I have a 1994 2.2 LN2. Roller cam engine. It has a cam lift of about 500. I also have the LT1 lifter upgrade and 1.6 rockers. The head has been shaved but not extreme. I can still barely feel the indention on the back side of the head. I was getting some valve float so I changed to a comp cam spring. Still appearing to be floating so I shimmed them. Now I have started bending pushrods. My question is should I have them made shorter or stay stock length and just stronger? Thanks

best bet is to get a mength checker, you want the rocker sitting level to the back of it downa little while closed

Does it have coil bind?

That is a possibility IMO....

You might just be overtightening the rockers. When I first installed them on my 2.2 I tightened them wrong and bent a couple pushrods.





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Changing the deck height, the cam regrind and changing rocker arms will change the required length of the pushrod. Some of this can be adjusted out with an adjustable valve train, as with aftermarket rocker arm conversions. A pushrod length checker is the most accurate method of checking for the needed length.

When you changed to the 1.6:1 rocker arms, did you clearance the guide plates? The pushrod's center line (C/L) is closer to the rocker arm stud, on rocker arms with increased ratios.

Are you using both the guide plates and self-aligning rocker arms? If so they are working against each other.

Was the valve cover breather baffles clearanced for the rocker arms? Others on here didn't and was bending rocker arms till they clearanced them. If the pushrods that keep bending are the ones on the number 1 and number 4 cylinders, then you are probably hitting the breathers.

The lifter have a very tight tolerance for adjustment, be extremely careful doing the preload on these lifters.

I've found that aftermarket chromemoley pushrods are a good idea on these motors when using a regrind.

What Comp Cams springs did you install? What was the installed height? What is the seat pressure and open pressure? Wrong installed height/shimmed too much or too much seat pressure can cause a number of problems.