I have an Isky sheet for the Hardface Overlay cams.  There are only 4 cams listed on this sheet.  Not sure of the date, but it does say "including '58 models".  The E-2 timing is 17-59, 63-13.  The standard '57 cam was 18-58, 66-10.  kAs you said, very similar.

John - "The Hoosier Hurricane"

Seems we are both on the same quest.

I too am seeking a 57/56 Isky catologue to see what cams were availiable and the timing sequences.

I do have one question in reference to how "service parts" are labeled.

In the other post you made reference to camshafts designated as a B7AE part number as opposed to the B7A prefix normally associated with parts.

What does the "AE" designation stand for?

After rereading the Popular Hot Rodding article about Isky offering the B7A 6250-C cam as a service part-I question if that is actually true.

Reason for my doubts is because ALL of those B7A 6250-C cams that I have encountered are ground on Ford identified camshaft billets.

Would Ford have sent Isky blank Ford identified billets to grind there service parts on?

Timing events on all of these sticks would differ due to Ford using S.A.E. measurement reference points and Isky using his .050 reference that he pioneered.

The 285 H.P. engine is listed in the 1957 Ford brochure as an availiable engine option

Oldmics

The 1958 Isky catalog specs the E2 cam at 256/256 @ .430".  This certainly doesn't match the Ford specs on the 290 or 302 deg cams used in the blower engine.  It does appear to represent the baseline 1957 Ford B7A-6250-B 312 245/270 hp cam though.

I realize Isky did change camshaft timing events through certain years yet retain the same identifier, which is why I would like to see what is in their 1957 catalog.

There is also an article on the 292 engine in Popular Hot Rodding Aug 1965 that discusses the Isky E2 cam and the 312 285 hp engine:

Doesn't make sense if the E2 cam duration/lift appear to represent the 312 245/270 hp cam.  Maybe the same duration and lift, just the timing events were ground differently?

I started a new thread on this subject to reflect the different subject matter over the previous one titled "I need help identfying the intake".

Regards,

Dennis