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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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| STD | 40 | 5 | 10 | 40 | 225 | 230 | 190/180 | 190/180 | 0.404" | 0.437" | 0.338" | 0.231" | 0.010" | 0.008' | 1052/1053 |
#01 |
47 | 13 | 15 | 45 | 240 | 240 | 190 | 190 | 0.457" | 0.457" | 0.338" | 0.338" | 0.010" | 0.008" | 1054/1052 |
| #02 | 47 | 13 | 15 | 45 | 240 | 240 | 200 | 200 | 0.457" | 0.457" | 0.380" | 0.380" | 0.010" | 0.008" | 1054/1052A |
| #03 | 50 | 10 | 25 | 55 | 240 | 260 | 200 | 200 | 0.457" | 0.460" | 0.380" | 0.380" | 0.010" | 0.008" | 1161A/1238/1054 |
| #04 | 57 | 23 | 27 | 53 | 260 | 260 | 200 | 210 | 0.460' | 0.460" | 0.400" | 0.400' | 0.010" | 0.008" | 1161A/1238A |
Notes
* Secondary Valve timings are at 1 mm lift
* Camshafts can be made from cast iron, steel or hard faced.
*For performance application the primary and mid. lobes are the same.
* Valve - piston clearance must be checked on larger profiles
* On some competition Camshafts the primary and secondary lobes are the same.
*
