Push rod limitations

buzzinhalfdozen · 02-15-2010, 11:41 AM

You cannot determine pushrod needs based on lobe lift only. You need to consider lobe profile as well as the spring pressure, I didn't see that you were running guide plates, however assuming you are it would be normal to see some rubbing. I found at bleast on my setup that going to larger pushrods actually made more power, of course every combo is different. Joe

Wade_Owens · 02-15-2010, 12:06 PM

Ian, the marks you're seeing are normal with that diameter pushrod. no need for 3/8, if you are uncomfortable, get some .116 wall 5/16 to reduce the flex. a small amount weight added on this side of the rocker is not as big a deal. do not enlarge the opening unless you're going to use guide plates.

Wade

02-15-2010, 11:41 AM	#1
buzzinhalfdozen Senior Member Join Date: Sep 2006 Location: Bellevue Ohio Posts: 984 Likes: 0 Liked 11 Times in 8 Posts	Re: Push rod limitations You cannot determine pushrod needs based on lobe lift only. You need to consider lobe profile as well as the spring pressure, I didn't see that you were running guide plates, however assuming you are it would be normal to see some rubbing. I found at bleast on my setup that going to larger pushrods actually made more power, of course every combo is different. Joe __________________ Joe Buchanan SS/BX 3117

02-15-2010, 12:06 PM	#2
Wade_Owens Senior Member Join Date: Jul 2007 Posts: 578 Likes: 0 Liked 3 Times in 1 Post	Re: Push rod limitations Ian, the marks you're seeing are normal with that diameter pushrod. no need for 3/8, if you are uncomfortable, get some .116 wall 5/16 to reduce the flex. a small amount weight added on this side of the rocker is not as big a deal. do not enlarge the opening unless you're going to use guide plates. Wade

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