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R. Thorne · 09-01-2011, 11:08 AM

Be careful with different lenghth pushrods (upsetting valve train geometry and attending consequences). IHRA allows roller rockers, I think, and a used set of 1.5 may get you that additional lift without too much cost. They should also help with rocker deflection. Also, consider rocker arm studs with a generous radius to combat flex there. If you decide against roller rockers, there are certain things that can be done with stock rockers to improve their function. Ron.

09-01-2011, 11:08 AM	#3
R. Thorne Member Join Date: May 2009 Posts: 184 Likes: 80 Liked 107 Times in 35 Posts	Re: Longer push rods ? Be careful with different lenghth pushrods (upsetting valve train geometry and attending consequences). IHRA allows roller rockers, I think, and a used set of 1.5 may get you that additional lift without too much cost. They should also help with rocker deflection. Also, consider rocker arm studs with a generous radius to combat flex there. If you decide against roller rockers, there are certain things that can be done with stock rockers to improve their function. Ron.