They would perform about the same. A good Mopar solid has as fast a rate of climb as a mild roller. Well close enough enyway. The roller has less stresses applied to it too. It is only when you start getting into more radical cams that the roller shoots ahead.mopar_mark wrote: If I had 2 mild cams with exactly the same profile, one roller the other solid....
But by then you are starting to get into the realms of massive spring pressures etc.
I would personally stick with a solid lifter unless I was building a radical engine with silly levels of power. Or intended only to drive on the street to the odd local event and not much more. I don't think these blocks were designed for big roller cams.
I think what we need here is a decision on final weight. If there is no ET limit (just want to go as fast as possible) then you have to decide how streetable it needs to be instead.
I wouldn't want a more radical engine in my car for instance. There are times when I need to drive 300miles from home. So that limits how "race" I can make mine. If i wanted to go 10s I would have to go lighter. Put the engine in a street rod or something.
