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Profile
Number |
Advertised Timings
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DURATION
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VALVE LIFT
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TAPPET
CLEARANCE |
REMARKS
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Ex Op.
B.B.D.C. |
Ex Cl
A.T.D.C |
In Op.
B.T.D.C. |
In Cl
A.B.D.C |
Advertised
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@ 0.050"
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Gross.
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@ T.D.C.
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Ex.
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In.
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| 466 | 68 | 37 | 30 | 75 | 285 | 285 | 191 | 191 | .360" | .360" | H | H | Std. (@ zero ). | ||
| 300AT | 65 | 15 | 20 | 60 | 260 | 260 | 203 | 203 | .415" | .415" | .020" | .027" | H | H | Torque/ cruise. |
| 422A | 64 | 20 | 24 | 60 | 264 | 264 | 208 | 208 | .415" | .415" | .026" | .044" | H | H | Mild improvement. |
| 310 | 68 | 20 | 28 | 60 | 268 | 268 | 212 | 212 | .450" | .450" | .029" | .054" | H | H | Strong mid range. |
| 440T | 75 | 20 | 25 | 65 | 270 | 270 | 211 | 211 | .435" | .435" | .035" | .040" | H | H | |
| 594 | 71 | 23 | 31 | 63 | 274 | 274 | 225 | 225 | .460" | .460" | .039" | .079" | H | H | Fast road 3000-6500 rpm. |
| 392C | 76 | 44 | 47 | 73 | 300 | 300 | 257 | 257 | .507" | .507" | .108" | .129" | .020" | .018" | Full competition. |
| 764 | 76 | 36 | 42 | 70 | 292 | 292 | 251 | 251 | .540" | .540" | .022" | .020" | Full competition. | ||
Notes -
- Larger profiles available see Holden or Chevrolet.
- Most regrind cams are not suitable for improved grinds.
- Holden 308 followers can be used if preload is checked.
- These profiles suit Leyland P76 and MGB V8.