I recently changed from the comp cams 3 peice hardened steel pushrods to the CM trickflows and notices a little valvetrain noise go away. I initially did the change because I bent a few Pushrods and didnt want to risk that again. The old pushrods I took out after inspection revealed that almost all of them that a slight bow to them , it was unnoticable unless I rolled them on a flat surface. My spring pressure open is a little over 430 #s open and 165 #s closed. The Comp hardened steel ones worked fine with my previous springs for years (I did buy a new set though when I went to the nes springs to be safe). The bent pushrods had a little over 2000 miles on them. I think the valvetrain noise was from the pushrods flexing and rubbing in a few places.

 

not to jack the thread but i cant see making a new thread for basicly the same question

im doing a rebuild with a hotcam kit and comp R lifters what size/type of pushrods should i get?

 

You'll do fine with the comp steel 3 peice hardened ones, as long as you keep your open spring pressure at 350 or less.

 

I got the crane dual springs.... so I'll go chomemoly.

 

Your probably thinking about welded chrome-moly components like a-arms. There was some talk in this forum on that some time ago. Chrome-moly structures are as good as their welds.

Those of you running guideplates, make sure you get hardened PR's.

-Mindgame

 

So with a 236-242 cam, stroker, 1.6 rr's, and the fact I broke two pushrods last weekend, and bent/broke three last season, what should I order overnight for this weekends race?

 

if you want some badass custom to order (but they can get em out the door real quick if you need) try www.mantonpushrods.com
They can make you a pushrod thatll hold up the titanic if you want