Small Block Chevy Factory Cams
Camshafts have the most influence on your engines power output since they control how your engine will run.
Camshafts are identified by (usually) the last 4 digits of the part number and a casting symbol. These markings will usually be in the center of the camshaft, obviously inbetween the valve lobes.
Key to table:
DUR = Duration, C/R = Compression ratio of engine used in (stock), LSA = Lobe Separation Angle.
For a description of these technical terms, and camshafts in general
click here.
Part Number | Type | DUR @ .050" | Lift | C/R | LSA | Usage | 14093643 | Hyd. Roller | 202/206 | .403"/.415" | 8.5:1 | 115 | '87 350 Corvette and IROC Camaro | 10134334 | Hyd. Roller | 235/235 | .480"/.480" | 9.0:1 | 114 | 350 ZZZ through ZZ2 crate motors | 10185071 | Hyd. Roller | 208/221 | .474"/.474" | 9.8:1 | 112 | 350/345 ZZ3 & ZZ4 crate motor | 10224241 | Hyd. Roller | - | - | - | - | '92 to'94 Gen. 11 LT1 350 | 10243779 | Hyd. Roller | - | - | - | - | '94 to '96 Gen. II L99 265 V-8 | 12370845 | Hyd. Roller | 214/224 | .488"/.509" | - | 112 | Off-road use, lobe for mech. fuel pump | 12370846 | Hyd. Roller | 222/230 | .509"/.528" | - | 112 | Off-road use, lobe for mech. fuel pump | 12370847 | Hyd. Roller | 232/242 | .539"/.558" | - | 112 | Off-road use, lobe for mech. fuel pump | 125517051 | Hyd. Roller | 201/208 | .447"/.459" | 10.4:1 | 112 | '95 to '96 Gen. 11 LT1 350, w/center dowel pin | 12551142 | Hyd. Roller | 203/210 | .476"/.480" | 10.8:1 | 115.5 | '96 350 LT4 w/1.6:1 roller rockers | 24502586 | Hyd. Roller | 218/228 | .525"/.525" | 10.8:1 | - | '96 LT4 H.O.T crate motor cam, use | - | - | - | - | - | - | w/1.6:1 roller rockers. | N/A | Hyd. Roller | 202/210 | .472"/.478" | 10.0:1 | 11 | '97 Gen. III LS1 Corvette 350, uses 1.7 | - | - | - | - | - | - | roller rockers and Gen. III | - | - | - | - | - | - | tapered valve spring | 24502476 | Hyd. | 212/220 | .435"/.460" | 9.1:1 | 112.5 | 350/300 CC crate motor | 14088843 | Hyd. | 202/206 | .403"/.415" | 8.5:1 | 115 | '83 to'86 305HO | 12364050 | 3863151 | Hyd. | 221/221 | .447"/.447" | 11.0:1 | 114 | 327/350HP L-79 | 12364051 | 3896929 | Hyd. | 195/202 | .390"/.410" | 8.0:1 | 112 | 327/300HP | 3896962 | Hyd. | 222/222 | .450"/.460" | 8.5:1 | 114 | 350 L-46, L-82 | 12353915 | Hyd. | 194/204 | .401"/.423" | 8.0:1 | 104 | GM/Crane street | 12353914 | Hyd. | 180/194 | .378"/.401" | 8.0:1 | - | GM/Crane very high, low-speed torque | 12353923 | Hyd. | 224/234 | .465"/.448" | 9.5:1 | 114 | GM/Crane off-road | 12353918 | Hyd. | 214/224 | .442"/.465" | 8.75:1 | 112 | GM/Crane marine & off-road | 12353917 | Hyd. | 204/214 | .420"/.442" | 9.0:1 | 112 | GM/Crane non-emissions vehicles & off-road | 12353916 | Hyd. | 204/214 | .423"/.446" | 8.5:1 | 110 | GM/Crane 50 state legal 305-350 | 12364052 | 3849346 | Mech. | 254/254 | .485"/.485" | 11.0:1 | 114 | 327/365HP & Z-28 302 | 12364053 | 3927140 | Mech. | 257/269 | .493"/.512" | 12.0:1 | 112 | Off-road | 12364054 | 3972178 | 3972182 | Mech. | 242/254 | .459"/.485" | 11.0:1 | 116 | '70 LT1 360 to 370HP | " | " | " | " | 9.0:1 | 116 | 71 LT1 330HP | 3965724 | Mech. | 262/273 | .488"/.509" | 12.5:1 | 112 | 2nd design, short track, road race |