Best Trans for Street for BBC 496 410's Rear
01-04-2017, 12:50 PM
#1
Junior Member
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Thread Starter
Join Date: Jan 2017
Posts: 1
Best Trans for Street for BBC 496 410's Rear
Any recommendations for a full Manuel Automatic
Th-350/Th400?
10:1 BBC 496
580 HP 610 TQ
255-260@50 solid roller
410 rear.
In 3700 LB C10 Blazer.
Keeps breaking cases from Hughes and TCI-stock cases.
Th-350/Th400?
10:1 BBC 496
580 HP 610 TQ
255-260@50 solid roller
410 rear.
In 3700 LB C10 Blazer.
Keeps breaking cases from Hughes and TCI-stock cases.
12-10-2018, 07:15 PM
#3
Junior Member
SHOW GUEST
Join Date: Jan 2016
Posts: 1
Was the company you purchased the tranny from installing new cases or just welding the broken one?
Swiley383 is correct referring to misalignment or a bent component. I had a case with a misalignment and
it cracked the outer case. No matter what I did I couldn't make it work to my liking and finally replaced the case.
As far as what trans is correct for you? In a 3700 pound car, with 580hp I most definitely stick to a 3 speed.
A TH400 is built for heavier cars. If you decide to up the HP the TH400 can handle everything you can throw
at it. There are some good high-performance transmission shops out there and building a TH400 to handle 2500hp+
isn't unheard of. Good luck!
Swiley383 is correct referring to misalignment or a bent component. I had a case with a misalignment and
it cracked the outer case. No matter what I did I couldn't make it work to my liking and finally replaced the case.
As far as what trans is correct for you? In a 3700 pound car, with 580hp I most definitely stick to a 3 speed.
A TH400 is built for heavier cars. If you decide to up the HP the TH400 can handle everything you can throw
at it. There are some good high-performance transmission shops out there and building a TH400 to handle 2500hp+
isn't unheard of. Good luck!
