Okay , I know everyone is on the same ground with the GM guideplates that should be used in the LTx motors. Now, I looked at the guide plates after taking the heads because of a minor piston surgery. The exhaust valves side of the guideplate has wear marks, on one side only ( I will get pics today to verify exhaust or intake). On the Comp Cams guide plates there is even where on the guide plates, on in/ex . When I say where, I mean a small mark where you can see the pushrod was touching slightly.
What I would like to know, does anyone have pics of a stock valvetrain on a LT1 motor, to show how the rocker arms look on the heads. I noticed that when the Comp Cams guideplates were on, some on the rockers looked **** eyed off to the side a little. With the GM guide plates, all of them were pretty much dead on straight. I can see the geometry question here. But I want to see if maybe the factory has the valvetrain set up where it is normal to be off a little.
Reason I say this, is the valve stem tips had all of the markings from the roller rockers dead nuts in the center. I didnt have the GM guideplates on for any measureable amount of time, maybe a few minutes idleing.
I hope you understand what I am trying to do. I am just trying to verify that the GM guideplates are right, or they are correcting a problem that we think is wrong. GM may have had it set up this way.
So, if there are any pics of a factory LT1 motor rocker arm algnement, please post it, so we can see if this really is a issue.
LPE/DRM/MTI CNC etc etc all use Comp Cams style guideplates when you buy them, not the GM ones we are using that "alignes" the rockers.

 

"Okay , I know everyone is on the same ground...."
Everyone? Hardly.

I know of NO guideplate that will give 'spot on' accurate alignment on all valves, of both heads, other than adjustables. It WILL get you in the 'ballpark', and for most that is close enuf, I believe.

 

Arnie, why do you have to be this way. No ****, there is no spot on guide plate unless you get a custom plate. Read the post knucklhead.

 

Knucklhead... I'M the... knucklhead (sic)? Well, let us take your post phrase by phrase, shall we? BTW, it be 'adjustables', not 'custom'.
Hold it! Ah, I.... oh wait, already addressed that sentence above. Please read it.
I thot I corrected/answered that comment as well. Again, please read it. Oh, a little clarification regarding above post of mine.... It WILL get you in the 'ballpark', and for most that is close enuf... By 'It' I was referring to the GM plate. Sorry for the oversight.
After reading the third quoted phrase/sentence, and then the above, I'm not convinced YOU understand what you are trying to do. Wait, you're gonna reveal that now.
Not just more entertaining, I believe 'Yogi' makes more sense. The more I reread your post, the more confused I get. For that reason probably should not have attempted to respond. Well, at least it is a bump. Maybe someone else can decipher it.
Keep working at it, you might get it. I'M the knucklhead? BTW, that is mispelled as well. Believe it or not.... was not attempting to be sarcastic in my first post. Just atttempting to improve the accuracy of your post, that was all. Nah, no hard feelings, I've been labeled worse, questionable accuracy of such notwithstanding.

EDIT: BTW, Read your post, before it was edited at 6:28 PM.

 

Wow, this is a post gone wrong.

Maybe I'm not remembering right, but aren't you supposed to install the GM guideplates with the "05" facing upwards, since the pushrod slots are shifted in one direction on the guideplate? Did you do that?

I have pics of the valvetrain in my website.

Dan

 

Arnie Arnie Arnie, lighten up.