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| Profile Number |
Advertised
Timings |
DURATION |
VALVE
LIFT |
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 |
@
0.050" |
Gross. |
@
T.D.C. |
Ex. |
In. |
|
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| 737 | 60 | 21 | 23 | 60 | 261 | 261 | 210 | 208 | 0.295" | 0.310" | 0.008" | 0.006" | STD | ||
| 756 | 52 | 25 | 25 | 52 | 257 | 257 | 215 | 215 | 0.310" | 0.310" | 0.008" | 0.006" | Torque Imp | ||
| 514A | 70 | 31 | 33 | 70 | 281 | 283 | 228 | 228 | 0.310" | 0.310" | 0.008" | 0.006" | Stage 1 | ||
| 536C | 74 | 38 | 40 | 72 | 292 | 292 | 232 | 232 | 0.350" | 0.350" | 0.008" | 0.006" | 258 @ 0.040" | ||
| 514B | 74 | 46 | 48 | 72 | 300 | 300 | 240 | 240 | 0.350" | 0.350" | 0.008" | 0.006" | |||
| 723C | 81 | 45 | 45 | 81 | 306 | 306 | 246 | 246 | 0.385" | 0.385" | 0.008" | 0.006" | 262 @ 0.040" | ||
| 1227C | 85 | 55 | 59 | 81 | 320 | 320 | 257 | 257 | 0.400" | 0.400" | 0.008" | 0.006" | |||
| 931C | 82 | 50 | 54 | 78 | 312 | 312 | 248 | 248 | 0.425 | 0.425 | 0.008" | 0.006" | 272 @ 0.040" | ||
Notes -
* Same profiles can be used on both the 750, 1100, and 1300cc engines.
* Valve springs should be changed above 0.370" lift
* Some profile srequire modified rocker pads.
* This is only a small selection of our profiles.
