Can the stock Hydramatic 350 take 400 hp?
02-17-2005, 03:52 PM
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Racer
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Can the stock Hydramatic 350 take 400 hp?
I know the safe thing to do would be to move up to something like the 700r4 but that would blow my budget out of the water. So, can the stock tranny take this kind of power? What should I do in rebuilding it to make sure I don't have a "weak link" in there that will melt the tranny if I decide to lay down some rubber? 
02-17-2005, 04:32 PM
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Racer
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A 700r4 is pretty similar inside to a THM 350, as far as the amount of power they can handle. Do you have to rebuild it now, ie is it bad? If so put in a performance rebuild kit from TCI or whoever with more clutches, etc. Also and most importantly just put a really good external tranny cooler on and go to town. On the other hand if it is not bad then roll with it and the tranny cooler and save your money for a 700r4.
02-17-2005, 10:06 PM
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Originally Posted by steves_77vette
I know the safe thing to do would be to move up to something like the 700r4 but that would blow my budget out of the water. So, can the stock tranny take this kind of power? What should I do in rebuilding it to make sure I don't have a "weak link" in there that will melt the tranny if I decide to lay down some rubber?
With all that said, install a shiftkit (B&M or others) and hope for the best. You should be OK for a while.
Stephan
02-17-2005, 10:20 PM
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Thanks for the tips. I've got the Ron Sessions book on rebuilding and maintaing the THM 350. Good book by the way but man, there's a lot more info in there than I bargained for! 
The tranny was doing just fine before I started the frame off. I'm going through everything with a fine tooth comb now that it's easily accessible. The last thing I want is to do is get the drive train together and melt it the first time I decide to stretch it's legs.
Since this is all new to me, could you all be kind to provide some links to products you have referred to?
The tranny was doing just fine before I started the frame off. I'm going through everything with a fine tooth comb now that it's easily accessible. The last thing I want is to do is get the drive train together and melt it the first time I decide to stretch it's legs.Since this is all new to me, could you all be kind to provide some links to products you have referred to?