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Re: turbo 400 swap by Phil Feinstein
Post New Message The TH400 was built for small block and big-block Chevy V8s. The only issue I can see is if you've managed to get a hold of a rare TH400 with a B-O-P bolt pattern (Buick-Olds-Pontiac)

There is a trans mounting point on the back of the housing right where the tailshaft meets the back of the main case. I recommend using the old motor mount, building a motor plate and adding a crossmember to use that mounting point on the trans. This takes the weight of the engine off the bellhousing (which is sort of what the mount on the old trans did) and will keep you from flexing the case of the tranny.

Your idea for making custom motor mounts sounds like it would work as well, but I can see it requiring more fabrication. If you have made a motor plate before, I don't doubt that your skills are up to the task. Making custom engine mounts would certainly make the job look and work cleaner.

I like the idea of the cooler and temp gauge. I'm not a big fan of the old coil in the radiator trick that's commonly used to cool a factory trans.

Just my.02; Hope that helps!
All Messages in ThreadAuthorDate
Post New MessageTurbo 400 swap Bill Gardne 10-31-05  
  Reply to MessageRe: turbo 400 swap Phil Feinstein 11-1-05  
  Reply to MessageRe: turbo 400 swap ron 11-1-05  
  Reply to MessageRe: turbo 400 swap krooser 1-22-06  
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