Can the TH350 be built to handle the 454? - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 08-03-2003, 06:25 AM Thread Starter
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Can the TH350 be built to handle the 454?

I have a '76 CJ5 with a 454BBC and a TH350. I'm about to rebuild the TH350, due to a worn forward/reverse clutch. My question to you guys is, can the TH350 be built to handle the power and torque of the 454? In a perfect world, I would be able to run a TH400 or a TH700R4, but unfortunately, my CJ5 is just too short. My rear driveshaft is only about 12" long, and I don't want to shorten it further. Come to think of it....the TH400 is longer than the TH350 right?
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post #2 of (permalink) Old 08-03-2003, 08:18 AM
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Re: Can the TH350 be built to handle the 454?

Yes, guys use them in drag racing all the time behind nasty HP Big Blocks. The T-350 eats up alot less power than the T-400 and weighs less too. Heck, powerglides are more popular in drag racing than the 'three speeds' and they hold up, but all need serious mods to live behind big block power.

I'm not sure about the differences in stress between Drag Racing and trail riding, but with 800 horsepower hitting 14" wide slicks against a concrete launching pad with a trans brake at 4000 rpm, I'd think some trail riding would be ok .
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