Chapter 1: Engines: Oldsmobile V8s: Camshafts

Clevite		Advertised Duration		Duration @ 0.050		Valve lift with 1.60
	*	Intake	Exhaust	Intake	Exhaust	Intake	Exhaust	LSA
260	H	256	276	180	187	.395	.400	112
260-350Diesel	H	284	274	172	192	.376	.376	114
307	H	249	256	178	186	.395	.402	116
307-455	H	279	290	187	200	.400	.402	112
350 Diesel	HR	235	369	166	192	.402	.446	114
S2028	H	280	290	204	214	.448	.472	112
S2073	H	282	292	204	214	.484	.510	112
S2074	H	280	290	204	214	.448	.472	114
S2059	H	290	300	214	224	.472	.496	112
S2014	H	300	310	224	234	.496	.520	112
1200	H	329	329	232	232	.415	.415	113
1644	H	314	314	244	244	.415	.415	110
	* H = Hydraulic, HR = Hydraulic Roller

 

COMP Cams		Advertised Duration		Duration @ 0.050		Valve lift with 1.60
	*	Intake	Exhaust	Intake	Exhaust	Intake	Exhaust	LSA
270 H	H	270	270	224	224	.501	.501	110
280H	H	280	280	230	230	.490	.490	110
292 H	H	292	292	244	244	.518	.518	110
305 H	H	305	305	253	253	.540	.540	110
312 H	H	312	312	260	260	.565	.565	110
320 H	H	320	320	268	268	.565	.565	110
XE250H	H	250	260	206	212	.443	.448	110
XE256H	H	256	268	212	218	.453	.456	110
XE262H	H	262	274	218	224	.475	.480	110
XE268H	H	268	280	224	230	.485	.490	110
XE274H	H	274	286	230	236	.520	.523	110
XE284H	H	284	296	240	246	.541	.544	110
XE294H	H	294	306	250	256	.544	.558	110
XE262HR	HR	262	268	210	216	.505	.505	110
XE276HR	HR	276	282	224	230	.505	.505	110
XE290HR	HR	290	296	236	242	.515	.533	110
285B-8	M	285	294	250	256	.568	.545	108
300B-6	M	300	314	265	276	.600	.594	106
	* H = Hydraulic, HR = Hydraulic Roller, M = Mechanical

 

Crane Cams		Advertised Duration		Duration @ 0.050		Valve lift with 1.60
	*	Intake	Exhaust	Intake	Exhaust	Intake	Exhaust	LSA
PowerMax H-192	H	248	260	192	204	.427	.456	110
PowerMax H-260-2	H	260	272	204	216	.456	.484	112
PowerMax H-272-2	H	272	284	216	228	.484	.512	112
PowerMax H-284-2	H	284	292	222	230	.480	.496	110
PowerMax H-292-2	H	292	296	230	234	.496	.504	110
PowerMax H-238	H	294	304	238	248	.536	.560	110
PowerMax H-244	H	314	322	244	252	.538	.557	110
PowerMax F-238	M	300	310	238	248	.512	.533	110
PowerMax F-248	M	310	320	248	258	.533	.555	108
PowerMax R-252	MR	284	294	252	262	.672	.672	108
PowerMax R-262	MR	294	304	262	272	.672	.672	110
PowerMax R-272	MR	304	314	272	282	.672	.672	110
PowerMax R-282	MR	322	332	282	292	.720	.681	108
	* H = Hydraulic, M = Mechanical, MR = Mechanical Roller

 

Crower		Advertised Duration		Duration @ 0.050		Valve lift with 1.60
	*	Intake	Exhaust	Intake	Exhaust	Intake	Exhaust	LSA
280H	H	280	289	204	214	.450	.474	112
289H	H	289	300	214	224	.474	.498	112
304H	H	304	316	234	244	.520	.542	112
250HDP	H	250	258	192	196	.429	.445	112
260HDP	H	260	266	203	211	.448	.450	112
270HDP	H	270	276	210	219	.451	.474	112
276HDP	H	276	281	215	221	.488	.494	112
280HDP	H	280	286	220	227	.485	.496	112
284HDP	H	284	290	229	236	.520	.528	112
297HDP	H	297	308	237	240	.538	.533	112
311HDP	H	311	316	247	251	.546	.557	112
274FDP	M	274	278	238	242	.526	.539	110
284FDP	M	284	290	248	255	.552	.568	108
300FDP	M	300	308	260	268	.584	.601	108
	* H = Hydraulic, M = Mechanical

 

Edelbrock		Advertised Duration		Duration @ 0.050		Valve lift with 1.60
	*	Intake	Exhaust	Intake	Exhaust	Intake	Exhaust	LSA
Performer Plus 3712	H	280	290	204	214	.448	.472	114
Performer RPM	H	290	300	224	234	.496	.520	112
Performer Plus 2152	H	288	298	214	224	.472	.496	112
	* H = Hydraulic

 

Engle		Advertised Duration		Duration @ 0.050		Valve lift with 1.60
	*	Intake	Exhaust	Intake	Exhaust	Intake	Exhaust	LSA
EP-15/18HYD	H	248	260	207	216	.466	.496	112
EP-16/18HYD	H	256	260	210	216	.472	.488	112
EP-40/43HYD	H	265	271	215	222	.483	.502	112
EP-43/46HYD	H	271	277	222	230	.502	.522	110
EP-46/49HYD	H	277	285	230	238	.522	.542	110
EP-49HYD	H	285	285	238	238	.542	.542	110
	* H = Hydraulic

 

Erson		Advertised Duration		Duration @ 0.050		Valve lift with 1.60
	*	Intake	Exhaust	Intake	Exhaust	Intake	Exhaust	LSA
MP1	H	280	292	208	214	.448	.478	114
TQ20H	H	292	292	214	214	.478	.478	111
MP2	H	292	310	214	226	.478	.493	114
TQ40H	H	284	296	220	228	.504	.504	110
JB100	H	296	306	228	235	.504	.504	112
Hi Flow IV	H	312	320	248	256	.536	.552	110
R-282-1C	MR	282	292	253	263	.640	.640	110
R-298-5	MR	298	306	272	280	.656	.688	104
R-302-8	MR	302	306	276	280	.656	.688	106
	* H = Hydraulic, MR = Mechanical Roller

 

Holley/Lunati		Advertised Duration		Duration @ 0.050		Valve lift with 1.60
	*	Intake	Exhaust	Intake	Exhaust	Intake	Exhaust	LSA
Bracketmaster 080	H	280	290	214	224	.472	.496	112
Bracketmaster 084	H	283	283	220	220	.451	.451	110
Bracketmaster 083	H	290	300	224	234	.496	.520	112
High Effic 6181	H	270	280	204	214	.448	.472	112
High Effic 6185	H	260	260	210	210	.470	.470	110
High Effic 6186	H	268	268	218	218	.490	.490	110
Fact Perf 11800	H	310	310	232	232	.480	.480	113
Fact Perf 11801	H	320	320	244	244	.475	.475	110
Street Master 7181	H	275	275	225	225	.508	.508	108
Street Master 7182	H	285	285	235	235	.540	.540	108
Street Master 7183	H	295	295	245	245	.569	.569	108
StreetStrip 31801	H	285	300	228	235	.496	.496	110
StreetStrip 51803	HR	270	279	209	213	.443	.477	112
StreetStrip 51804	HR	279	287	213	218	.477	.502	112
StreetStrip 51809	HR	287	298	218	226	.502	.512	113
StreetStrip 51810	HR	290	300	232	242	.544	.560	110
StreetStrip	MR	304	304	244	244	.563	.563	110
Drag Race 31803	H	310	310	241	241	.494	.494	110
Drag Race 31805	H	310	320	242	252	.520	.520	110
Drag Race 31806	H	308	308	244	244	.540	.540	110
Drag Race 31815	H	315	325	245	255	.541	.564	108
Drag Race 51808	MR	301	309	268	276	.669	.669	106
Drag Race 51802	MR	318	318	281	281	.688	.688	104
	* H = Hydraulic, HR = Hydraulic Roller, MR = Mechanical Roller

 

Isky		Advertised Duration		Duration @ 0.050		Valve lift with 1.60
	*	Intake	Exhaust	Intake	Exhaust	Intake	Exhaust	LSA
691281	H	280	280	232	232	.517	.517	110
691256	H	256	262	202	208	.450	.445	110
691-TA	H	264	250	208	194	.465	.425	114
691264	H	264	264	214	214	.480	.480	108
691271	H	270	270	221	221	.496	.496	108
691304	H	304	304	256	256	.560	.560	108
691291	H	292	292	244	244	.538	.538	108
691270	H	270	270	216	216	.470	.470	108
691282	H	282	282	224	224	.467	.467	108
691262	H	262	262	208	208	.445	.445	108
	* H = Hydraulic

 

Lazer		Advertised Duration		Duration @ 0.050		Valve lift with 1.60
	*	Intake	Exhaust	Intake	Exhaust	Intake	Exhaust	LSA
2450063	H	245	245	195	195	.437	.437	108
2500063	H	250	250	200	200	.443	.443	108
2550063	H	255	255	205	205	.464	.464	110
2600063	H	260	260	210	210	.477	.477	110
2650063	H	265	365	215	215	.486	.486	110
2700163	H	270	270	220	220	.496	.496	108
2800163	H	280	280	230	230	.523	.523	108
2900163	H	290	295	240	245	.553	.536	108
3000263	H	300	305	250	255	.577	.560	108
	* H = Hydraulic

 

Mondello/Engle		Advertised Duration		Duration @ 0.050		Valve lift with 1.60
	*	Intake	Exhaust	Intake	Exhaust	Intake	Exhaust	LSA
JM 18-20	H	260	266	216	226	.488	.496	112
JM 20-22	H	266	274	226	230	.496	.512	110
JM 22-25	H	274	280	230	236	.512	.523	108
JM22-25-10	H	274	280	230	236	.512	.523	110
JM 34	H	260	256	216	210	.488	.472	114
JM 36	H	280	274	236	230	.523	.512	114
JM 25-28	H	280	292	236	248	.523	.544	108
JM 28-29	H	292	300	248	258	.544	.544	108
JM 30	H	302	314	252	263	.560	.576	106
JM 3-4	H	277	285	230	238	.522	.544	110
JM 4-5	H	285	291	238	246	.542	.558	110
JM 5-6	H	291	300	246	253	.558	.574	110
JM 6-7	H	300	313	253	262	.574	.592	110
JM 30-10	H	302	314	252	263	.560	.576	110
JM 32	H	310	320	266	270	.584	.568	107
JM 32-10	H	310	320	266	270	.584	.568	110
MW-30	H	328	328	244	244	.474	.474	110
MW-31	H	308	308	234	234	.474	.474	113
JM 14-100	H	248	260	204	212	.432	.455	112
JM 15-100	H	254	260	208	212	.467	.446	107
JM 16	H	256	256	210	210	.472	.472	112
JM 16-18	H	256	260	210	216	.472	.488	112
MP-1-2	M	254	262	221	228	.488	.506	110
MP 20-22	M	268	274	232	236	.512	.523	110
MP 22-25	M	274	280	238	246	.523	.541	110
JM 40	M	304	314	264	271	.562	.594	108
JM 42	M	320	320	282	282	.592	.592	108
JM 44	M	314	326	274	286	.600	.600	108
MP 28-29	M	292	302	258	264	.562	.562	110
MP 40	M	304	314	264	271	.562	.594	110
MPV-1-2	M	278	286	244	252	.557	.574	110
MPV-2-3	M	286	294	252	260	.574	.592	110
MPV-3-4	M	294	306	260	269	.592	.614	110
MPV-8-42	M	316	320	278	282	.592	.614	110
MPV-44-S	M	310	318	270	280	.594	.605	110
MPV-4-5	M	306	313	269	277	.614	.634	110
JM-5	MR	318	318	278	278	.704	.704	106
JM5-1	MR	318	318	278	278	.704	.704	110
RH-22	HR	265	265	220	220	.534	.534	110
RH-34	HR	280	280	238	238	.534	.534	110
RH 6-14	HR	252	265	206	214	.510	.520	110
RH 14-22	HR	252	265	214	220	.520	.534	110
RH 44-94	HR	265	280	220	230	.534	.531	110
RH 94-95	HR	280	286	230	236	.531	.538	110
RH 95-96	HR	286	292	236	244	.538	.538	110
MR 2-3-EX	MR	310	313	268	275	.669	.686	110
MR 22-23	MR	267	273	227	237	.550	.558	110
MR 34-36	MR	278	288	238	244	.568	.600	110
MR 36-38	MR	288	294	244	252	.600	.608	110
MR 38-56	MR	294	308	252	258	.608	.566	110
MR 38-83	MR	294	306	252	262	.608	.634	110
MR 83-86	MR	306	311	262	267	.634	.640	110
MR 86-131	MR	308	318	267	276	.640	.640	110
MR 131-32	MR	318	323	276	282	.640	.640	110
	* H = Hydraulic, HR = Hydraulic Roller, M = Mechanical, MR = Mechanical Roller

 

Ultradyne		Advertised Duration		Duration @ 0.050		Valve lift with 1.60
	*	Intake	Exhaust	Intake	Exhaust	Intake	Exhaust	LSA
	H	272	272	217	217	.485	.485	112
	H	276	286	221	230	.485	.485	112
	H	288	296	231	239	.517	.541	110
	H	296	304	239	247	.541	.565	108
	* H = Hydraulic

 

Wolverine		Advertised Duration		Duration @ 0.050		Valve lift with 1.60
	*	Intake	Exhaust	Intake	Exhaust	Intake	Exhaust	LSA
WG1154	H	250	260	184	194	.392	.424	105/115
WG1155	H	260	270	194	204	.424	.448	105/115
WG1112	H	270	280	204	214	.448	.472	107/117
WG1168	H	280	290	214	224	.472	.496	107/117
WG1156	H	284	284	218	218	.488	.488	105/115
	* H = Hydraulic

Downloadable as:
  Rich Text Format (RTF) file --> cam.rtf.
  Excel V7 Format (XLS) file --> cam.xls.