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#1
08-14-2010, 04:18 PM
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Powerglide swap options.....
Took the car out on the Interstate for the first time today & at 70 mph +, she turns way too many rpms. I believe the rear is a 3.73 ( haven't raised the rear to count rotations yet ). My question is .....would a TH350 be any better with highway speed rpm's versus this 2 speed Powerglide? I realize there is no OD in the TH350 though.
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#2
08-14-2010, 06:24 PM
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Final output on all non overdrive transmissions is 1:1. There's no difference at all between them. As said above an overdrive trans or a higher ratio rear end are you best options.
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1964 Malibu SS, now a LS1 and T56, Back halfed, rollbar, narrowed 9 inch, 4.11 gears and 31x16x15 Mickey SSR's on Weld wheels.
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#3
08-14-2010, 08:24 PM
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I've been playing with the option of putting a 700 tranny in my 70, but they are fairly pricey but give you the overdrive. You will have to get the drive shaft shortened also.
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Linear Mode
