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7423 · 11-23-2011, 03:44 PM

[QUOTE=Alan Roehrich;295110]That rule changed. They removed : Aftermarket rocker arm must be identical to OEM so there is no longer a written rule saying the OEM ratio must be retained. The part listed in red above is what required the OEM ratio.

The legal rocker ratio for your combo has always been listed on the engine blueprint sheets. The VERY unclear new rule states you may now use roller rockers. Doesn't say you may now change your rocker ratio.

I think the only thing this new rule has created is more drama...................

11-23-2011, 03:44 PM	#72
7423 Senior Member Join Date: Dec 2006 Posts: 639 Likes: 0 Liked 1 Time in 1 Post	Re: 2012 Rules Are Posted [QUOTE=Alan Roehrich;295110]That rule changed. They removed : Aftermarket rocker arm must be identical to OEM so there is no longer a written rule saying the OEM ratio must be retained. The part listed in red above is what required the OEM ratio. The legal rocker ratio for your combo has always been listed on the engine blueprint sheets. The VERY unclear new rule states you may now use roller rockers. Doesn't say you may now change your rocker ratio. I think the only thing this new rule has created is more drama...................