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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. | | |||||
300AT | 65 | 15 | 20 | 60 | 260 | 260 | 203 | 203 | .454" | .454" | H | H | Torque. | ||
422 | 65 | 19 | 11 | 65 | 264 | 264 | 208 | 208 | .410" | .0390" | H | H | Std. 351 Windsor. | ||
113HT | 70 | 20 | 25 | 65 | 270 | 270 | 207 | 207 | .430" | .430" | H | H | |||
343B | 70 | 30 | 30 | 70 | 280 | 280 | 220 | 220 | .479" | .479" | H | H | |||
1041 | 84 | 26 | 36 | 74 | 290 | 290 | .435" | .435" | H | H | Fast road. | ||||
140HT | 75 | 32 | 37 | 71 | 287 | 287 | 240 | 240 | .492" | .492" | H | H | |||
608C | 76 | 38 | 38 | 76 | 294 | 294 | 242 | 242 | .480" | .480" | H | H | |||
414C | 82 | 48 | 48 | 82 | 310 | 310 | 252 | 252 | .490" | .490" | H | H | Drag. | ||
Notes -
- Camshafts available in 302 and 351 firing order.
- Reground camshafts in stock.
- Steel camshafts available with hardened journals for roller bearings.
- For solid lifter profiles see Chevrolet Small Block.