Old Crane Hemi cam grinds...

Posted By: Bob_Coomer

Old Crane Hemi cam grinds... - 12/12/09 08:18 PM

Anyone have any info on the following Crane Cams Mech roller Hemi camshafts.

R 285/410-8
R 290/446-4
R 286/500-4
R 325

Im almost 100% sure the last set of numbers is lobe lift.
There was a post on here several months ago that might have mentioned one of these cams.
I would like to pick one that would best fit my application...
572 Hemi, heads flow 460cfm.700 lift, 13.8:1 compression, MP X-Ram.

Posted By: TS3303

Re: Old Crane Hemi cam grinds... - 12/12/09 08:29 PM

yes duration then lobe lift. The second one looks good for you. I may know someone that may have one, I'll try to find out.

Posted By: Bob_Coomer

Re: Old Crane Hemi cam grinds... - 12/12/09 08:32 PM

Found this old DCX Cam chart..Looks like this is the specs for the 290 cam...I know some of the old Racer Brown cams were very close r shared the same specs alo.

6 Cyl. P4120243 D.C. 244-108 244 .436" 102 .010 .020
6 Cyl. P3690766 SS14-112 268 .450" 108 .016 .020
6 Cyl. P3690768 ST21-110 286 .520" 108 .016 .020
A Eng. P3412044 68 340 Man.-114 276/284 .444/.453" 112 Zero
A Eng. P3690213 Street Hemi GT-112 284 .471/.474" 109 Zero
A Eng. P3690769 SSH-44-108 292 .510" 110 Zero
A Eng. P4007619 SSH-25/44 286/292 .485/.510" 108 Zero
A Eng. P4007275 C. D. Stock "Cheater" 336/348 .462/.473 108 Zero
A Eng. P4120231 D.C. 284-108 284 .484" 108 Zero
A Eng. P4120231 D.C. 292-108 292 .509" 108 Zero
A Eng. P3412016 ST21-108 286 .520" 110 .018 .022
A Eng. P2836146 STX21-105 306 .560" 105 .028 .032
A Eng. P4120653 D.C. 284-112 284 .542" 110 .028 .032
A Eng. P4120655 D.C. 296-110 296 .572" 108 .028 .032
A Eng. P4120657 D.C. 312-106 312 .606" 104 .028 .032
A Eng. P4120148 D.C. 320-102 320 .630" 100 .024 .028
A Eng. P3690795 R280-427-1 10 Crane *280 .640" 108
A Eng. P3690589 Magna. Velocity-110 324 .633" 110 .024 .028
A Eng. P4007278 R-278-284-.413-.427-06 *278/284 .620/.640" 106 .035 .035
Cam Dyn.
A Eng. P4007509 R-284,427-05 Cam Dyn. *284 *284 108 .035 .035
A Eng. P3690796 R-296-4778-1 10 Crane *296 .717" 109 .024 .028
B Eng. P3690214 Street Hemi Gr.-108 284 .471/.474" 106 Zero
B Eng. P3412073 SSH-25-108.5 286 .485" 108 Zero
B Eng. P3690812 SSH-44-108 292 .510" 106 Zero
B Eng. P4007277 C.D. Stock "Cheater" 352/380 .467/.483 108 Zero
B Eng. P4120235 D.C. 284-108 284 .484" 108 Zero
B Eng. P4120237 D.C. 292-108 292 .509" 108 Zero
B Eng. P3690816 Stage 11-115 300/308 .518" 110 .028 .032
B Eng. P4120659 D.C. 284-112 284 .528" 110 .028 .032
B Eng. P4120661 D.C. 296-110 296 .557" 108 .028 .032
B Eng. P4120663 D.C. 312-106 312 .590" 104 .028 .032
B Eng. P3690159 STX-22 310 .590" 108 .028 .032
B Eng. P3690588 Mini Express-107 316 .654" 107 .024 .028
B Eng. P4120042 R280-.4468-08 Crane *280 .670" 108 .035 .035
B Eng. P4007279 R286-500-108 Cam Dyn. *286 .750" 107 .035 .035
Hemi P3690814 SSH-44-108 292 .510" 106 Zero
Hemi P4007945 C.D. Stock "Cheater" 342/348 .490/.480" 103 Zero
Hemi P3412090 STX22-105 310 .590" 104 .028 .032
Hemi P3571029 725-105 340 .643/.623" 103 .028 .032
Hemi P3690587 Mini Express-104 324 .684/.663" 103 .024 .028
Hemi P3690591 R-290-446-104- Crane *290 .700/.678" 103 .028 .032
Hemi P4007253 R292-500-106 Cam Dyn. 0292 .785/.760" 103 .032 .032
Hemi P3690839 R-296-4778-108 Crane *296 .750/.726" 108 .032 .032

Posted By: Anonymous

Post deleted by Defbob - 12/12/09 08:37 PM

Posted By: Bob_Coomer

Re: Old Crane Hemi cam grinds... - 12/12/09 08:46 PM

Found the specs for the following cam also.

R286/500-4
286/292 dur at .050
Lift .785/.760

Opens Closes ADV Duration
Intake 51.0 BTDC 95.0 ABDC 326.0 �
Exhaust 102.0 BBDC 50.0 ATDC 332.0 �

Looks like this one has a pretty wide LSA...like 113.5-114....

Posted By: Bob_Coomer

Re: Old Crane Hemi cam grinds... - 12/12/09 08:47 PM

Quote:

#3 very close to my Duster

Does yours have a wide LSA like this one Fred?

Posted By: TS3303

Re: Old Crane Hemi cam grinds... - 12/12/09 08:51 PM

Quote:

Looks like this one has a pretty wide LSA...like 113.5-114....

isn't that normal for a Hemi grind? to reduce the intake charge loss out the exhaust?

Posted By: Bob_Coomer

Re: Old Crane Hemi cam grinds... - 12/12/09 08:55 PM

Quote:

Quote:

Looks like this one has a pretty wide LSA...like 113.5-114....

isn't that normal for a Hemi grind? to reduce the intake charge loss out the exhaust?

You got me Jim...I havent the foggest idea on these engines...

Posted By: TS3303

Re: Old Crane Hemi cam grinds... - 12/12/09 08:59 PM

me either, not a Hemi guy. maybe Jeff will post and add some info to Hemi grinds.

Posted By: Anonymous

Post deleted by Defbob - 12/12/09 09:54 PM

Posted By: liteweight

Re: Old Crane Hemi cam grinds... - 12/13/09 07:12 AM

I have a brand new Hemi R290 cam in the box with a complete set of new lifters. I also a new set of matching valve springs for this cam. Pm me if your interested.

Liteweight

Posted By: LSP

Re: Old Crane Hemi cam grinds... - 12/13/09 01:51 PM

Quote:

Quote:

Looks like this one has a pretty wide LSA...like 113.5-114....

isn't that normal for a Hemi grind? to reduce the intake charge loss out the exhaust?

When we were running hemi's back in the day, we shrunk the exhaust valve to 1.85", and were going to go with smaller exhaust lobes.

Posted By: mr_340

Re: Old Crane Hemi cam grinds... - 12/13/09 08:03 PM

I replied to your PM.

Posted By: mgpanos

Re: Old Crane Hemi cam grinds... - 12/14/09 02:08 AM

The R286/500-4 was commonly used in the Super Stock Hemis in the late 70's and maybe early 80's. The R290/446-4 was the first popular Crane grind for the Pro Stock-style Hemis, but was a killer on valve springs. It was replaced by the R296/4778-8 which wasn't quite so hard on springs even with more lift. I have never heard of the R285/410-8 but suspect it was for the heavier Super Stock cars.

Mark

Posted By: RAT PATROL

Re: Old Crane Hemi cam grinds... - 12/14/09 03:10 PM

I run a Comp Cams 296 Duration, 790 lift, 108 LSA. Seems to have good torque.

Attached picture 5666978-MyPictures016.jpg

Posted By: mbogina

Re: Old Crane Hemi cam grinds... - 12/15/09 05:29 PM

The Crane R290-446-04 is the oldest cam, an early SS Cam, 290 @.050 int and exh, .446 lobes int and exh, LSA 104, 82 overlap, gross Int lift .700, Exh .678. This was generally replaced by the R292-500-06, .500 lobes, LSA 106, 80 overlap, gross lift .785/.760. The SS/DA cam was the R286-500-04,.500 lobes, LSA 104, 78 overlap, gross lift .785/.760. The R296-4778-08 was known as a 4 speed SS/A cam, .478 lobes, LSA 108, 80 overlap, gross lift .750/726.

Posted By: Anonymous

Post deleted by Defbob - 12/15/09 05:35 PM

Posted By: deaks

Re: Old Crane Hemi cam grinds... - 12/15/09 11:40 PM

Dont know if this will work.

Attached picture 5669987-cranerollercamlist.JPG

Posted By: Bob_Coomer

Re: Old Crane Hemi cam grinds... - 12/16/09 12:11 AM

Quote:

Dont know if this will work.

Thank you deaks...thanks a bunch

Posted By: 604 Hemi GTX

Re: Old Crane Hemi cam grinds... - 12/16/09 03:29 AM

Quote:

Dont know if this will work.

Were did you find the info for hemi grind cams...i've been looking with no luck..
here's my cam info R296/435-10X 66-2096 any help would be appreciated...not trying to hi-jack this thread.

Posted By: 52savoy

Re: Old Crane Hemi cam grinds... - 12/16/09 06:40 PM

Quote:

The R286/500-4 was commonly used in the Super Stock Hemis in the late 70's and maybe early 80's. The R290/446-4 was the first popular Crane grind for the Pro Stock-style Hemis, but was a killer on valve springs. It was replaced by the R296/4778-8 which wasn't quite so hard on springs even with more lift. I have never heard of the R285/410-8 but suspect it was for the heavier Super Stock cars.

Mark

Your right...the R290 was the first really big cam used in early HEMI pro/stockers and it found it's way over to super/stock.
I've been using that cam for about 30 years and still love it..

My newest HEMI stroker(478) is using it and the motor will be going in my "SILVER BULLIT" clone.

The cam specs very from make to make. So the cam card showing it over 700lift is wrong for a HEMI. Get an early('71-'74) Crane Cams catalog!
Fred

Posted By: Anonymous

Post deleted by Defbob - 12/16/09 06:49 PM

Posted By: 52savoy

Re: Old Crane Hemi cam grinds... - 12/16/09 06:54 PM

one Fred to another....

The chart "deaks" posted might be for a Ford or Chevy..(different makes). I have a '73 catalog and it shows different cam specs depending on the make of engine.

Posted By: Bob_Coomer

Re: Old Crane Hemi cam grinds... - 12/16/09 07:08 PM

Quote:

Quote:

So the cam card showing it over 700lift is wrong for a HEMI. Get an early('71-'74) Crane Cams catalog!
Fred

Quote:

The " Basic " Crane grind number system would be :

R-288/4714-2S-10

The Prefix would indicate the type of lifter.(in this example R )
H = hyd flat tappet
S = Solid flat tappet
R = Roller Tappet
HR = Hyd Roller
IR = Inverted Ramp Mechanical Roller
TR = Track Mechanical Roller
ect ect

The second grouping is the duration @ .050.( in this example 288 )

The 3rd is the INTAKE lobe lift.( In this example .4714 )

The - 2 after the intake lobe lift would mean the ex is 10 deg longer dur @ .050.

-2S , 2S1 , 2S2 indicated more Ex duration but not exactly 10 deg more.

-2R would mean 10 deg less exhaust dur.

-2SR means less Ex dur but not exactly 10 deg.

The last set of numbers is the LSA when you add 100 deg to it.( in this case the 10 plus 100 = 110 LSA.
Have no idea what the S stood for. Maybe the S meant Special,

Well that would mean this cam could possibly have a 104 LSA not a 114? LOL....My brain hurts now

Posted By: deaks

Re: Old Crane Hemi cam grinds... - 12/16/09 08:15 PM

You could be right, although i was looking for info on the R280 and 286 at the time and the R280 specs tallied with my R280 measurements.
Mick

Posted By: HemiDave

Re: Old Crane Hemi cam grinds... - 12/16/09 08:34 PM

I feel your pain!

I 'inherited' a stack of Hemi cams with little info...

Trying to figure the specs on this one:

Dave

Attached picture 5671699-P1020373_Vga.JPG

Posted By: mgpanos

Re: Old Crane Hemi cam grinds... - 12/18/09 03:20 AM

Wow, I think that is an old Racer Brown setup you have there! Racer Brown was a popular choice in the early Hemi Pro Stockers, but the narrow lobe probably limited the spring pressure due to high loads at the roller. I used to have some of the Racer Brown info but have misplaced it long ago. Sorry.