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Profile Number | Advertised Timings | DURATION | VALVE LIFT | TAPPET CLEARANCE | REMARKS | ||||||||||
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. | | |||||
465 | 70 | 30 | 30 | 70 | 280 | 280 | 227 | 227 | .502 | .502" | .022" | .020" | S.V.O. Boss. | ||
883 | 66 | 30 | 30 | 66 | 276 | 276 | 240 | 240 | .580" | .580" | .022" | .020" | Mild street. | ||
383 | 84 | 36 | 40 | 80 | 300 | 300 | 245 | 245 | .520" | .520" | .025" | .025" | Phase #2 G.T.H.O | ||
764 | 83 | 35 | 44 | 68 | 298 | 292 | 256 | 261 | .622" | .514" | .024" | .022" | Street/strip. | ||
392C | 76 | 44 | 47 | 73 | 300 | 300 | 254 | 254 | .584" | .584" | .108" | .129" | .022" | .020" | Street/ strip 4500-8000 rpm. |
285C | 82 | 49 | 55 | 76 | 310 | 310 | 252 | 252 | .570" | .570" | .105" | .122" | .022" | .020" | Street/ strip 4700-8200 rpm. |
462 | 85 | 47 | 46 | 82 | 314 | 308 | 277 | 267 | .620" | .620" | .030" | .028" | Strip only. | ||
361C | 94 | 56 | 60 | 90 | 330 | 330 | 275 | 275 | .595" | .595" | .025" | .020" | Strip only. | ||
Notes -
- Care must be taken with valve springs.
- Cams must be degreed in to ensure true performance.
- Above 0.006" lift valve guide clearance should be checked.
-Titanium valves may be required to reach maximum rpm.
- Roller cams also available.
- Fluted lifters are recommended on all solid cams.