how much heavier is the th400 than the 350?
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Joined: Sep 2005
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From: lewisvilee NC
Car: 89 RS camaro
Engine: 454 swap in progress
Transmission: th400
Axle/Gears: 4.11
how much heavier is the th400 than the 350?
concerning my bbc swap i was wondering really how much heavier is the 400 versus the 350? everyone is suggesting that i use the stronger 400 than the 350 so i was wondering what the weight diff. is thanxs
Joined: Jan 2004
Posts: 1,761
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From: The "D"
Car: A Portly 85 Z28
Engine: 4.530 X 4.250 BBC
Transmission: under rated for this application
Axle/Gears: also under rated
Re: how much heavier is the th400 than the 350?
I believe the rotating assembly is 10# heavier.....35 #`s for the TH350. It depends on how much power you are after but I was skeptical too when I put the 350 in, with the proper set up and parts mine has been good aside from a case failure early this year.
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Sep 10, 2015 09:07 PM
