Camshafts

To help you make that arm-jerking torque and horsepower you seek, NRHS offers a collection of the BEST cams available!

 

Camshafts are a key component for your engine, and your choice in cams has the potential to make or break your project. But it's easy to get overwhelmed while shopping for cams, because there are so many choices available. What's a person to do?

 

Successful camshaft selection starts with an understanding of the interactions between the intake system, the flow characteristics of the heads, the bore and stroke of the engine, the compression ratio, and the exhaust system, all tied together with a master plan. But beyond that, it also requires experience. Not every cam grind that looks good on paper will actually work well for you. This is because cam specs alone don't tell the whole story, they represent just a handful of dimensions on a highly complex shape, and they don't give nearly enough information about critical parameters such as valvetrain dynamics.

 

Fortunately, NRHS has extensive experience with many grinds in many applications; we build lots of street and race motors and we help literally hundreds of people each year with their personal projects. On this page, we've put together a list of the cams we have the most success with in each type of application. In particular, these cams work exceptionally well with our head porting services. If you are in doubt or confused about which grind is appropriate for your application, please do not hesitate to call and speak with a performance consultant.

 

Except where noted, these cams are not “bolt-in”. Installation requires careful checking of various clearances as well as valve springs that are appropriate for the application. Also, we highly recommend roller tip rocker arms for cam lifts above .550”.


 

Evolution Sportster & Buell Camshafts

91-04 Sportster and 95-02 Buell

 

Cam gear fit can be an issue in Sportsters and Buells, particularly 1999 and older models. HD literally had 7 different sizes for each gear, including the pinion gear, and each engine coming off the production line got a combination of gear sizes specific to that engine. Gears were matched in this manner to minimize noise.

 

When changing cams in one of these motors, it's important to check the cam fit and make sure in particular that the gears turn freely and do not bind. Having gears a little bit loose is okay, you'll get some clatter but it doesn't hurt anything. Too tight, however, is a problem, it can cause localized heating of gear teeth and that can cause a failure. Aftermarket cam sets are  supplied on the loose side so they will work in the majority of engines, but always check. The 91-99  pinion gear we sell is the "yellow" gear and is the smallest gear available.  It will work will all course pitch cam sets but it may be a little noisier than stock.

 

In the 2000 model year, HD changed to a high contact ratio gear cut between the pinion gear and the #2 cam and eliminated the need to fit this connection. In 2001, this change was propagated to all of the connections between the cams. These later style cams can be installed in earlier engines by using a late model high contact ratio pinion gear (see below). Likewise, cams with the older gear cut can be installed in later engines by backdating the pinion gear.

 

NRHS SPORTSTER AND BUELL CAMS

 

NRHS is proud to introduce our new Hurricane Cat 3 and Cat 4 cams for Sportsters and Buells. We have taken the best features of Screaming Eagle,  Andrews and Red Shift cams and came up with our own exclusive designs that allow for easy installation due to low TDC lifts while still making awesome power. We also have an exclusive grind available for Buell XB's.

 

Application

Timing @.053”

Duration @.053”

Lift

TDC lift

Part Number

91-99

Part Number

00-up

Part Number

03-07 Buell XB

NRHS Cat 3 cams

I:26/50

E:52/24

256

256

.540

.540

.217

.205

11-NRHS-Cat3

$314.95

 

11-NRHS-Cat3-00

$314.95

 

11-NRHS-Cat3-XB

$314.95

 

NRHS Cat 4 cams

I:22/58

E:59/21

260

260

.590

.590

.197

.186

11-NRHS-Cat4

$314.95

 

11-NRHS-Cat4-00

$314.95

 

N/A

 

ANDREWS EVOLUTION SPORTSTER GRINDS

 

In milder Sportster/Buell engines, we have tremendous success with Andrews cams. The Andrews N4/V4 bolt-ins (stock in many Buells) are the best bolt-in grind we've ever tested in these engines. Moving up the scale, the N6/V6 cams work very well with bikes that have high compression (about 10.6:1) pistons and even better with headwork. These make an excellent addition to your NRHS 1250 kit.  Both of these cams work fine with stock valve springs, stock pushrods, lifters, and rockers, too, keeping the costs down. All things considered, these cams perform well and are a terrific value.

 

The new Andrews N3 grind is a terrific high-torque grind, that works very well with around 10:1 compression and stock heads. Note that these cams only work on 2004  and up models.

 

Application

Timing @.053”

Duration @.053”

Lift

TDC lift

Part Number

Year 86-90

Part Number

Year 91-99

Part Number

Year 00-up

Andrews N4/V4

bolt-in

I:30/46

E:52/24

256

256

.497

.497

.216

.189

11-298140

$324.95

11-298145

$324.95

11-298150

$324.95

Andrews

N6/V6

Street Performance

I:34/50

E:56/28

264

264

.500

.500

.241

.212

11-298160

$324.95

11-298165

$324.95

11-298170

$324.95

Andrews N3 Hi Torque

(2004 and up)

 I:22/38

E:43/11

230

234

.465

.482

.181

.134

N/A N/A

11-298135

$324.95

 

 

NEW

S&S CAMS FOR EVOLUTION SPORTSTER & BUELLS

 

S&S has 3 grinds available for 1986-06 Evolution Sportsters and 1991-02 Buells. (except Blast)  The new 600 cam is recommended for modified engines with  at least stage 2 headwork and higher compression while the 555 works better with ported heads and raised compression and  the 500 cams are considered a "bolt in"  and  will work great in stock or mildly modified  engines.   It is recommended that you check valve to piston clearances however due to the high intake TDC lift.  NOTE: 2000 and up require a 1991-1999 pinion gear be installed ( see below for pinion gears)

 

Note:  Due to S&S policies we cannot post prices on the internet. Please call us for prices.

 

  Application

             Timing

.053"

Duration

 @.053"

Lift

TDC lift

Part Number

1986-90

Part Number

1991-Up

S&S 500

I: 34/50

E: 56/28

264

264

.500

.500

.241

.212

11-33-5081

11-33-5082

S&S 555

I: 33/53

E: 53/33

266

266

.555

.240

.240

11-33-5083

11-33-5084

S&S 600

I: 20/55

E: 60/20

255

260

.600

.194

.184

11-33-5125

11-33-5126

 

RED SHIFT EVOLUTION SPORTSTER GRINDS

 

In higher performance Sportster/Buell engines, the Red Shift line is tough to beat. Outstanding performance and good valvetrain dynamics characterize these cams. Also, Red Shift addresses the '00 and earlier fit problem by allowing you to send in your factory fitted cams to have Red Shift lobes installed. This not only resolves the fit issue, but it saves you money as well!

 

Most of these cams will require some clearance work to swing clearly in the engine case. This can be accomplished with careful use of a die grinder after thorough masking of the cam chest. 2000-later models require more extensive clearancing of the case and pinion bearing race. Most models will also require rocker box clearancing for the rocker arms on the pushrod side at full lift. It's a little bit of extra work, but more than worth the result.

 

Application

Timing @.053”

Duration @.053”

Lift

TDC lift

Part Number

on customer's cores

Part Number

Outright

91-99*

RED SHIFT 567

Street/Strip

I:24/107/49

E:54/108/19

253

253

.567

.567

.211

.172

11-413115C

$449.00

Send your cams to NRHS

11-413115

$649.00

RED SHIFT 585

Street/Strip

I:22/108/59

E:66/117/13

261

259

.583

.583

.183

.139

11-413120C

$449.00

Send your cams to NRHS

11-413120

$649.00

RED SHIFT 630/585

High Torque

I:26/95/40

E:59/108/21

246

260

.630

.585

.224

.181

11-413127C

$449.00

Send your cams to NRHS

11-413127

$649.00

RED SHIFT 643

Street/strip/race

I:34/104/65

E:71/116/19

270

270

.643

.643

.235

.172

11-413130C

$449.00

Send your cams to NRHS

11-413130

$649.00

RED SHIFT 729V2

Race

I:34/104/65

E:71/112/28

279

279

.729

.729

.279

.228

11-413135C

$449.00

Send your cams to NRHS

11-413135

$649.00

 

* - can be installed in 2000-up engines by changing the pinion gear

 

PINION GEARS FOR EVOLUTION XL

 

Application

Part Number

Price

 

2000 & later

high contact ratio

11-2404700

$97.50

91-99 "yellow"or

 Redshift outright cams

11-334166

$129.95

 

 

BRONZE OIL PUMP DRIVE GEARS FOR XL/BUELL

 

The factory steel gears have been known to be problematic and have teeth sheer off sending shards of steel into your engine causing catastrophic failure.  This is cheap insurance!!

 

Application

Part Number

Price

 

91 and up bronze oil pump drive gear XL/Buell

22-26391-06

$99.95

 

 


Buell XB9, XB12 and Blast Camshafts

 

The Buell XB and Blast engines differ significantly from the XL engine in the cam box. Essentially, the order of the cams has been reversed from the XL; cam number 1, which is the rear exhaust in an XL, is  the front exhaust in an XB. Cam #2, which is the rear intake, is the front intake in an XB, and so on. XL cams actually fit into the XB gearcase and can be made to work, and in fact, many cam sets are dual-marked, with O's for installation in an XL and V's for installation in an XB. However, for some reason HD put the timing cup keyway in a different position for the XB cams. So unless you want to tackle that problem, you're better off using cams designed for your XB.

 

XB and Blast gearcases have a particularly tight clearance issue between the #2 (front intake) cam lobe and the pinion bearing race. Clearancing of the lobe and/or race may be necessary when installing high lift cams.

 

RED SHIFT XB9 & XB12 GRINDS

 

Red Shift has now configured their extremely successful XL cam profiles for the XB gearcase! These cams work tremendously well with head work and matching intake and exhaust modifications.

 

Application

Timing @.053”

Duration

@.053”

Lift

TDC lift

Part Number

on Customer's cores

Part Number

 outright

RED SHIFT 567

Street/Strip

I:24/107/49

E:54/107/19

253

253

.575

.575

.210

.170

11-413115XBC

$440.00

Send your cams to NRHS

11-413115XB

$605..00

RED SHIFT 585

Street/Strip

I:24/107/59

E:67/115/16

263

263

.580

.580

.205

.155

11-413120XBC

$440.00

Send your cams to NRHS

11-413120XB

$605.00

RED SHIFT 630/585

High Torque

I:27/97/41

E:60/109/22

248

262

.630

.585

.230

.189

11-413127XBC

$440.00

Send your cams to NRHS

11-413127XB

$605.00

RED SHIFT 643

Street/strip/race

I:27/107/61

E:70/116/18

268

268

.645

.645

.224

.175

11-413130XBC

$440.00

Send your cams to NRHS

11-413130XB

$605.00

 

 

Buell Blast Camshafts

 

 

 

 

RED SHIFT BLAST GRINDS

 

Application

Timing @.053”

Duration

@.053”

Lift

TDC lift

Part Number

on customer's cores

Part Number

outright

RED SHIFT 567

Street/Strip

I:24/107/49

E:54/107/19

253

253

.575

.575

.210

.170

11-413115BC

$227.50

Send your cams to NRHS

11-413115B

$360.00

RED SHIFT 585

Street/Strip

I:24/107/59

E:67/115/16

263

263

.580

.580

.205

.155

11-413120BC

$227.50

Send your cams to NRHS

11-413120B

$360.00

RED SHIFT 630/585

High Torque

I:27/97/41

E:60/109/22

248

262

.630

.585

.230

.189

11-413127BC

$227.50

Send your cams to NRHS

11-413127B

$360.00

RED SHIFT 643

Street/strip/race

I:27/107/61

E:70/116/18

268

268

.645

.645

.224

.175

11-413130BC

$227.50

Send your cams to NRHS

11-413130B

$360.00

 

 


Twin Cam Camshafts

In the Twin Cam line, we offer quality grinds from both S&S and Red Shift. We've had tremendous success with both brands.

 

For a mild, bolt-in grind that doesn't need a lot of spring pressure, the stock cam chain arrangement is fine. However, at NRHS we feel a gear drive is essential, not optional, on high performance Twin Cam grinds with extra overlap and high spring pressures. Besides being able to handle the increased spring load reliably, the superior control of the cam timing offered by a gear drive becomes much more critical in high performance applications because piston to valve and valve to valve clearance are generally being pushed harder. This is not  a place where you want to cut corners! A failure will take out a lot of expensive hardware. Gear drives also reduce the torsional load on the cam bearings as well as significantly reduce friction. It's a better setup all around. All gear drive cams are supplied without gears, see below for gear drive components.

 

S&S TWIN CAM GRINDS

S&S Twin Cam grinds offer exceptional torque and horsepower for all applications.  The 510 is the best Twin Cam bolt-in we've found. The high-lift/narrow 570G is terrific for arm-jerking, tire shredding torque. The 585G is a terrific all around street grind. And the 625G & 640G grinds produce some truly impressive horsepower with our Stage 3 head work. As with everything we carry at NRHS, we carry the S&S line of cams because they work!

 

Note:  Due to S&S policies we cannot post prices on the internet. Please call us for prices.

 

Grind

Timing @.053”

Duration @.053”

Lift

Chain Drive Cams

Gear Drive Cams

(Complete with gears and install kit)

S&S 510C/G

Street bolt-in

I:20/99/38

E:52/106/20

238

252

.510

.510

11-335182*

11-335177

S&S 570G

High Torque

I:20/100/40

E:55/107.5/20

240

255

.570

.570

n/a

11-335178

S&S 585G

Street Performance

I:20/102.5/45

E:60/110/20

245

260

.585

.585

n/a

11-335179

S&S 625G

Street/Strip

I: 20/108/55

E:60/110/20

255

260

.625

.625

n/a

11-335180

S&S 640G

Street/Strip/Race

I:25/107.5/60

E:65/110/25

265

270

.640

.640

n/a

11-335181

 

* - fits 2000 and later Twin Cam, can be fitted to 1999 model if the HD 2000-up style splined rear cam sprocket is used

 

RED SHIFT TWIN CAM GRINDS (Now Available for 07-Up)

Red Shift also offers some terrific Twin Cam grinds.  Red Shifts are known for their leading edge lobe profiles which produce tremendous power and torque while maintaining dynamics that allow the valvetrain to live. We've found these cams to be an excellent match to NRHS head work.

 

Model Year Cam Name Valve Opening @ 0.053" C/L Closing @ 0.053" Dur TDC Lift @ Valve 1.62:1 Total Lift @ Valve 1.62:1 Bolt-In?

Part No.

Chain/Gear Drive

07-up RS 525 Intake 12 92 18 210 0.139 .475 YES

Chain Drive

11-413-905S

$374.95

Gear Drive

 

 

N/A

Exhaust 36 104 13 229 0.139 0.525
07-up RS 527 Intake 18 100 36 234 0.170 0.525 YES

Chain Drive

11-413-907S

$374.95

Gear Drive

 

 

N/A

Exhaust 42 106 12 234 0.138 0.525
99-06 RS 557 Intake 20 100 42 242 0.180 0.557 YES

Chain Drive

11-413-910S

$374.95

Gear Drive

11-413-910G

$374.95

07-up Exhaust 44 104 18 242 0.164 0.557

Chain Drive

11-413-911S

$374.95

Gear Drive

 

 

N/A

99-06 RS 575 Intake 25 97 41 246 0.200 0.575

YES

(CVO)

Chain Drive

11-413-925S

$374.95

Gear Drive

11-413-925G

$374.95

07-up Exhaust 49 105 17 246 0.157 0.575

Chain Drive

11-413-926S

$374.95

Gear Drive

11-413-926G

$374.95

99-06

RS

577

Intake 25 100 47 252 0.214 0.577 No

Chain Drive

11-413-920S

$374.95

Gear Drive

11-413-920G

$374.95

07-up Exhaust 49 104 23 252 0.194 0.577

Chain Drive

11-413-921S

$374.95

Gear Drive

11-413-921G

$374.95

99-06

RS

627

Intake 30 100 50 260 0.240 0.625 No

Chain Drive

11-413-922S

$374.95

Gear Drive

11-413-922G

$374.95

07-up Exhaust 61 107 27 268 0.207 0.600

Chain Drive

11-413-928S

$374.95

Gear Drive

 

 

N/A

99-06

RS

647

Intake 26 106 58 264 0.211 0.647 No

Chain Drive

11-413-930S

$374.95

Gear Drive

11-413-930G

$374.95

07-up Exhaust 58 106 26 264 0.211 0.647

Chain Drive

11-413-931S

$374.95

Gear Drive

11-413-931G

$374.95

99-06

RS

657

Intake 27 99 45 252 0.227 0.658 No

Chain Drive

11-413-940S

$374.95

Gear Drive

11-413-940G

$374.95

07-up Exhaust 52 104 27 258 0.214 0.650

Chain Drive

11-413-941S

$374.95

Gear Drive

 

 

N/A

99-06

RS

727

Intake 35 105 66 281 0.285 0.727 No

Chain Drive

 

 

N/A

Gear Drive

11-413-950G

$374.95

Exhaust 67 112 34 281 0.268 0.727

 

GEAR DRIVES AND INSTALLATION KITS

 

Description

Part Number

 

Gear drive set, full

(99-06 Twin Cam, Ex 06 Dyna)

11-DS199538

$445.95

Gear drive set, full

(07-up Twin Cam and 06-up Dyna)

11-09250166

$445.95

Gear drive set, outer (primary) gears only

(99-06 TC, Ex 06 Dyna)

Use if new cams are supplied with gears

11-DS199539

$250.95

Installation kit, gear drive, gasket & bearings

(99-06 TC, Ex 06 Dyna)

11-DS199235

$36.95

Installation kit, gear drive, gaskets & bearings

(07-up TC and 06-up Dyna)

11-09250153

$43.95

Installation kit, chain drive, gasket & bearings

 (99-06 TC, Ex 06 Dyna)

11-DS199321

$83.95


Evolution Big Twin Camshafts

 

NRHS has extensive experience at making big power with the venerable Evolution Big Twin. We've listed our favorite cam grinds below.

 

Note that in 1992, HD changed the cam bearing from a Torrington style with 29 rollers to a new INA bearing with only 19 rollers. Many of these cheaper INA bearings have been known to fail, particularly in high performance applications. We highly recommend changing this bearing to the older Torrington whenever you change the cam in an Evolution Big Twin.

 

RED SHIFT EVOLUTION BIG TWIN GRINDS

 

For higher performance Evo Big Twin grinds, we're partial to the Red Shift line. Red Shift cams work exceptionally well and unlike many cams in these ranges, Red Shifts have excellent valvetrain dynamics that provide for a long life.

 

Grind

Timing @.053"

Duration @.053"

Lift

 

Red Shift 559V2

wide torque curve

I:16/105/46

E:48/107/14

242

242

.550

.550

11-413413

$199.95

Red Shift 576V2

Street Performance

I:23/103/49

E:50/105/20

253

250

.575

.575

11-413422

$259.95

Red Shift 626V2

Big Bore Torque

I:29/103/54

E:58/105/28

263

266

.626

.626

11-413427

$259.95

Red Shift 647V2

Street/Strip

I:27/105.5/58

E:58/105.5/27

265

265

.650

.650

11-413428

$259.95

Red Shift 656V2

Street/Strip Torque

I:28/102.5/52

E:52/103.5/26

260

258

.656

.656

11-413442

$259.95

Red Shift 715V2

Street/Strip/Race

I:31/110/71

E:78/110/24

282

282

.715

.715

11-413445

$299.95

 

EVOLUTION BIG TWIN CAM BEARINGS

 

Application

Part Number

Price

 

Torrington cam bearing

11-0924-0013

$7.95