Cam Comparison Chart

Part #

Application

Nominal
Duration

Lift
at Cam

Suggested
C/R

Power
Range

Max
RPM

MD266

A-Series Mild Street (Kent)

263/270

.263/.270

8.5-9.5

1000-6000

6500

MD276

A-Series Performance (Kent)

270/280

.293/.315

9.0-10.1

1500-6500

7000

VP7

A-Series Mild Street

270/276

.289/.292

8.5-9.5

1600-6500

7000

VP6

A-Series Perf. Street

268/268

.312/.312

9.0-10.1

2400-7200

7500

SPVP3

A-Series Hot Street

286/286

.319/.319

9.0-10.1

2500-7300

7600

SPVP4

A-Series Vintage Race

296/290

.324/.321

11.3-13.5

3500-7800

8400

SPVP5

A-Series Full Race

306/306

.324/.321

12.0-14.2

4200-8900

9200

VP8C

A-Series Race

286/286

.339

11.3-13.5

3000-8000

8500

Part numbers that end in "N" are plasma ion nitrided regrinds, or "BK" are new 'chilled iron' cores 'highly recommended) See the relevant cam section for more details.

VP11

B-Series Mild Street

260/260

.286/.293

8.9-9.7

1200-6200

6800

VP12

B-Series Performance Street

276/276

.293/.293

9.0-10.0

1900-6800

7250

VP14

B-Series Rally Spec.

284/284

.310/.310

10.0-11.6

2800-7000

7500

VP16

B-Series Vintage Race

295/295

.323/.323

12.0-13.0

3300-7600

8000

VP18

B-Series Full Race

306/306

.322/.322

12.8-13.8

4000-8100

8500

Part numbers that end in "N" are plasma ion nitrided regrinds, or "BK" are new 'chilled iron' cores 'highly recommended) See the relevant cam section for more details.

TH24

TR 1300/1500 Performance

278

.256

9.0-9.5

2000-6000

6500

TH54

TR 1300/1500 Top Street Performance

276

.290

9.0-9.6

2500-6800

7200

TH64

TR 1300/1500 Vintage Race

284

.308

11.0-12.4

3200-7500

7800

TH74

TR 1300/1500 Full Race

295

.324

11.5-13.0

3800-7900

8200

 

TH26

TR6/GT6 Performance

278

.256

9.0-9.5

2000-6000

6500

TH56

TR6/GT6 Top Street Performance

276

.290

9.0-9.6

2500-6800

7200

TH66

TR6/GT6 Vintage Race

284

.308

11.0-12.4

3200-7500

7800

TH76

TR6/GT6 Full Race

295

.324

11.5-13.0

3800-7900

8200

Part numbers that end in "N" are plasma ion nitrided regrinds, or "BK" are new 'chilled iron' cores 'highly recommended) See the relevant cam section for more details.

Don’t Forget:

CF01

Standard A & B-Series Cam Followers (all APT lifters are checked for hardness and face radius)

CF-02

Chilled Iron A & B-Series Cam Followers (best used with  chilled iron or steel cams, ie. "BK" suffix cams)

CF-03

Standard Triumph Cam Followers

9902-1

Crane Cam Lube

NOTES: 1275 'A' series cam cores in star (spider) drive are getting harder to find (we can regrind yours if you have a good core) so we generally supply the slot drive version as used in the later A+ engines (cams with the suffix "MN" ) use oil pump part number OPA+