|
|
|
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. | | |||||
195 | 51 | 17 | 17 | 51 | 248 | 248 | 181 | 181 | .330" | .330" | .017" | .010" | Std. Ford. | ||
288 | 64 | 12 | 22 | 54 | 256 | 248 | 188 | 188 | .345" | .351" | .010" | .008" | Std. Kent. | ||
102 | 60 | 20 | 20 | 60 | 260 | 260 | 208 | 208 | .390" | .390" | .028" | .030" | .011" | .011" | Torque. |
113 | 65 | 25 | 25 | 65 | 270 | 270 | 205 | 205 | .398" | .398" | .027" | .033" | .014" | .014" | Mild 2200-5500 rpm. |
154 | 71 | 25 | 31 | 70 | 276 | 281 | 216 | 227 | .398" | .398" | .033" | .054" | .014" | .014" | GT 500 |
293 | 76 | 40 | 40 | 76 | 296 | 296 | 227 | 227 | .345" | .345" | .022" | .020" | Fast road good on springs. | ||
293C | 72 | 30 | 33 | 69 | 282 | 282 | 238 | 238 | .440" | .440" | .057" | .087" | .016" | .016" | Fast road 2750-6500 rpm. |
121 | 75 | 41 | 40 | 77 | 296 | 297 | 240 | 240 | .414" | .414" | .090" | .113" | .012" | .012" | A3 Cosworth. |
140 | 70 | 37 | 37 | 71 | 187 | 188 | 240 | 240 | .450" | .450" | .084" | .091" | .017" | .017 | 3200-7000 rpm. |
285C | 82 | 49 | 55 | 76 | 300 | 300 | 252 | 252 | .507" | .507" | .105" | .122" | .020" | .018" | Road race 4800-8500 rpm. |
185A | 86 | 54 | 54 | 86 | 320 | 320 | 270 | 270 | .435" | .435" | .014" | .014" | A6 Cosworth. | ||
329 | 96 | 76 | 76 | 96 | 352 | 352 | 260 | 260 | .414" | .414" | .015" | .015" | A8 Cosworth. | ||
Notes -
- When using larger profiles the Kent type block is recommended.
- Reground cams may require hard facing.
- Steel cams are available.