Is this a billet or cast cam? - Competition Diesel.Com

takedown95 · 03-19-2015, 06:28 PM

I bought this cam from a big name shop in the sled pulling world and I don't have a specific reason not to believe it's billet. The only thing that is throwing me is the rough finish between the lobes. The first pic is of the cam I bought. The next is a pic of a known billet cam next to a stock cast one. Anybody built cams or have seen a billet cam that is rough like that?

takedown95 · 03-19-2015, 06:30 PM

Known billet next to stock cast cam

DISTURBED · 03-19-2015, 06:57 PM

That looks to be billet

kleann · 03-19-2015, 07:58 PM

Definitely a weird finish. I wonder if you could compare the weights of all three and see if there is notable difference between the two billet ones.

smokin24v · 03-19-2015, 09:37 PM

My haisley billet cam has the same look... I can take a pic when I get home

rawdog · 03-20-2015, 06:21 AM

Looks like it to me

*Toolman* · 03-20-2015, 07:46 AM

I would say it is billet. It looks like they ruff machined it and sent it to heat treat which gave it that color. Then after heat treat finish ground the lobes.

DISTURBED · 03-20-2015, 08:04 AM

I think a lot has to do with who ground it also. The numbers on the end of the cam start with a "V"?

takedown95 · 03-20-2015, 06:26 PM

Thanks for the replies guys. Not sure on the V. I dropped it off at my builder today. Several folks have confirmed between machining, heat treating or coating that finish is common on billet cams.

gotta12v · 03-20-2015, 09:02 PM

8620 cores are copper plated to prevent that area from being hardened during heat treat so core doesn't become brittle

Shainer · 03-20-2015, 11:05 PM

Like this. http://www.ppiaerospace.com/industri...r-plating.html

Except they don't seem to remove the plating. Must not be cost effective at this time, but may change in the future.

03-19-2015, 06:57 PM	#3
DISTURBED Name: DISTURBED Title: YEA WE RIDE THE SHORT BUS Status: Not Here Join Date: Nov 2007 Location: Winchester, Va Member`s Gallery Posts: 6,417	That looks to be billet __________________ Thanks, Jeremy 01 CTD Retired sled puller, dedicated "Twin Turbo" tow rig 96 CTD "TOO" Disturbed 3.0 - Built by Disturbed Diesel Performance 96 CTD "The Sickness" 2.6/2.8- Built by Disturbed Diesel Performance

03-20-2015, 06:21 AM	#6
rawdog Name: rawdog Title: Too Much Time Status: Not Here Join Date: Jan 2007 Member`s Gallery Posts: 2,196	Looks like it to me __________________

03-20-2015, 07:46 AM	#7
Toolman Name: Toolman Title: Comp Diesel Sponsor Status: Not Here Join Date: Nov 2006 Location: Southern Michigan Member`s Gallery Posts: 1,077	I would say it is billet. It looks like they ruff machined it and sent it to heat treat which gave it that color. Then after heat treat finish ground the lobes. __________________ 04.5 Dodge ,PPE Dual Fueler, Stainless Diesel, Bullseye Power Turbo, Fass Fuel Systems, M & J Tool Converter and shafts, Smarty UDC Tuning , Isspro Gauges, Fluidampr B&B Tooling 269-496-9021 B & B Tooling Intakes and custom machined parts. Member of Drive by Wire Mafia

03-20-2015, 08:04 AM	#8
DISTURBED Name: DISTURBED Title: YEA WE RIDE THE SHORT BUS Status: Not Here Join Date: Nov 2007 Location: Winchester, Va Member`s Gallery Posts: 6,417	I think a lot has to do with who ground it also. The numbers on the end of the cam start with a "V"? __________________ Thanks, Jeremy 01 CTD Retired sled puller, dedicated "Twin Turbo" tow rig 96 CTD "TOO" Disturbed 3.0 - Built by Disturbed Diesel Performance 96 CTD "The Sickness" 2.6/2.8- Built by Disturbed Diesel Performance

03-20-2015, 11:05 PM	#11
Shainer Name: Shainer Title: Too Much Time Status: Not Here Join Date: Apr 2012 Location: Colorado Member`s Gallery Posts: 904	Like this. http://www.ppiaerospace.com/industri...r-plating.html Except they don't seem to remove the plating. Must not be cost effective at this time, but may change in the future. __________________ '98 24v "Irish Chimp". I started out with very little... I still have most of it.

03-19-2015, 07:58 PM	#4
kleann Name: kleann Title: VP44 pwr Status: Not Here Join Date: Aug 2008 Location: Down yonder Member`s Gallery Posts: 4,388	Definitely a weird finish. I wonder if you could compare the weights of all three and see if there is notable difference between the two billet ones.

03-19-2015, 09:37 PM	#5
smokin24v Name: smokin24v Title: Too Much Time Status: Not Here Join Date: Apr 2009 Member`s Gallery Posts: 537	My haisley billet cam has the same look... I can take a pic when I get home

03-20-2015, 06:26 PM	#9
takedown95 Name: takedown95 Title: Too Much Time Status: Not Here Join Date: Aug 2011 Member`s Gallery Posts: 2,841	Thanks for the replies guys. Not sure on the V. I dropped it off at my builder today. Several folks have confirmed between machining, heat treating or coating that finish is common on billet cams.

03-20-2015, 09:02 PM	#10
gotta12v Name: gotta12v Title: Too Much Time Status: Not Here Join Date: Dec 2006 Location: Fayette MO Member`s Gallery Posts: 435	8620 cores are copper plated to prevent that area from being hardened during heat treat so core doesn't become brittle