One thing when playing with EFI is that there is much more things what can go south when starting a new engine.
There is times when I can give my other nut in exchange to working roller lifters for Y-Block. 


Hyvinkää, FI

Yes I agree with you But I found out the hard way!

The main thing I say about brake in is to make sure the engine starts quickly when you make the first attempt, I have lost two Cams over the years  and both  Cams were in engines that had problems starting. One caused by a bad ignition module that would hit and miss the other buy a faulty new Carburetor.  

according to local cam grinder,the worst year for cam problems in canada was 1956
cams made in 55. his comments was end of the day production wher left without washing after parkerizing which afected lobes on1 end. eventually that was corrected. i have several good cores from 57 engines .
does any members know how to id when and where cams wher procesed.
another cam grinder who specializes in cummins eng. cams for dodge trucks gets his cores cast in the us to his specs,claiming most replacement cam blanks are from china and poor quality. he also claimed a regrind 
is good bet as the core is proven.  seems even scrubey boys have the lions share of cam issues thes days.
  good stuff for users to comment on. my info is mostly hear say.

I'll bet the answer is "none"!
Every original from the factory Y Block I've torn down has had a bad cam with several badly worn lobes. Several years ago I went on a quest to find a good 1957 stock cam for a project and pulled several from junkyard engines...all were bad. I gave up. 



"FREE SAMPLE"

Thats the same question I asked in an earlier post but didn't get any reply..

What was engine break-in procedure in Ford's engine plant in back in the ages when the Y-Blocks were brand new? I think they didnt lose much cams during the sessions.


Hyvinkää, FI

That would be a ‘Yes’.

Lorena, Texas (South of Waco)

After running in the cam and lifters for 20-30 minutes @ 2000-2500 I change the oil, take the car to a secluded stretch of road and make five 3/4 throttle pulls in 2nd or 3rd gear (for a 4 speed) from 2000 RPM to 3500-4000 RPM in succession closing the throttle and coasting in between to seat the rings. Who needs a dyno!? lol


"FREE SAMPLE"

Thanks Ted.  Is that a common feature on dynos?



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