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Pontiac Factory Cam Specs


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Pontiac Camshaft Specs

 
    Int.         Exh.        
Application Stamp Dur. CL 1.50:1 1.65:1 O.L. Dur. CL 1.50:1 1.65:1 Part #
1956   289 110.5 .406" .446" 71 298 112 .406" .446" 522869
1959-63 2bbl A 252 112 .324" .356" 38 252 112 .324" .356" 518111
1959-62 4bbl 4 273 106 .407" .447" 55 282 116 .411" .452" 529472
1963-64 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 5 269 108.5 .374" .411" 55 277 109.5 .407" .447" 491255
1974-75 2bbl - 269 108 .374" .411" 59 282 108 .408" .447" 491266
1973-76 2bbl W 269 108.5 .374" .411" 51 277 113.5 .407" .447" 483555
1967-69 2bbl V8 U 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 or 421 C 273 113 .407" .447" 54 289 113 .407" .447" 524009
1978-79 TA 6.6 @ (circled A) 274 118.5 .395" .434" 54 298 108.5 .401" .440" 10003402
1977 Manual T/A 6.6 (WA) ❑ (square) 274 116 .364" .400" 62 298 108 .404" .445" 549431
1977 Auto TA 6.6 (Y6) O 274 121 .364" .401" 55 298 110 .405" .440" 549112
1978 std engine - 274 - .374" .410" - 274 - .374" .410" 527471
1956-62 3/2bbl 6 283 112 .407" .447" 60 293 116 .407" .447" 524886
1963-64 421 HO L 293 113 .407" .447" 63 301 119 .407" .447" 9770543
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

                     
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

Roller Cams

                     
Application Stamp  Int
Dur.
CL 1.50:1 1.65:1 O.L. Exh
Dur.
CL 1.50:1 1.65:1 Part #
1969 RA VI
(and VII?)
  308 110 .531" .586" 91 ? 320 110 .536" .590" P1M310C