Comp Cam 401 Nailhead

G

Grhopperass

Member
I have a comp Cam whith the following specs.
Rocker Ratio 1.6
Valve lift on intake / exhaust .464 , duration 288
Cam lift .290
Is this too radical for a street machine?
I've read somewhere that these cams are hard on Nailheads.
Is there any truth to this.
Your guidance and thoughts are greatly appreciated.
IF
 
IF, is duration advertised or @.050"??? More than likely with stock rockers your actual lift at the valve will be closer to .420"-.425" give or take.


Tom T.
 
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