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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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| 827 | 65 | 11 | 17 | 63 | 256 | 260 | .480" | .460" | H | H | Std. E.A. | ||||
| 1160 | 65 | 15 | 17 | 63 | 260 | 260 | .474" | .454" | H | H | XR 6. | ||||
| 826 | 70 | 16 | 23 | 68 | 266 | 267 | .480" | .460" | H | H | |||||
| 826A | 60 | 26 | 28 | 63 | 266 | 267 | .480" | .480" | H | H | Moved lobe centre lines. | ||||
| 1337C | 70 | 30 | 34 | 66 | 280 | 280 | .530" | .530" | H | H | Speedway (valve springs required). | ||||
| 596C | 73 | 33 | 37 | 69 | 286 | 286 | .572" | .572" | H | H | Can be used as solid. | ||||
| 1189C | 76 | 36 | 38 | 74 | 292 | 292 | .540" | .540" | H | H | |||||
Notes -
- New profiles are constantly being developed
- Shims are available for the rockers.
- If required, machine cam caps for correct rocker geometry.
- Care must be taken because of the 2 to 1 rocker ratio.