danny68ss Posted May 27, 2012 Report Share Posted May 27, 2012 I would like to run a comp.xr265hr 258/263 I know I have to change springs but do I need any other head modifications . Quote Link to comment Share on other sites More sharing options...
Silverad0 SS Posted May 27, 2012 Report Share Posted May 27, 2012 not positive, but pretty sure thats all you need Quote Link to comment Share on other sites More sharing options...
The_aSSet Posted May 27, 2012 Report Share Posted May 27, 2012 Pushrods Quote Link to comment Share on other sites More sharing options...
gmJake Posted May 27, 2012 Report Share Posted May 27, 2012 Pushrods For sure. http://www.silveradoss.com/forums/topic/76481-looking-for-74-hardened-pushrods/ Quote Link to comment Share on other sites More sharing options...
Silverad0 SS Posted May 27, 2012 Report Share Posted May 27, 2012 might as well while your there Quote Link to comment Share on other sites More sharing options...
danny68ss Posted May 27, 2012 Author Report Share Posted May 27, 2012 Ok thanks Quote Link to comment Share on other sites More sharing options...
danny68ss Posted May 27, 2012 Author Report Share Posted May 27, 2012 Anyone on here tried this cam I read about it in the cam guide sounds like a pretty good cam for a mostly stock truck. Quote Link to comment Share on other sites More sharing options...
LilEz02 Posted May 27, 2012 Report Share Posted May 27, 2012 (edited) i thought the 265hr was a 212/218 .522/.529 114LSA (i almost bought that cam but went with a 269hr custom) Edited May 27, 2012 by LilEz02 (see edit history) Quote Link to comment Share on other sites More sharing options...
danny68ss Posted May 28, 2012 Author Report Share Posted May 28, 2012 I'm not sure but the cam guide shows both and lists them as 265hr might just be a miss print sorry but I would like to try the one that is 558/563 Quote Link to comment Share on other sites More sharing options...
Fireman31 Posted May 29, 2012 Report Share Posted May 29, 2012 You may want to consider upgrading your fuel injectors as well..... Quote Link to comment Share on other sites More sharing options...
danny68ss Posted May 29, 2012 Author Report Share Posted May 29, 2012 What ones do you recommend Quote Link to comment Share on other sites More sharing options...
holdenhunt Posted June 9, 2012 Report Share Posted June 9, 2012 I am running that cam in a 5.3L truck. It is a good cam in that you dont loose any low end torque with that smaller duration and pulls well for a smaller cam. They have it in a low and high lift version, I would definitely recommend going with the higher lift version because it is a small enough cam as it is and Im sure you would wish you were running the higher lift version soon after if you went with the smaller one. Also I did springs and pushrods with it to. Hope this helps Quote Link to comment Share on other sites More sharing options...
danny68ss Posted June 10, 2012 Author Report Share Posted June 10, 2012 Ok thanks Quote Link to comment Share on other sites More sharing options...
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