about 1.65 rocker's

[EFLOWER]

I going to be buying a set of these monday and if I were to install a set of these on the g/n it would be like a bigger cam...right? I know when I did this on the small block I think the guy who did my heads told me I would be adding around .040 lift to the cam..like if the lift was .400 it now would be .440 I take it this is the same for the 3.8's ...Like always thanks guys for the help!

 

[KEVINS]

Net valve lift = Rocker Ratio X Lobe lift

I personally don't think they are worth the extra $$.. The heads don't seem to flow much better past .400 lift anyway..

ks

 

[Donald McMullin]

Even with the minimum flow increase above 0.400 lift, the 1.65 rockers increase the duration that the valves are open at or above 0.400 lift. This increased duration at this lift does not require an increase in duration at 0.050.

So given a specific cam, the increase in rocker ratio will increase the area under the valve open curve which should increase flow at a set upstream pressure.

It would be interesting to see a comparison with same cam setup.

Anyone else with more detailed info??

Deep Enough

Donald McMullin

 

[Two Lane]

???????????????? ttt ??????????????????