Cam Lobes
|
Duration .006"
|
Duration .050"
|
Lift @ 1.6
|
Lobe Number
|
Notes
|
|
230
|
178
|
0.432
|
3100
|
1
|
|
240
|
188
|
0.456
|
3101
|
1
|
|
242
|
191
|
0.416
|
3102
|
1
|
|
244
|
192
|
0.392
|
3322
|
1
|
|
246
|
192
|
0.480
|
3103
|
1
|
|
249
|
198
|
0.424
|
3323
|
1
|
|
252
|
202
|
0.550
|
3010
|
4
|
|
252
|
200
|
0.456
|
3304
|
1
|
|
252
|
200
|
0.504
|
3310
|
1
|
|
254
|
199
|
0.480
|
3104
|
1
|
|
256
|
206
|
0.555
|
3011
|
4
|
|
256
|
200
|
0.496
|
3105
|
1
|
|
256
|
204
|
0.456
|
3305
|
1
|
|
258
|
206
|
0.538
|
3188
|
2
|
|
258
|
206
|
0.488
|
3302
|
1
|
|
258
|
206
|
0.512
|
3311
|
2
|
|
259
|
210
|
0.506
|
3324
|
1
|
|
260
|
210
|
0.560
|
3012
|
4
|
|
260
|
206
|
0.533
|
3118
|
2
|
|
262
|
206
|
0.480
|
3106
|
1
|
|
262
|
210
|
0.488
|
3300
|
1
|
|
263
|
214
|
0.506
|
3326
|
1
|
|
264
|
214
|
0.565
|
3013
|
4
|
|
264
|
212
|
0.546
|
3033
|
2
|
|
264
|
210
|
0.512
|
3050
|
2
|
|
264
|
212
|
0.520
|
3312
|
2
|
|
265
|
216
|
0.506
|
3303
|
1
|
|
266
|
210
|
0.533
|
3107
|
2
|
|
266
|
210
|
0.456
|
3160
|
1
|
|
266
|
214
|
0.565
|
3190
|
4
|
|
266
|
214
|
0.488
|
3301
|
1
|
|
268
|
218
|
0.570
|
3014
|
4
|
|
269
|
220
|
0.506
|
3306
|
1
|
|
270
|
218
|
0.555
|
3034
|
4
|
|
270
|
215
|
0.533
|
3108
|
2
|
|
270
|
218
|
0.528
|
3313
|
2
|
|
273
|
215
|
0.456
|
3168
|
1
|
|
273
|
224
|
0.506
|
3307
|
1
|
|
274
|
224
|
0.573
|
3015
|
4
|
|
274
|
220
|
0.512
|
3051
|
2
|
|
276
|
224
|
0.565
|
3035
|
4
|
|
276
|
220
|
0.544
|
3109
|
2
|
|
276
|
220
|
0.456
|
3161
|
1
|
|
276
|
224
|
0.605
|
3192
|
4
|
|
276
|
224
|
0.536
|
3314
|
2
|
|
279
|
230
|
0.506
|
3308
|
1
|
|
280
|
230
|
0.576
|
3016
|
4
|
|
280
|
224
|
0.560
|
3119
|
4
|
|
281
|
220
|
0.512
|
3114
|
2
|
|
282
|
230
|
0.568
|
3036
|
4
|
|
282
|
230
|
0.622
|
3194
|
4
|
|
282
|
230
|
0.544
|
3315
|
2
|
|
283
|
234
|
0.506
|
3309
|
1
|
|
284
|
230
|
0.512
|
3052
|
2
|
|
284
|
224
|
0.533
|
3110
|
2
|
|
286
|
236
|
0.579
|
3017
|
4
|
|
286
|
230
|
0.598
|
3111
|
4
|
|
288
|
236
|
0.571
|
3037
|
4
|
|
288
|
236
|
0.624
|
3196
|
4
|
|
288
|
236
|
0.555
|
3316
|
4
|
|
290
|
230
|
0.544
|
3112
|
2
|
|
290
|
236
|
0.608
|
3122
|
4
|
|
292
|
242
|
0.584
|
3018
|
4
|
|
292
|
230
|
0.456
|
3162
|
1
|
|
294
|
242
|
0.576
|
3038
|
4
|
|
294
|
242
|
0.576
|
3317
|
4
|
|
296
|
240
|
0.512
|
3053
|
2
|
|
300
|
248
|
0.579
|
3039
|
4
|
|
300
|
248
|
0.600
|
3318
|
4
|
|
302
|
240
|
0.456
|
3163
|
1
|
|
304
|
242
|
0.587
|
3113
|
3
|
|
304
|
244
|
0.640
|
3115
|
3
|
|
304
|
244
|
0.613
|
3120
|
3
|
|
306
|
254
|
0.619
|
3319
|
4
|
|
307
|
244
|
0.576
|
3150
|
3
|
|
312
|
250
|
0.456
|
3164
|
1
|
|
314
|
252
|
0.640
|
3116
|
3
|
|
315
|
248
|
0.576
|
3170
|
3
|
|
318
|
252
|
0.576
|
3151
|
3
|
|
324
|
262
|
0.672
|
3117
|
3
|
|
325
|
258
|
0.576
|
3171
|
3
|
|
329
|
262
|
0.576
|
3152
|
3
|
|
|
|
|
|
|
| 1. LS6 yellow springs recommended. | ||||
| 2. Comp 26915 springs recommended with LS1 seats and either 1992 2.2 or 1992 2 3.1 valve stem seals, depending on the year of the cylinder heads | ||||
| 3. Comp 26986 springs recommended. | ||||
| 4. PAC 1518 springs recommended with machine work to the spring pockets, LS1 seats and 2.2 or 3.1 valve stem seals | ||||