I'm debating on what trans to go with for my future BBC. I know it's pretty simple to swap in a th350, either by getting one with a 9" tailshaft or by getting a shaft from an 82 f-body. But what about a th400 how would I go about doing that swap? I think the 400 is about 1" longer, is cutting the shaft involved or is there another way ???

 

not too many ways around cutting the drive shaft, can't really relocate the engine forward.

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ICON Motorsports
1st & 3rd

 

Would moving the diff back 1" with adjustable LCA's be excessive? The tires would probably rub on the back of the fenders.

The driveshaft would have to be modified anyway since the 400 and 350 u-joints are different. You need a TH400 yoke on the front of the driveshaft.

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Follow my racing progress on Stephen's racing page
and check out the race car

87 IROC-Z Pro ET Bracket Race Car
383 stroker (carbed) with double hump cast iron heads and pump gas
454 Big Block almost ready for the 2001 racing season

Best results before the 383 blew up
Best ET on a time slip: 11.857 altitude corrected to 11.163
Best MPH on a time slip: 117.87 altitude corrected to 126.10
Altitude corrected rear wheel HP based on power to weight ratio: 476.5
Best 60 foot: 1.662

Racing at 3500 feet elevation but most race days it's over 5000 feet density altitude!
Member of the Calgary Drag Racing Association

87 IROC bracket car, 91 454SS daily driver, 95 Homebuilt Harley

 

Get the Hurst (or other) T400 adapter kit, then get a driveshaft cut and balanced with the correct u-joints on it. Anything else will probably just be problems.

Miles

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88 427 Camaro
12.18 @ 113mph 1.75 60ft

www.koolmeister.com

 

welp, i know what ya gotta do- my 88 formula had one in it- you need to put in a weld in cross member to mount the third rear end member to, plus you will have to cut that too. also, just get a new driveshaft made. going rate here is 200 bucks for a brand new MADE drive shaft with the best uni's

Steve