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Pontiac Camshaft Specs
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Int.
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Exh.
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Application
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Stamp
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Dur.
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CL
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1.50:1
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1.65:1
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O.L.
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Dur.
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CL
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1.50:1
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1.65:1
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Part #
|
| 1959-63 2bbl |
A |
252 |
112 |
.324" |
.356" |
38 |
252 |
112 |
.324" |
.356" |
518111 |
| 1959-64 4bbl |
D |
273 |
106 |
.407" |
.447" |
55 |
282 |
116 |
.411" |
.452" |
529472 |
| 1965-76 V8 |
N |
273 |
107 |
.407" |
.447" |
55 |
283 |
116 |
.407" |
.447" |
9779066 |
| 1973-74 2bbl |
5 (S?) |
269 |
108.5 |
.374" |
.411" |
55 |
277 |
109.5 |
.407" |
.447" |
491255 |
| 1973-76 2bbl |
W |
269 |
108.5 |
.374" |
.411" |
51 |
277 |
113.5 |
.407" |
.447" |
483555 |
| 1967-69 2bbl V8 |
- |
269 |
112.5 |
.375" |
.413" |
47 |
277 |
113.5 |
.410" |
.454" |
9777254 |
| 1975-76 V8 |
- |
269 |
112.5 |
.374" |
.411" |
47 |
277 |
113.5 |
.407" |
.447" |
483555 |
| 1965-76 4bbl |
P |
273 |
112 |
.407" |
.447" |
54 |
289 |
113 |
.407" |
.447" |
9779067 |
| 1964 GTO 421 |
C |
273 |
113 |
.407" |
.447" |
54 |
289 |
113 |
.407" |
.447" |
524009 |
| 1977 std engine |
- |
264 |
- |
.364" |
.400" |
- |
264 |
- |
.364" |
.410" |
549431 |
| 1978 std engine |
- |
274 |
- |
.374" |
.410" |
- |
274 |
- |
.374" |
.410" |
512471 |
| 1978-79 T/A 6.6 |
- |
274 |
- |
.364" |
.400" |
- |
298 |
- |
.407" |
.447" |
549112 |
| 1956-62 3/2bbl |
6 |
283 |
112 |
.407" |
.447" |
60 |
293 |
116 |
.407" |
.447" |
524886 |
| 1963-64 421 HO |
L |
288 |
113 |
.407" |
.447" |
63 |
301 |
119 |
.407" |
.447" |
9770523 |
| 1965-72 HO |
S |
288 |
113 |
.407" |
.447" |
63 |
302 |
119 |
.407" |
.447" |
9779068 |
| 1966-69 RA |
H |
301 |
113 |
.407" |
.447" |
76 |
313 |
118 |
.407" |
.447" |
9785744 |
| 1973-74 455SD |
Y |
301 |
113 |
.407" |
.447" |
76 |
313 |
118 |
.407" |
.447" |
493323 |
| 1968L-70 RAIV |
T |
308 |
112 |
.470" |
.516" |
87 |
320 |
115 |
.470" |
.516" |
9794041 |
| (1973 455 SD) |
K |
308 |
112 |
.470" |
.516" |
87 |
320 |
115 |
.470" |
.516" |
480737 |
Mechanical Cams
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| 1969 RAV |
V |
308 |
112 |
.453" |
.498" |
87 |
320 |
115 |
.447" |
.492" |
545713 |
| 1960 389 SD |
7 |
300 |
112 |
.405" |
.447" |
75 |
304 |
115 |
.404" |
.446" |
535480 |
| 1961-62 389 SD |
8 |
308 |
112 |
.405" |
.447" |
83 |
312 |
115 |
.404" |
.446" |
540233 |
| 1962-63 421 SD |
10 |
308 |
112 |
.405" |
.447" |
87 |
320 |
115 |
.404" |
.446" |
541596 |
| 1963 421 SD |
11 |
312 |
112 |
.405" |
.447" |
91 |
324 |
115 |
.404" |
.446" |
542992 |
| 1963 421 SD |
12 |
308 |
112 |
.405" |
.447" |
89 |
324 |
115 |
.404" |
.446" |
545319 |
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