FE Power Forums

FE Power Forums => FE Technical Forum => Topic started by: 440sixpack on November 28, 2018, 11:20:31 PM

Title: Cam Degreeing
Post by: 440sixpack on November 28, 2018, 11:20:31 PM
I've been rebuilding my own  engines for  35 years, with excellent success.   but I must admit degreeing a cam is not a clear science to me and I'm intimidated by it.   I have the tools to do it but I'm so unsure of my results I always default back to the standard bosses and forget it.

So I have a couple questions on the 428 in my highboy I'm freshening up.   first, my timing set says + 4 degrees, - 4 degrees or standard.   but the keyways  are WAY more than 4 degrees on the circle,  even if you account for the cam turning half speed .  or at least so it seems, how can this be ?

Second, I have more compression than I'd like, and my new hydraulic roller cam is a little more cam than I'd prefer,   if I retarded it the 4 degrees would that help or hurt me ?  I don't care about  enhanced performance I just want a good running engine.