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**Gregski** · 06-10-2018, 10:06 AM

OK, let me start off by saying there are Two Schools of Thought when it comes to proper pushrod length and valve geomety.

1. One says the rocker should leave a mark in the center of the valve stem.

if the mark is above horizontal center line (and closer to the intake manifold) then the pushrod is too short
if the mark is below the horizontal centerline (closer to the exhaust manifold) then the pushrod is too long

2. The other says no no no, that's not how you do it, because the rocker pivots on a fixed point therefore travels at an arch.

06-10-2018, 10:06 AM	#5449
Gregski Post Whore Join Date: Aug 2014 Location: Sacramento, CA Posts: 10,811	Re: Restoring Rusty OK, let me start off by saying there are Two Schools of Thought when it comes to proper pushrod length and valve geomety. 1. One says the rocker should leave a mark in the center of the valve stem. if the mark is above horizontal center line (and closer to the intake manifold) then the pushrod is too short if the mark is below the horizontal centerline (closer to the exhaust manifold) then the pushrod is too long 2. The other says no no no, that's not how you do it, because the rocker pivots on a fixed point therefore travels at an arch.