Rocker Arm Ratio

Dave Noll · 12-25-2013, 11:53 PM

In your example, you used a SBC with .410 net lift & I assume thats what the spec sheet calls for @ the valve. If so, why is there a slippery slope with changing pushrod length to get .418 lift @ the valve. Its over spec. I understand whats being said about different angles affecting lift. Was this some older school stuff trying to get more from the stock rocker before the rollers were legal ? Just asking.

12-25-2013, 11:53 PM	#26
Dave Noll Senior Member Join Date: Nov 2007 Location: Div. 6, Eastern, WA Posts: 710 Likes: 2,681 Liked 240 Times in 112 Posts	Re: Rocker Arm Ratio In your example, you used a SBC with .410 net lift & I assume thats what the spec sheet calls for @ the valve. If so, why is there a slippery slope with changing pushrod length to get .418 lift @ the valve. Its over spec. I understand whats being said about different angles affecting lift. Was this some older school stuff trying to get more from the stock rocker before the rollers were legal ? Just asking. __________________ Dave Noll, EF/S ,?/SA 6526

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