Can someone give me an opinion on this cam?

Can someone give me an opinion on this cam?

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By Missouri Mike - 14 Years Ago

Hey guys-

I have a cam that is supposedly "close to an Isky E-2" which from what I've read here lately could be any one of two or three different grinds. I don't care if it is or isn't close to an Isky E-2, I just need an idea of what I have:

Timing checked at .015 tappet travel

Intake-25-70

Exhaust-70-25

Lobe centers 112

Gross valve lift both I and E .427

Rocker ratio 1.43

Lash-.018

That's all the info I have on it. Any help would be much appreciated

Missouri Mike

By Pete 55Tbird - 14 Years Ago

Mike

Most cams today are speced at .050 lift so if you really meant .015 any answer will just be a WAG. Pete

bad spelling strikes again

By Hutz 292 - 14 Years Ago

I just got a new cam for my 292 and it is an Isky. F-300 is the Isky part number. It is a strong midrange cam 3000-6000 rpm range. 108 LC. I am not real good with justg reading the numbers but now that duration can be more important at times than lift. I found this cam at flantland racing products. When I called their tech department they were very familiar with these cams and had great info on them. Probably would not be a bad idea to give them a shout and pick their brain. Mine just showed up and I can't wait to get it in and let it rip. I am also excited for a rough idle. Can't wait and I will let you all know when it is in and running.

Robi

By Ted - 14 Years Ago

For the camshaft you have listed, the duration at 0.015” is 275° but the 0.015” value is not an industry standard for the ‘advertised’ duration. For a solid lifter camshaft, the advertised duration is typically measured at 0.020” which would make the aforementioned 275° value something less than that. Some quick math on the numbers you provided indicates that the camshaft is ground on 112½° lobe centerlines. All these numbers along with the lift would make this to be a mild camshaft and probably one with a reasonably smooth idle.

By Missouri Mike - 14 Years Ago

Thanks so much for your input!! Granted I don't know much but I have some idea if it's speced at 0.050 but 0.015....I become a lost ball in high weeds.

Yeah Pete it really was 0.015, lucky me, thanks Hutz and a special thanks to you Ted for taking the time to do the math (and for knowing what math to do).

From beautiful Washington, Mo. on the Missouri River regards to all Y blockers from

Missouri Mike

By Oldmics - 14 Years Ago

Tell us more about this camshaft w00t

Ford used .015 for some of there measurement specs in the day.

Is it ground on a Ford core? Is it brand new?

I have documented Cam Doctor measurements that indicate that you have what is very close (close enough to call it the same) to the Phase 2 Blower camshaft specs.

The measurement at .015 for the Phase 2 Blower cam that I measured is

IO - 24.2 IC- 67.5

EO - 64.7 EC- 17.1

At .015 the duration is 271.7 on Intake and 261.8 on Exhaust.

Teds correct in his 112.5 spec at .050

With the gross lift of your cam measuring at 427 using the 1.43 ratio,your actual cam lift is at .298 which is right on for the Phase 2 Blower cam specs.

As I said close enough to inquire about its pedigree-If its a Ford stick-I think its a Blower 2 version.

I can give you all of the .050 events if you like.

The 1.43 rocker spec is for the 56 engine and thats a bit wierd

I would be going with the 1.54 ratio for more power.

Now if thats the case-not that I have heard one in an engine but the one that I measured came from a gentleman who took it out of his engine after 1 days use.He claimed that it was too bumpy for his automatic equipted T Bird

Oldmics

By Missouri Mike - 14 Years Ago

Oldmics- This is a new cam ground on a new blank by Larry Wallace at, are you ready for this? Holman- Moody aka Holman Automotive. He called this their E-2 cam and said that was because it was close to Isky's E-2 cam but from what I've read here Isky changed a lot of the timing events through the years and continued to call it an E-2.

Everything I listed was the entire amount of info that came with the cam.

At one time I was considering sending this to John Mummert to run on the cam doctor because I just didn't know what I had as far as mild or wild.

And yes, I would interested in anything you could add.

Missouri Mike

Thanks again Ted

Mike

By Ted - 14 Years Ago

Mike. Now that you’ve mentioned your camshaft is a Holman & Moody grind, here are the specs for an older NOS ‘HM E-2’ that I had reverse engineered for someone else last year. This one doesn’t quite match yours on the 0.015” numbers.

Holman Moody camshaft with ‘hm E2’ on rear journal

Ramp lift	Intake	Exhaust
0.006”	48½° BTDC	90° BBDC
0.015”	19½° BTDC	63° BBDC
0.017”	17° BTDC	60.75° BBDC
0.019”	15° BTDC	58.75° BBDC
0.021”	13½° BTDC	57° BBDC
0.025”	10½° BTDC	54½° BBDC
0.050”	2° ATDC	42° BBDC
lobe lift	0.297”	0.295”
0.050”	50½° ABDC	5° ATDC
0.025”	63.75° ABDC	18° ATDC
0.021”	67½° ABDC	21° ATDC
0.019”	69½° ABDC	23° ATDC
0.017”	72° ABDC	25° ATDC
0.015”	75° ABDC	27½° ATDC
0.006”	114° ABDC	61½° ATDC

Dur at 0.019”	264½°	261.75°
Dur at 0.050”	228½°	227°

But by the same token, I’ve reverse engineered several of the stock 1957 C & D code cams and they too end up varying quite a bit which may explain why some of those engines ran better than others.