Well, I turned the engine over tonight to give it that once more check before slapping on the intake when I bent another push rod, even before turning it over I check to make sure the rocker nuts where set at the right foot lbs.
anyways its a 94 lt1 cam 450/460 lift witch i thought id be fine with,
so is it the cam or whats the deal, i set all the rocker nuts to 45 foot LBS of TQ, like it said in the book, do i need to set a back lash? in the book it said nothing about it, im thinking either i have the rockers set up wrong, or the cams got to much lift, but i checked with a feeler gage and im not maxing out my springs, so im lost for words also whats the timing cover bolts set to?
this is just so much fun i even managed to brake the cam retainer tq screw into the block, i plan on having one screw hold that plate in and forget about the one stuck in the block ~ im so frustrated....

 

What book tells you to tighten them down to 45ft lbs??? That is too much. You need to properly set the lash. When you install the cam each pushrod is in a different location. You can't just set them all the same to some generic torque value. That is why you are bending them. You are overtightening them and bottoming out the lifter and rocker nut. Follow the steps for valve lash as outlined in the LT1 can digest.

 

Yeah, I actually just finished setting the valve lash on mine tonight. I did it the "by the book" way, same as in the LT1 Cam Digest thread. Use that. You probably bottomed out the lifters and now when you turn it over there's no give at all except in the structure of the pushrod. Loosen them all up and do it following the instructions in Shifty's thread.

 

Dude sounds like the book was not right. Were you rotating the crank to the different positions and tighting down the nuts in a specific order or did you just tighten all of them at the same time?

 

What book has a torque spec for the rocker nut?

set to zero lash, then 1/2 turn more. if you actualy turned torqued any of the rocker nuts to 45 ft/lbs, its no wonder you broke ****.

 

This is probably nothing more then a misunderstanding. The book could state that the rocker studs get torqued to 45 ft/lb's, and having pull-out studs it would figure that the spec is for the nut on the rocker stud. What else could be it be for?

That 45 ft/lb spec is for a screw in rocker stud torque. Easy mistake to make.

RBob.

 

Yeah I can see that happening. Better luck next time around brother.