| Make:HOLDEN - 6 CYLINDER SOLID Model:CS 186202 ROCKER RATIO 1.5:1 |
| Ivan Tighe Engineering Pty Ltd Tel (07) 3271 6001 Fax (07) 3271 6005 Email: sales@tighecams.com.au |
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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. | | |||||
| 112 | 60 | 20 | 20 | 60 | 260 | 260 | 208 | 209 | .432" | .432" | .026" | .030" | .016" | .014" | Torque. |
| 640T | 70 | 20 | 25 | 65 | 270 | 270 | 218 | 218 | .450" | .450" | .030" | .038" | .018" | .016" | Mild 2400-6400 rpm. |
| 424 | 71 | 25 | 31 | 70 | 276 | 281 | 226 | 235 | .450" | .450" | .040" | .080" | .014" | .012" | Mid range 2500-7000 rpm. |
| 140T | 75 | 32 | 37 | 71 | 288 | 288 | 240 | 240 | .445" | .445" | .082" | .090" | .018" | .016" | Speedway 3200-7000 rpm. |
| 1029 | 72 | 30 | 30 | 68 | 282 | 278 | 244 | 238 | .486" | .495" | .026" | .024" | Fast street. | ||
| 150A | 71 | 40 | 40 | 71 | 291 | 291 | 240 | 240 | .475" | .475" | .084" | .095" | .014" | .012" | Fast street. |
| 121X | 75 | 41 | 45 | 72 | 296 | 296 | 240 | 240 | .414" | .414" | .076" | .113" | .016" | .014" | Fast street (std. springs). |
| 157A | 79 | 50 | 50 | 79 | 309 | 309 | 258 | 258 | .435" | .435" | .120" | .130" | .012" | .010" | Fast street (triple carbs.). |
| 764R | 80 | 32 | 47 | 71 | 292 | 308 | 251 | 256 | .530" | .530" | .022" | .022" | Street/ drag. | ||
| 392C | 76 | 44 | 47 | 73 | 300 | 300 | 254 | 254 | .507" | .507" | .108" | .129 | .022" | .020" | Drag/ road race. |
| 285C | 82 | 49 | 55 | 76 | 311 | 311 | 252 | 252 | .495" | .495" | .105" | .122" | .024" | .022" | Road race only. |
| 126 | 84 | 44 | 45 | 88 | 308 | 313 | 264 | 264 | .485" | .485" | .080" | .105" | .026" | .026" | Road race. |
| 389 | 96 | 44 | 52 | 88 | 320 | 320 | 272 | 264 | .495" | .510" | .024" | .020" | Drag only. | ||
Notes -
- Very large range of profiles available, this is only a selection, please enquire if needed.