Re: Conversion of a ‘56 Ultramatic to a ‘55 400 & A Few Engine Rebuild Questions
Posted by Deven Vance On 2021/1/31 17:02:12
Quote:
HH56 wrote:
It sounds as if you are going for a bit more performance with your engine rebuild. As Riki says, the trans was NOT designed for high horsepower and to go farther, the trans turned out to be for all practical purposes the weak spot in the 55-6 Packard lines.
Im not going for an ultra performance rebuild, just a few extra horsepower. Definitely not a race car or anything, but able to keep up with highway traffic, although highway driving will be rare. I’m thinking 300 maximum, before the power steering, generator, etc is added. With just mild daily driving with the occasional quick get away, do you think it’d be decently reliable? I’m considering going the GM 700r4 route but at the same time I’d like to get the experience of rebuilding Ultramatics, and maybe one day become the “go-to” contact for rebuilding them. Thank you for all the info! Excited to hear back again
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