Quote:
Originally Posted by Carousel72TRed
Does anybody know what the torque converter stall/lockup speed was on a stock TH 400 transmission? I've been told varying stall stall speeds from 1200-1800 rpm . My car came with factory AC so I believe the rear end ratio in my car is 3.23. I've also heard the peak torque rpm on a Pontiac 400 is around 2300 rpm so the best torque converter for this would be one that is around 2000-2400 rpm? Of course it may not do much good getting an aftermarket 2000-2400 rpm stall speed torque converter unless you have a limited slip or positraction rear end.
Carousel72TRed
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Converter stall and Lock up are two different things and TH400's do not have "Lock up".
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1978 Black & Gold T/A [complete 70 Ram Air III (carb to pan) PQ and 12 bolt], fully loaded, deluxe, WS6, T-Top car - 1972 Formula 455HO Ram Air numbers matching Julep Green - 1971 T/A 455, 320 CFM Eheads, RP cam, Doug's headers, Fuel injection, TKX 5 Spd. 12 Bolt 3.73, 4 wheel disc. All A/C cars
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