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Small Block Chevy Factory Cams



Camshafts influence your engine's 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 in between the valve lobes.

Part NumberTypeDUR @ .050"LiftC/RLSAUsage
14093643Hyd. Roller202/206 .403"/.415" 8.5:1 115'87 350 Corvette and IROC Camaro
10134334Hyd. Roller235/235 .480"/.480" 9.0:1 114350 ZZZ through ZZ2 crate motors
10185071Hyd. Roller208/221 .474"/.474"9.8:1 112350/345 ZZ3 & ZZ4 crate motor
10224241Hyd. Roller----'92 to'94 Gen. 11 LT1 350
10243779Hyd. Roller----'94 to '96 Gen. II L99 265 V-8
12370845Hyd. Roller214/224 .488"/.509"-112Off-road use, lobe for mech. fuel pump
12370846Hyd. Roller222/230 .509"/.528"-112Off-road use, lobe for mech. fuel pump
12370847Hyd. Roller232/242 .539"/.558"-112Off-road use, lobe for mech. fuel pump
125517051Hyd. Roller201/208 .447"/.459"10.4:1112'95 to '96 Gen. 11 LT1 350, w/center dowel pin
12551142Hyd. Roller203/210 .476"/.480"10.8:1115.5'96 350 LT4 w/1.6:1 roller rockers
24502586Hyd. Roller218/228 .525"/.525"10.8:1-'96 LT4 H.O.T crate motor cam, use
---- -- w/1.6:1 roller rockers.
N/A Hyd. Roller202/210 .472"/.478"10.0:1 11'97 Gen. III LS1 Corvette 350, uses 1.7
------roller rockers and Gen. III
------tapered valve spring
24502476Hyd. 212/220 .435"/.460"9.1:1112.5350/300 CC crate motor
14088843Hyd. 202/206 .403"/.415"8.5:1115'83 to'86 305HO
12364050
3863151Hyd. 221/221.447"/.447"11.0:1 114327/350HP L-79
12364051
3896929Hyd. 195/202 .390"/.410"8.0:1112327/300HP
3896962Hyd. 222/222 .450"/.460"8.5:1114350 L-46, L-82
12353915Hyd. 194/204 .401"/.423"8.0:1104GM/Crane street
12353914Hyd. 180/194 .378"/.401"8.0:1-GM/Crane very high, low-speed torque
12353923Hyd. 224/234 .465"/.448"9.5:1114GM/Crane off-road
12353918Hyd. 214/224 .442"/.465"8.75:1112GM/Crane marine & off-road
12353917Hyd. 204/214 .420"/.442"9.0:1 112GM/Crane non-emissions vehicles & off-road
12353916Hyd.204/214.423"/.446"8.5:1 110GM/Crane 50 state legal 305-350
12364052
3849346Mech. 254/254 .485"/.485" 11.0:1 114327/365HP & Z-28 302
12364053
3927140Mech. 257/269 .493"/.512" 12.0:1 112Off-road
12364054
3972178
3972182Mech. 242/254.459"/.485" 11.0:1 116'70 LT1 360 to 370HP
"" "" 9.0:1 11671 LT1 330HP
3965724Mech. 262/273 .488"/.509"12.5:11122nd design, short track, road race
Key to table:
DUR = Duration, C/R = Compression ratio of engine used in (stock), LSA = Lobe Separation Angle.


Last updated: 9/14/2006
Author: MadMike Maciolek

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