cjp69 Posted March 11, 2015 Share Posted March 11, 2015 NOT MINEhttps://miami.craigslist.org/brw/pts/4926783069.htmlSelling my rare headers that fit a 1964 buick Riviera with a 425 nailhead engine. May fit other 425 cars also... Brand new never used. $225 cash please call 954 797 7997 phone calls only please! LETS MAKE A DEAL! Link to comment Share on other sites More sharing options...
96roadmaster Posted March 17, 2015 Share Posted March 17, 2015 Can anyone confirm what kind of power gains they add? Link to comment Share on other sites More sharing options...
RivNut Posted March 20, 2015 Share Posted March 20, 2015 The guys over on the V8Buick.com forum; the ones on " Da'Nailhead" group who only mess with the engines, say that ported stock manifolds are just as good as headers plus they don't leak, rust out, chrome doesn't peal, and they don't cost you an arm and a leg. No real power gains from a street type header. Link to comment Share on other sites More sharing options...
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