lithium4750 Posted March 19, 2006 Share Posted March 19, 2006 My 260 has a 280 block, 260 heads and 240 S.U. Carbs. Could I put a 280 cam in it as long as i upgraded the valve springs and rocker arms? What other modifications could I do that I could just pull from other Z's? Quote Link to comment Share on other sites More sharing options...
JMortensen Posted March 19, 2006 Share Posted March 19, 2006 The 240/260/280 cams are all the same size, as the heads are all interchangeable. The 260 has a slightly (very slightly) longer duration cam than the 280 head would have. Leave it alone unless you want to go with an aftermarket cam. If you decide to go bigger, which isn't a bad idea, you can run the stock springs until you get to .460 lift. Around .470 lift or so you need new valve stem seals. There's good info about all that stuff if you go down that road, just search and you will find it. Quote Link to comment Share on other sites More sharing options...
lithium4750 Posted March 19, 2006 Author Share Posted March 19, 2006 Thanks man, that clears up some things. Quote Link to comment Share on other sites More sharing options...
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