do you need to change pushrod lengh...
And I'm sorry, but I'd prefer to get my valvetrain geometry dead-on. "Getting it close" won't cut it in my engine, especially in a part that can have a drastic effect on valvetrain performance and longevity.
But hey, to each his own I suppose.
If your valvetrain geometry calculations were fail proof then there would be no need for pushrod length checkers OR the sharpie method. Why would you need a sharpie if you can calculate it perfectly every time? You wouldn't, you'd have no need to check, ever.
Spend the few bucks, get the checker, be certain. That sounds pretty simple to me.
An adjustable pushrod is a vital assembly tool.
Launching!
Joined: May 2007
Posts: 216
Likes: 0
From: knoxville tn
its just the way i learned to do it. this guy is not running an exotic setup like ls7 lifters and all that bullshit. my last engine i built had dart 230 heads and a lunati 4/7 swap small base solid roller cam with 670 lift. i use .015 head gaskets and it ran great for 3 yrs. i used my way of calculating the pushrod length. then checked it with the sharpie method and it was perfect. i only have 3 more ase's till im a master tech. just go ahead and try to make me look stupid.
Launching!
Joined: May 2007
Posts: 216
Likes: 0
From: knoxville tn
here you go. i ran dialed in at a 7.07 and ran 7.072 at 98mph. but im stupid. what does all you guys cars run btw.
http://videos.streetfire.net/video/d...-a-2_98936.htm
http://videos.streetfire.net/video/d...-a-2_98936.htm
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Verdad Gallardo its just the way i learned to do it. this guy is not running an exotic setup like ls7 lifters and all that bullshit. my last engine i built had dart 230 heads and a lunati 4/7 swap small base solid roller cam with 670 lift. i use .015 head gaskets and it ran great for 3 yrs. i used my way of calculating the pushrod length. then checked it with the sharpie method and it was perfect. i only have 3 more ase's till im a master tech. just go ahead and try to make me look stupid.
Lol "The following is a method of verifying proper valve train geometry. After you have estimated the required pushrod length using a Lunati Pushrod Length Checker, use this method to verify that the valve train geometry is correct (using the rockers you are using in your engine.)"
from your link: http://www.lunatipower.com/tech/valv...ngeometry.aspx
"the following is a method of verifying proper valve train geometry. After you have estimated the required pushrod length using a lunati pushrod length checker, use this method to verify that the valve train geometry is correct (using the rockers you are using in your engine.)"
"the following is a method of verifying proper valve train geometry. After you have estimated the required pushrod length using a lunati pushrod length checker, use this method to verify that the valve train geometry is correct (using the rockers you are using in your engine.)"
Launching!
Joined: May 2007
Posts: 216
Likes: 0
From: knoxville tn
i know it says that. but if you have an idea of what size you need to start with and its laying on the bench then throw it on and check it. thats what im saying. if you have no clue then by all means go buy a pushrod checker or get an engine builder that knows what hes doing. thats all im saying.
the only way this works is if you just happen to have different size pushrods laying around on your work bench. Most people doing a cam and valvetrain swap are doing this at their house and would rather buy a cheap part that can tell them right away what size pushrods they need right then
