bigfootbob Posted April 30, 2006 Share Posted April 30, 2006 What year nailhead will bolt up with a 1975 Riviera auto trany?ThanksBob Link to comment Share on other sites More sharing options...
Fr. Buick Posted April 30, 2006 Share Posted April 30, 2006 The short and long answer is NONE. Nailheads have a unique bolt-pattern which limits your options. Remember too that there are two nailhead bolt-patters - the smaller one for the 264 and 322, and the larger one for 364, 401 and 425. And some issues on starter mount variations as well.An adapter is available, but that is for the 700R4, I believe. You can Google search and find it, I am sure.Doug Cook Link to comment Share on other sites More sharing options...
Guest carnuck Posted May 31, 2006 Share Posted May 31, 2006 Just a little question, but I have a TH400 from a '73 Jeep that has a Buick nailhead pattern (I think it's off the 364/401/425 series) but I'm not 100% sure. I have pics of it from when the motor was out. Link to comment Share on other sites More sharing options...
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