Truck TH400 - Team Camaro Tech
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post #1 of 4 (permalink) Old Dec 27th, 00, 12:11 AM Thread Starter
 
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I've changed my mind. I'm going from a 402 to a 468. The problem is the transmission. I have a TH350 that's been upgraded but I'm afraid not enough to hold the 468.
I have a line on a TH400 that was behind a 427 truck engine but I don't know anything about it. For that matter, I don't know anything about transmissions.
Does anyone have any opinions on this trans and how it will work behind a 500 HP 468 in a 68 Camaro. I have to change the trans crossmember don't I?
Thanks
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post #2 of 4 (permalink) Old Dec 27th, 00, 06:58 AM
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Jim
 
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T400's are stout, it'll hold up no prob, if it's in good shape. The only real difference between a truck trans and a car trans is the calibration -- shift points. Put a shift kit in it, and either change the governer, or get a B&M kit so you can adjust it. The governer works like the mechanical advance in a distributor, and controls WOT shiftpoints. It's behind a round plate on the pass side of the trans. The truck trans will shift at real low rpm at WOT (even if you hold it in low gear).



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post #3 of 4 (permalink) Old Dec 27th, 00, 06:59 AM
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Jim
 
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And, yes, the T400 uses a different crossmember and a shorter driveshaft, they are readily available



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post #4 of 4 (permalink) Old Dec 27th, 00, 09:33 AM
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I have a truck TH400 in my 67. The tranny shop that built my tranny exhcanged the tail shaft for free. The truck has a bolt on yoke, while the passenger trannys have a slip on yoke. The truck TH400 has a stronger tail shaft and will leak less in the future, but you have to run a shorter drive shaft.
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