got to the valves yesterday. i let my dad do the lash, but i think he did it wrong. he did it the way he used to on his older I,II,and III gen camaros. i told him its different now but he wanted to be arrogant. so ill tell you what he did. He tightend the rocker arm nut down JUST until the pushrod stopped being able to be turned. He turned it 1/4 turn more and that was it. i checked the pushrods today and noticed they were still turning after being tightend down. that seem right to you??

 

I don't think anyone tightens them until they no longer can turn. While there are a lot of different methods for adjusting the valve lash the idea is the same: Find zero lash, meaning remove all clearance between the pushrod and the lifter and rocker, then preload the lifter slightly. When I adjust them I actually move the pushrod up and down to find zero lash...I don't turn it at all. Then I add 1/4 - 1/2 turn to preload the lifter. I use the same method Rob has outlined on his page: http://shbox.com/1/4th_gen_tech2.html#adjust_valves

 

What does "JUST" mean?

I use this method but when I feel the slightest bit of resistance I stop and that is 0 lash. I then go another 1/8 turn. If I tried, I could turn some of those a good 1/2 turn by hand if I tried hard enough.

 

JUST means exactly what you just described

 

Your dad's method is good enough. There won't be a problem. Valves are adjusted on an LT1 just like an other SBC before it.

 

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Till you get to the LS platform. Which is quite nice to do.. When you do those you just torque them to the 22FTLBS.

But up till then, the way he did it should be fine. I always liked to do the engine running method myself though.

 

If this thread was about LSX engines, it would have been covered.

 

This was the proper method many years ago BUT you have to have the feel for it. It's not that the push rod stops turning, it's the feeling of slight resistance. I've found that by lifting the rocker off the push rod is easer and when you get to the point that you have no more movement between the rocker and the push rod you've found 0 lash. it's a no brainer but I'm sure some one has messed up doing it this way also.