I have been researching the posts on the Commando 273 cam specs as I rebuild my 66 Commando 273. My engine guy is asking for the "full specs" for the Commando 4 bbl cam including "duration at 0.050". From the stuff below, can I glean all that I need?
From
66fs 's post on another thread:
The Commando cam works very well. We measured an original 67 Commando cam with 50,000 miles on it at Racer Brown's Cam Doctor's Analysis.
Intake:
110.4* center ATDC
202.8* duration at .050 Crank degrees
.405" net valve lift
Exhaust:
110.4* center BTDC
202* duration at .050 Crank degrees
.414" net valve lift
From other net-sources, what the usual "published specs" show is:
View attachment 1716368777