Cam Concerns 68 Polara w 383
- Thread starter GMPolara
- Start date
As far as "wear pattern indentations", none. As far as "wear patterns", I saw more there than was mentioned.
There is a Lunati cam which Summit sells as their cam in a white box which is pretty close to the OEM 383HP cam for a good price. A few threads in here where people have used it for a replacement on a 10.0CR 383 4bbl 1968 cam. A little bit more duration and lift, but n0t much. That might be a good option.
CBODY67
There is a Lunati cam which Summit sells as their cam in a white box which is pretty close to the OEM 383HP cam for a good price. A few threads in here where people have used it for a replacement on a 10.0CR 383 4bbl 1968 cam. A little bit more duration and lift, but n0t much. That might be a good option.
CBODY67
volksworld
Well-Known Member
think I recently read that Lunati had been absorbed by Comp Cams...
Just Carbs
Well-Known Member
I don't like the cam. The nose of one of the lobes looks defective, among other things.
I wouldn't use it.
I wouldn't use it.
Luke Pokrajac
Active Member
Check out the Lunati Voodoo 256 cam....love it in my 68 HP 383.
Lunati is now part of the Edelbrock Group, which includes Comp Cams. BTAIM With these larger holding companies buying brands, you never know how things will end up. Not unlike Holley buying MSD and "hos many" EFI brands? By the time these things settle-out and such, many of us will be in the ground, I suspect. As those who like to cuss Chinese products heads will probably be in orbit.
Take care,
CBODY67
Luke Pokrajac
Active Member
You're right Cbody! Sounds like my cam, nor any voodoo cam, is available now!! That's too bad...cant beat it for a heavy c-body.
What I see are stains on the surface of the lobes. It could be from a lot of different things, dirty coolant from the cam grinder comes to mind, or how it was cleaned after grinding, but I could also see it happening from how you cleaned it up too. I have seen this on other cams that worked just fine.
So, it's just stains and not wear. I'd use it.
EDIT: Thinking on it, they put a phosphate coating on the lobes of a new camshaft. They get rinsed after getting dipped and that would account for the staining.
So, it's just stains and not wear. I'd use it.
EDIT: Thinking on it, they put a phosphate coating on the lobes of a new camshaft. They get rinsed after getting dipped and that would account for the staining.
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I put in a request with Comp today to match up my engine with a Cam. I'll ask if they know about the Lunati Voodoo 256. If I'm lucky they might still make it under another badge.
Also, I've got a regular 2bl 383. Any idea if it would be possible to use one for an HP? I've got refurbished stock 295 heads. Nothing special.
Luke Pokrajac
Active Member
Comp still owns Lunati from what I understand. They'll definitely know about the Lunati Voodoo line of cams. The 256 cam should work about us well with your lower compression G code 383. Lots of guys have put higher profile/rumpier cams in lower compression 383's and them seem to work pretty well. 383's are easy to overcam though but the 256 cam really is a torque cam with just a slight bit of lope to it...very slight. I get 20" of vacuum at idle with 440 source heads and the 256 cam...it idles really smooth.
Comp Cams broke with their asymmetrical lobe shapes in the 1990s, quick opening and slow closing, so more area under the lift curve. I was surprised to find that Lunati had similar lobes about 5 yrs ago.
I have one of the first 268HE cams they made back then. I put it into a 440 block and measured the lobes with a dial indicator, measuring directly off of a valve lifter with a Mr. Gasket degree wheel. I was astounded to see that the valves were at max lift a full 10 degrees of crank rotation! The lobe shapes were "as advertised". An original DC Purple Shaft 284/284 cam I also checked was at max lift for only 1 degree of crank rotation, by comparison. BUT that was way back then. Still have both cams. Unsure how a more recent CC cam would look, or a Lunati for that matter.
Take care,
CBODY67
I have one of the first 268HE cams they made back then. I put it into a 440 block and measured the lobes with a dial indicator, measuring directly off of a valve lifter with a Mr. Gasket degree wheel. I was astounded to see that the valves were at max lift a full 10 degrees of crank rotation! The lobe shapes were "as advertised". An original DC Purple Shaft 284/284 cam I also checked was at max lift for only 1 degree of crank rotation, by comparison. BUT that was way back then. Still have both cams. Unsure how a more recent CC cam would look, or a Lunati for that matter.
Take care,
CBODY67
This doesn't look too bad:
https://www.jegs.com/i/Lunati/638/10230700/10002/-1
https://www.jegs.com/i/Lunati/638/10230700/10002/-1
I found a video showing the "Parkerizing" (phosphate coating)
Luke Pokrajac
Active Member
That's a good cam! One step milder than the one I have in my 383.
Luke Pokrajac
Active Member
My Lunati Voodoo cam most definitely had the black Parkerizing coating on it.
wyrmrider
New Member
Back in the day Lunati cams were more powerful and quieter% than the same duration comp and both were designed by UDHAROLD with lunati being later, Today Howards has the lastest UDHAROLD designes Lunati and Howard have easy to find cams for mopar .904 lifter and Comp used chevy grinds on their mopar cores although they have some .904 grinds now which require professional set up
That said of all the 256 grinds Mike Jones has absolutely the best lobe works well and has more torque
let him pair with exhaust that matches your exhaust, gears, etc I use with Isky dual springs set up for the recommended pressures but today i'd use beehives
%quieter cams have less wear on chevies the Lunati had about 30 more HP It's about the area under the curve
Jones lobe is the fatest 256@006 205 (or so)) @.050 .305 lobe lift but huge at .200 it takes other grinders another 10 -15 seat degrees to get that curve with a chevy master like the 268 comp do not put a chevy cam in your mopar
Jones could put more lift in at the same duration but he sold to the motorhome market where they want good wear and it's the fat duration not the sharp pointy lift that counts
That said of all the 256 grinds Mike Jones has absolutely the best lobe works well and has more torque
let him pair with exhaust that matches your exhaust, gears, etc I use with Isky dual springs set up for the recommended pressures but today i'd use beehives
%quieter cams have less wear on chevies the Lunati had about 30 more HP It's about the area under the curve
Jones lobe is the fatest 256@006 205 (or so)) @.050 .305 lobe lift but huge at .200 it takes other grinders another 10 -15 seat degrees to get that curve with a chevy master like the 268 comp do not put a chevy cam in your mopar
Jones could put more lift in at the same duration but he sold to the motorhome market where they want good wear and it's the fat duration not the sharp pointy lift that counts
wyrmrider
New Member
Back in the day Lunati cams were more powerful and quiter than the same duration comp and both were designed by UDHAROLD with lunati being later, Today Howards has the lastest UDHAROLD designes Lunati and Howard have easy to find cams for mopar .904 lifter and Comp used chevy grinds on their mopar cores although they have some .904 grinds,
That said of all the 256 grinds Mike Jones has absolutely the best lobe
That said of all the 256 grinds Mike Jones has absolutely the best lobe
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