Guest Recian Posted August 5, 2011 Share Posted August 5, 2011 I was wondering if the series2 3800 (04-06) exhaust manifolds will fit on the 88-90 (pre-series1) reatta 3800 Link to comment Share on other sites More sharing options...
Buicks4Life Posted August 6, 2011 Share Posted August 6, 2011 you could look into it more but having had both gaskets in my hand (I own a supercharged GS) the spacing is considerable difference. I was looking into it to see if I could use parts from it on my Reatta. Link to comment Share on other sites More sharing options...
jonlabree Posted August 6, 2011 Share Posted August 6, 2011 No, The bolt pattern is competly different and the port spacing is not the same. Link to comment Share on other sites More sharing options...
Guest Recian Posted August 7, 2011 Share Posted August 7, 2011 darn Link to comment Share on other sites More sharing options...
padgett Posted August 8, 2011 Share Posted August 8, 2011 Since the intake is ded, the heads are ded, and the cam is ded, the exhaust really does not matter.That said I have seen the exhaust collector restricted by a crude cut-out that can be improved with a dremel tool. Link to comment Share on other sites More sharing options...
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