Greetings to all: In the Eickman book on P. 34, the specs under the B7A-6250-B cam,  .272 intake and .285 exhaust lobe lift is listed.  On P.33 the valve lift is listed correctly using 1.54 rockers minus .018 lash which is .400 intake and .420 exhaust valve lift. Looking at the information published by John Mummet posted by Y Block Billy earlier in this thread it shows .270 & .283 intake & exhaust lobe lift respectively.  I think John listed actual measurements so to be within .002 is close enough. The same table also shows 114* LSA. I have a very worn EDB cam that I measured about a hair over 113* LSA with it in V-blocks and a degree wheel on it. Picking out the 2 best lobes on my worn 57 cam agrees with the published lift. Also, the 57 Ford shop manual shows the same lobe lift. So I believe at least the above specs (lobe lift and LSA) are true to the above cam and the data at Oregon Cam.  The Eickman book P.34 also lists the valve timing events of our cam which agree with whats listed in the 57 shop manual.  I will see if I can get more info from Oregon Cam to pass on but they seem to know of the cam we are discussing.                  I hope not to confuse this post but addressing the the de-tuned cam B8A-6250-C used from 1958 on,  P.33 in the Eickman book doesn't list lobe lift. Rather, shown valve lift of .360.    However, doing the math in reverse using the 1.43 rockers, the lobe lift would work out to .264 and that's putting back in the .018 lash. I have personally degreed a  de-tuned cam purchased from John and it is .263 lobe lift.  I really hope this helps as I'm sometimes not the greatest explaining things in text.   JEFF..........



64F100 57FAIRLANE500

Jeff
Your right on the money.
That pesky lash thing always bites me in the ass.
Would be excellent of Oregon if they can build the original sticks.
Oldmics

Greetings to all: I finally received the cam from Oregon Cam Grinding 2 days ago that is to be a copy of the 1957 ''EDB"  part number B7A-6250-B cam shaft. After viewing the pedigree paper supplied with the cam and doing some basic checking of my own, it appears to be the read deal. With out splitting hairs it's with in 2 or 3* duration and .001 or .002 either way.  The only spec I can't verify is the 3* advance that is to be ground in because my engine block and crank is still in the machine shop. However, the folks at Oregon Cam are aware that this cam is not ground straight up. I found out about Oregon Cam from Tim McMaster's (The Y-Block Guy) web site so I trust it's a quality product.  When I'm able to start assembling the engine, I'll post the valve timing events then.  So, to all who are interested in this cam, it is available.  Hope this helps, JEFF............


64F100 57FAIRLANE500

Jeff: Nice job you've done!  The on going issue with the 1957 EDB camshaft apparently not being available, has been a source of annoyance to some for a long while.  On behalf of all those interested, thanks!  
Further info. Oregon Cam Grinding is at;  5913 NE.127th Ave. #200, Vancouver WA 98682  U.S.A
Ph. 360-256-7985    Fax 360-256-7465  e mail  orcam@pacifier.com


Paul