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After reading through the valve spring selection thread, I thought I would start this thread to get some insight to thoughts on cam lobe selection. Based on my own most recent quest for selecting lobes, I found a few actual profiles that would fit my constraints.

For my own example, I was looking for a lobe that had at over .400 lobe lift with about 242 duration @ .050. This limited me to only a few lobe profiles that would fit those constraints(Comp Cams RT,TK, High tech 420).

So, for a given engine, RB,SB,Hemi, does anyone have a prefered profile to use as a good ballance for power and valve train durability ? More specifically limited street driving ?

Allan G.



You can't sum up all those engines under one catagory. Just going from a non offset rocker to an offset rocker in a sb can cause problems so it would help to know exactly what engine your working with, rocker ratio, rpm range, valve sizes or weights, and the rest of the engine build including the car and intended purpose.

Brian

Brian Hafliger