LS SERIES
HYDRAULIC ROLLER CAM PROFILE GUIDE Crane Cams’ Master Catalog has an extensive list of camshafts made specifically for the LS engine family. Due to the simple fact that unique applications do occur, and new cam profiles are developed, there may be certain combinations that are not found in our standard listing. Crane Cams provides the service to custom grind camshafts for your specific needs. This provides you with the ability use the latest lobe designs, mix and match profile combinations, change lobe separation angles and
alter the amount of centerline advance to arrive at what your engine requires. This guide lists all hydraulic roller profile designs that are available for LS engines (using 55mm/2.165” diameter journals). The lobe profiles in this guide are grouped into design families. Then the data is compiled in vertical columns with a title for each, explaining the information it contains. For additional information contact our Tech. Support Department at 866.388.5120 or tech@cranecams.com.
Profile Data Profile Designation Code
LSHR1
Advertised Dur. @ .004” Tappet Lift
Dur. @ .050” Tappet Lift
Tappet Lift @ Top Dead Center Dur. @ .200” Tappet Lift
Lobe Lift
104 Deg. Intake
Gross Valve Lift with Zero Lash with Theoretical Rocker Ratio as Shown
114 Deg. Exhaust
1.70
Hydraulic Roller Series, LS Engine Family, Using Stock Valve Springs
HR-200/292
262°
200°
114°
.292
.039
.021
.496
HR-200/294
258°
200°
112°
.294
.040
.020
.500
HR-206/294
270°
206°
118°
.294
.047
.026
.500
HR-208/2941
272°
208°
119°
.2941
.049
.028
.500
HR-214/294
278°
214°
123°
.294
.058
.034
.500
HR-216/294
280°
216°
124°
.294
.061
.036
.500
LSHR2
1.80
Hydraulic Roller Series, Chevrolet LS Engine Family, with Increased Ramp Rates and More Area Under the Curve
HR-204/324
264°
204°
126°
.324
.044
.023
.551
.583
HR-208/312
276°
208°
121°
.312
.050
.030
.530
.562
HR-210/312
272°
210°
127°
.312
.052
.029
.530
.562
HR-212/324
272°
212°
132°
.324
.055
.031
.551
.583
HR-216/312
284°
216°
128°
.312
.060
.037
.530
.562
HR-216/324
278°
216°
134°
.324
.061
.036
.551
.583
HR-218/324
280°
218°
135°
.324
.065
.038
.551
.583
HR-222/312
284°
222°
135°
.312
.071
.043
.530
.562
HR-222/324
284°
222°
138°
.324
.071
.043
.551
.583
HR-228/324
290°
228°
143°
.324
.081
.051
.551
.583
HR-232/350
288°
232°
153°
.350
.085
.060
.595
.630
HR-234/324
296°
234°
147°
.324
.092
.059
.551
.583
HR-236/352
292°
236°
156°
.352
.093
.067
.598
.634
HR-237/355
293°
237°
157°
.355
.095
.068
.604
.639
HR-238/324
300°
238°
149°
.324
.098
.065
.551
.583
HR-242/3585
298°
242°
162°
.3585
.105
.077
.609
.645
HR-250/341
314°
250°
161°
.341
.117
.082
.580
.614
HR-256/350
312°
256°
171°
.350
.130
.101
.595
.630
HR-258/341
322°
258°
167°
.341
.131
.095
.580
.614
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