newbie question
newbie question iv got the MTI X1 cam and 918s and titianum retainers siting in my closet, and was just told i dont need hardend pushrods is this true?
i just dont want to hurt my new toy
i just dont want to hurt my new toy
TECH Enthusiast
Joined: Feb 2003
Posts: 596
Likes: 1
From: Austin, TX
If for some reason, you were to miss a shift, bad enough to make a valve hit the piston, than that would break, instead of the pushrod, but the chances of that are kinda unlikley. I wouldnt worry about breaking a lifter either. I would, and always have, used hardend pushrods 
yes sir use the hardened push rods.and I thought that w/ the stiffer springs and bigger lift that the load increases on the push rod alot,that the stock rod wouldnt handle it.hell the stock rods bearly what thier doing now.my friend bends one every other week,then uses my old ones to fix it.
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Hardened ones for sure. One of my friends went from 3rd to 2nd in a bolt on car, and bent 9 of the 16 pushrods, one was like a freakin S !! Imagine if he had a cam with more power and lift... doh!
yup i broke one in half #8 intake, and bent 4 missing a shift.
Have my car back together now and have missed two shifts racing, and i just pulled my heads off yesterday and everything looks perfectly fine.
Nate
Have my car back together now and have missed two shifts racing, and i just pulled my heads off yesterday and everything looks perfectly fine.
Nate
more like double that 
TECH Senior Member
Joined: Mar 2004
Posts: 14,620
Likes: 17
From: BFE
First of all if you reuse stock rockers (non adjustable), then your stock p-rods are .03 too short with aftermarket smaller base circle, so your valvetrain noise will increase, because you geometry is out of whack (stock prod length is 7.38)
2nd of all they will flex and rob you power for sure.
So why not do it right?
2nd of all they will flex and rob you power for sure.
So why not do it right?