MGA-MGB PROFILES

            We recommend having these cams heat treated after grinding due to the wear problems these cams are known for.  Additionally we recommend you sending us your old lifters for radius grinding since they are made of a very soft chilled iron and are almost always worn out.  Heavy duty valve springs are required on the 7008-10 grind and up.

1500, 1600, 1622, 1800cc  ENGINES ROCKER ARM RATIO = 1.45:1 (AVG.)

GRIND NO.

SEAT DURATION

.050” DURATION

CAM LIFT

LASH

APPLICATION

STOCK

MGA

242

193

.228

STD.

MGA 1500, 1600

STOCK

MGB

264

217

.265

STD.

EARLY MGB

STOCK MGB

257

214

.265

STD.

LATE MGB

STOCK MGB

244

257

198

214

.265

.265

I STD.

E STD

LATE SMOG MGB

67-18

268

222

.289

I .017

E .019

STREET MGA-MGB

685-16

274

230

.297

I .017

E .019

STREET MGA-MGB

70-9

280

228

.262

I .010

E .012

STREET MGA-MGB. SU’S OK HEADERS 1500-5500

70-10

280

228

.278

I .012

E .014

STREET MGA-MGB. 9,5:1 CARBS HEADWORK 2-6K

71-15

284

235

.290

I .015

E .017

HOT STREET MGB

72-10

288

235

.290

I .012

E .014

HOT STREET MGB.

2500-6500 RPM

75-12

300

250

.320

I .014

E .016

AUTOCROSS 1800

3000-7000 RPM

M77-13

308

255

.320

I .016

E .018

MGA-MGB RACE

77-12

308

262

.349

I .014

E .016

MGA-MGB RACE

78-14

312

266

.328

I .015

E .017

MGA-MGB RACE

 

If you have a car in mind, which is not listed, please call us!