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-   -   Help ID this flathead Ford V8 "ELIMINATOR" camshaft (https://www.fordbarn.com/forum/showthread.php?t=86449)

Chris 10-17-2012 04:44 PM
Help ID this flathead Ford V8 "ELIMINATOR" camshaft
 

A buddy of mine dropped this by my work today, wants me to sell it for him...only I have no idea what it is. Kinnda weird. I think it is an 8BA as it has no slot up front for the distributor but has a bolt on front distributor drive gear. The front and center bearing surfaces have an oiling grove cut into them. and looks like it was done with a cut off wheel, and the rear oilng grove has had the ends blocked off by welding. I would assume for high oil pressure?

It appears to be a new billet, and has ELIMINATOR stamped into the snout. Can anyone ID this thing...or even better, got any specs?

http://i307.photobucket.com/albums/n...01/photo14.jpg

http://i307.photobucket.com/albums/n...01/photo15.jpg

http://i307.photobucket.com/albums/n...01/photo16.jpg

http://i307.photobucket.com/albums/n...01/photo17.jpg

Tim Ayers 10-17-2012 09:23 PM
Re: Help ID this flathead Ford V8 "ELIMINATOR" camshaft
 

Chris:

I sent you a PM on this. This is an original Potvin Eliminator ground on a '32 cam.

Thanks.

Tim

Kahuna 10-18-2012 03:18 PM
Re: Help ID this flathead Ford V8 "ELIMINATOR" camshaft
 

Great Cam

Walt Dupont--Me. 10-18-2012 07:20 PM
Re: Help ID this flathead Ford V8 "ELIMINATOR" camshaft
 

Quote:
Originally Posted by Tim Ayers (Post 518769)
Chris:

I sent you a PM on this. This is an original Potvin Eliminator ground on a '32 cam.

Thanks.

Tim
Tim, why do say it a 32 core? it has the gear on front for the 8BA dist. I don't know why someone blocked that groove in the rear journal, there is no oil pressure there there on that rear journal, the only way that rear bearing gets oil is what runs in from the back gears and there is no pressure back there. Walt

Walt Dupont--Me. 10-18-2012 07:24 PM
Re: Help ID this flathead Ford V8 "ELIMINATOR" camshaft
 

Sorry Tim, I read the first post again and see that it has a bolt on front dist gear. Walt

Ol' Ron 10-18-2012 07:33 PM
Re: Help ID this flathead Ford V8 "ELIMINATOR" camshaft
 

These were modified this way by boring out the front and pressing in a plug then turning it down for the 8BA front distributoe, I've done several. Same with the bolt on gear, but I've never done that.

Tim Ayers 10-18-2012 07:54 PM
Re: Help ID this flathead Ford V8 "ELIMINATOR" camshaft
 

Quote:
Originally Posted by Walt Dupont--Me. (Post 519219)
Sorry Tim, I read the first post again and see that it has a bolt on front dist gear. Walt
No problem. I was looking at '32 cam at Hershey a few days ago, had the same tell tale "oil grooves" in the journals.

Also, the machining marks in the snout.

bluardun 10-18-2012 09:54 PM
Re: Help ID this flathead Ford V8 "ELIMINATOR" camshaft
 

The post just below inquires about .010 stamped on the remanf. tag three time. I notice this cam is stamped with .010.
Could this be the area where the cam bearing ride was cut .010. because it is a '32 cam?
Most of the '32 motors didn't have cam "bearings as the later engines.
Interesting ????????

JWL 10-19-2012 05:48 AM
Re: Help ID this flathead Ford V8 "ELIMINATOR" camshaft
 

Yes, the journal diameters are probably .010 undersize and will require the appropriate cam bearings. The rear oil groove is blocked off when the rear cam bearing has been pressurized which will cause oil to spray out on the crankshaft and rob mucho power.

Pete 10-19-2012 02:03 PM
Re: Help ID this flathead Ford V8 "ELIMINATOR" camshaft
 

...
Quote:
Originally Posted by Chris (Post 518636)
A buddy of mine dropped this by my work today, wants me to sell it for him...only I have no idea what it is. Kinnda weird. I think it is an 8BA as it has no slot up front for the distributor but has a bolt on front distributor drive gear. The front and center bearing surfaces have an oiling grove cut into them. and looks like it was done with a cut off wheel, and the rear oilng grove has had the ends blocked off by welding. I would assume for high oil pressure?

It appears to be a new billet, and has ELIMINATOR stamped into the snout. Can anyone ID this thing...or even better, got any specs?

From the pics it appears to be an original Potvin Eliminator.
The stamping on the nose is as the originals appeared.
I have reground many over the years and they have a distinctive look to the machining style also.
It definetly needs to be reground to be usable and the rust pits on the journals could be a problem if it needs to be more undersize. This would require home made bearings.
The specs are:
Model425
Intake 26-74
Exhaust74-26
Lift .410
Advertised duration 280
Lobe seperation 112
Rate of lift .008

http://i307.photobucket.com/albums/n...01/photo14.jpg

http://i307.photobucket.com/albums/n...01/photo15.jpg

http://i307.photobucket.com/albums/n...01/photo16.jpg

http://i307.photobucket.com/albums/n...01/photo17.jpg

Atwater Mike 02-27-2014 01:11 PM
Re: Help ID this flathead Ford V8 "ELIMINATOR" camshaft
 

That's a Potvin Eliminator, all right. When Chuck Potvin moved his equipment into Dean Moon's shop, I called him for a Potvin Eliminator for my 304" flathead. (1983?)
Dean said they could supply me with that cam, BUT!
Unless I had a 1932 Ford V8 cam core, there would be a monsterous core charge...('32 V8 cams were steel, not cast... Chuck Potvin only cut the eliminators from steel cam cores)
I found one eventually, Brian Burnett had it. This stick had more 'snap' than any others I ever used...like witchcraft!

KiWinUS 02-27-2014 06:48 PM
Re: Help ID this flathead Ford V8 "ELIMINATOR" camshaft
 

Quote:
Originally Posted by Atwater Mike (Post 831940)
That's a Potvin Eliminator, all right. When Chuck Potvin moved his equipment into Dean Moon's shop, I called him for a Potvin Eliminator for my 304" flathead. (1983?)
Dean said they could supply me with that cam, BUT!
Unless I had a 1932 Ford V8 cam core, there would be a monsterous core charge...('32 V8 cams were steel, not cast... Chuck Potvin only cut the eliminators from steel cam cores)
I found one eventually, Brian Burnett had it. This stick had more 'snap' than any others I ever used...like witchcraft!
So chuck machined the front of the press on cam gear snout to be a bolt on also ?
I have one just like this .

panic 04-27-2024 04:06 PM
Re: Help ID this flathead Ford V8 "ELIMINATOR" camshaft
 

I've written an Excel spreadsheet containing the data for the Potvin 3/8 and another for the Potvin Eliminator. This includes how the events are calculated and some comments bout each.

PM me for a free copy.


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