Isky 404A cam - Harley Davidson grind?

Tim Ayers said:
Harleys get some of there sound from that but most from their unique way the cylinders fire one right after other. Almost like a radial engine would vs. A true twin.
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They don't fire one after another but they are not 360 degrees apart. As said earlier the single pin will not allow this as when one piston is at the top on compression the other is almost at the top on exhaust.
 
I would roll that whole engine stand complete with the flathead, blower, and carbs, into my living room, just to look at it every day. ;)
OOPS, never mind, I forgot I am married. :( You did good Jason. :cool:
 
Frank Miller said:
They don't fire one after another but they are not 360 degrees apart. As said earlier the single pin will not allow this as when one piston is at the top on compression the other is almost at the top on exhaust.
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Frank

Thanks for the clarification. You are right. It's something like 315 degrees apart causing that pop-pop sound. Must have had a brain hiccup.

Tim
 
That is some collection of stuff right there!!
Is that four boxes of tipped radius lifters? I see the slots in the front three packs?
Question for Pete here,
those lifters the "tipped" one's, you've stated in earlier posts that welding on the lifters is a big no no. And that the needed length should be added to the valve stem. I've seen in old books and magazines pics of these lifters, with that added on pad on the top. Were these pads welded on? Or some other process? Did these lifters have issues?
Look forward to you thoughts on this.
Thanks,
Martin.
Sorry for hijack, but I feel relevant.
 
scooder said:
That is some collection of stuff right there!!
Is that four boxes of tipped radius lifters? I see the slots in the front three packs?
Question for Pete here,
those lifters the "tipped" one's, you've stated in earlier posts that welding on the lifters is a big no no. And that the needed length should be added to the valve stem. I've seen in old books and magazines pics of these lifters, with that added on pad on the top. Were these pads welded on? Or some other process? Did these lifters have issues?
Look forward to you thoughts on this.
Thanks,
Martin.
Sorry for hijack, but I feel relevant.
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The buttons were silver soldered on. They were put on as a convience for back yard engine builders so they wouldn't have to do either that or weld the valve stems at home.
Overall they worked good. I did see a few that showed sagging on the top due to loss of heat treat during soldering process..
I wouldn't be afraid to run lifters with buttons. We have much better springs now.
 
Ed Iskendarians 404A Constant Acceleration Camshaft is actually a copy of a #2 Offy Grind which is actually a copy of a Miller Grind.
If you get a chance ask Ed himself and he will tell you the story like he told me.
 
I run the 404A in my Dragster. I made the Radius Lifters from an old set of Hollow Johnson Lifters.
I actually show them and the Entire engine build up in the Video "Fullrace Flathead".
 
Very good cam , need to watch spring pressure .The duel springs can give up #125 pressure ,hard on cam ware.
 
I believe Isky's 404 grinds are an adaptation of Ed Winfield's number 4 profile for Offenhauser 4-cylinder engines. Offenhauser engines used radius lifters.
Potvin called his version "Eliminator", and uses flat lifters.
 
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Hi all; I see a Power Master starter there. They engage front to back, the opposite of a Ford stocker. So the ring gear bevel is for the stock type stater. Does the ring gear need to be flipped or rebeveled for the Power Master type?? Newc
 
Hi Jason , i built a 304 ci with a 404-a cam flathead and after 20k miles its still running!
Best cam i ever used .
Better than a potvin 425 eliminator.
I can compare as i built another 304 ci
With an eliminator cam .

Do you sell your spare radius lifters ?
I could use them
If so , drop me an pm

Michael
 
Just a quick FYI Isky made the Radius Lifters from Original Ford Lifters.
There is enough material on Originals to do it. Be careful of lifters that may have been reground on their bottoms before making a new set of Radius Lifters.
I made mine from an old set of Johnson Adjustable's to have the ease of lash adjustment.
 
My boss has a flathead they just torn down and it has a set of lifters just like in this picture. He wants to know where a person could get a set of the pins/retainers for the lifters as well as other valve train parts.

Also on the cam it has Iskandarian Rack then 404 A. On the shaft there is a CWC but nothing else - where could I get information about the cam etc.

Thank you



Jason in TX said:
In order to get the cam, I had to buy a few other things.... :)

ItalmeccanicaBlownFlathead01_zps2soh17ei.jpg


inside the engine

IMG_9820_zps0gvwo4nv.jpg
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