Valve train geometry

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Stock pushrod length- 9.130". It has been published that if using Chevy lifters, the pushrod length is 9.290” as a starting point. However, caution must be used if Chevy lifters are going to be tried in a Pontiac engine because the oil band is in a different location. This could effect oiling. There are aftermarket lifters advertised for use in both Chevy and Pontiac engines. These should also be checked but the assumption is that the oil band is correctly located for both applications.
 
Stock pushrod length- 9.130". It has been published that if using Chevy lifters, the pushrod length is 9.290” as a starting point. However, caution must be used if Chevy lifters are going to be tried in a Pontiac engine because the oil band is in a different location. This could effect oiling. There are aftermarket lifters advertised for use in both Chevy and Pontiac engines. These should also be checked but the assumption is that the oil band is correctly located for both applications.
  
==Things that can effect pushrod length==
+
==Things that can affect pushrod length==
 
A large number of variables are involved in determining the correct length pushrod for your application. Pushrod length is affected by any of the following:  
 
A large number of variables are involved in determining the correct length pushrod for your application. Pushrod length is affected by any of the following:  
  
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Miller uses a MID-LIFT G-TooL to measure for geometry. It is quite different from the other devices on the market, like from Comp Cams and others that are used to estimate pushrod length.
 
Miller uses a MID-LIFT G-TooL to measure for geometry. It is quite different from the other devices on the market, like from Comp Cams and others that are used to estimate pushrod length.
 
==Resources==
 
{{Note1}}Also see wiki page [http://www.crankshaftcoalition.com/wiki/Valve_train_points_to_check '''Valve train points to check''']
 
*Circle track article ''[http://www.circletrack.com/techarticles/ctrp_0611_rocker_arm_valvetrain_geometry/viewall.html Rocker Arm Geometry And Valvetrain Alignment], A Detailed Explanation Of Valvetrain Alignment Goals'' by Bob Bolles, from February, 2009 CT mag
 
*Lunati article [http://www.lunatipower.com/Tech/Valvetrain/HowToVerifyValvetrainGeometry.aspx How to verify valve train geometry]
 
*Wiki page [http://www.crankshaftcoalition.com/wiki/Category:Adjust_valves Adjust valves]<br><br><br><br><br>
 
 
[[Category:Engine]]
 
[[Category:Camshaft]]
 
[[Category:Cylinder head]]
 
 
{{develop1}}
 

Latest revision as of 08:47, 3 January 2025

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