip when you put too high of a numerical rear gear in and find … … the required 'horsepower' (not torque) from a standstill (at the instant of zero speed but starting to … … might be interested in: Engine and Engine Component Repair Services, Torque Tubes and Torque Arms, Torque Sensors .
  • CR4 - Thread: Lockup torque converter for a TH400?
    … it would be nearly impossible to hook up with a 3.73 or 4.10 gears hehehehe. You could also use a 700R4 as it was built on the th350 case and almost all … B&M offers two different kits to lock up the converter at a preset speed that is able … You might be interested in: Torque Tubes and Torque Arms, Torque Sensors , Frequency-to-Voltage Converter Chips .
  • CR4 - Thread: Looking for engine bellhousing bolt pattern blueprints
    Fords E4OD and 4R100 are physically the same transmissions but the 4R100 has added speed sensors so technically you are right. Given the gearing of my 99 F250 super duty 80 MPH in drive is ~3500 RPM which … Real cheep right from the junkyard and adaptors are very cheep for the 700R4 .