3/8/05

Mike I have a 69 Chevy Nova that had a 355 c.i small block, 12.5:1 compression motor in it. Car weight is 3000 lbs, I have a powerglide in it with the 1.82 gears and 4000 stall converter. Car ran 11.50's in quarter with 1.76 60's. I'm rebuilding the motor to a 383 c.i, 12.5:1 compression and was also thinking of changing the tranny gears to the 1.76. Would this gear change help me? Thanks, Jeff Wilson

Jeff,

The 1.82 planetary is originally out of a six cylinder powerglide unit it has pretty small gears, pins, bearings ect it’s not very strong. The 1.76 planetary is out of a V-8 application. The gears are much larger and stronger but the ratio difference is very slight, you probably won’t even notice. The big difference is that the 1.76 is much more difficult to break! Your new motor combo will have much more torque so this gear swap is a good idea!

Thanks,

Mike
Mike’s Transmission
Lancaster CA
(661) 723-0081

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To contact Mike Stewart email trannytech@dragracingonline.com