2011 - Crane Cams
2011 - Crane Cams
2011 - Crane Cams
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CAMSHAFTS<br />
Chevrolet V-8 67-95<br />
130<br />
Application<br />
Mechanical Lifter <strong>Cams</strong>hafts<br />
Moderate competition only, good upper RPM HP,<br />
454+ cu.in., bracket racing, auto trans w/race converter,<br />
also good w/large manifold nitrous system,<br />
12.0 minimum compression ratio advised. Good w/<br />
large Roots supercharger, 20 lbs. maximum boost<br />
w/8.0 maximum compression ratio advised.<br />
Moderate competition only, good upper RPM HP,<br />
bracket racing, auto trans w/race converter, 12.0 minimum<br />
compression ratio advised.<br />
Moderate competition only, good upper RPM HP,<br />
460+ cu.in. bracket racing, auto trans w/race converter,<br />
12.5 minimum compression ratio advised.<br />
Moderate competition only, good upper RPM HP,<br />
bracket racing, auto trans w/race converter, 12.5 minimum<br />
compression ratio advised.<br />
Competition only, good upper RPM HP, 500+ cu.in.,<br />
bracket racing, auto trans w/race converter, also good<br />
w/large manifold nitrous system, 12.5 minimum compression<br />
ratio advised. Good w/large Roots supercharger,<br />
22 lbs. maximum boost w/8.0 maximum<br />
compression ratio advised.<br />
Competition only, good upper RPM HP, bracket racing,<br />
auto trans w/race converter, 12.5 minimum compression<br />
ratio advised.<br />
Radical competition only, good high RPM HP, flat tappet<br />
restricted classes, 540+ cu.in., 13.0 minimum<br />
compression ratio advised.<br />
Radical competition only, good high RPM HP, flat tappet<br />
restricted classes, 540+ cu.in., good w/manifold<br />
ntrous system, 13.0 minimum compression ratio<br />
advised. Good w/Roots supercharger, 26 lbs. maximum<br />
boost w/8.5 maximum compression ratio<br />
advised.<br />
<strong>Cams</strong>haft Series/<br />
Grind Number<br />
RPM range shown is for average usage. These cam profiles<br />
will RPM higher, depending upon application.<br />
IMPORTANT NOTE: 1991-95 GenV engines can use these camshafts<br />
and components if they are converted to adjustable<br />
rocker arms by machining the cylinder heads for 99157-16<br />
7/16”screw-in studs and 13650-1 pushrod guideplates, and<br />
installing appropriate rocker arms.<br />
IMPORTANT: AdjustableVacuum Advance Kits available. See page<br />
333 for details.<br />
NOTE: In order to use these cams in 65-66 engines, you must<br />
groove the center of the rear cam bearing journal, 3/16”<br />
wide and 7/64”deep.<br />
RPM<br />
POWER<br />
RANGE<br />
F-266/3528-2-14 4400-<br />
8000<br />
F-268/3814-2S-8 4600-<br />
7800<br />
F-270/3867-2S-10 4600-<br />
8000<br />
F-316-2 4800-<br />
8000<br />
F-272/3874-2S-14 4600-<br />
8200<br />
<strong>Cams</strong>haft<br />
PART NUMBER/<br />
Emissions Code<br />
See pg. 293<br />
LIFTERS<br />
NOTE: <strong>Cams</strong>hafts with SFO firing order (1-8-7-3-6-5-4-2, or<br />
4/7 swap), are available on special order. Contact <strong>Crane</strong>’s<br />
Performance Consultants for details.<br />
IMPORTANT NOTE: Some 1973 thru 1981 454 cu.in. engines were<br />
equipped with exhaust valve rotators. In these instances<br />
when using dual valve springs, use either our 99459-8<br />
Spring Seat Spacers or 4 of 99948-2 valve spring retainers<br />
(on the exhaust valves only) to prevent excessive valve<br />
spring shimming when eliminating the rotators. Some later<br />
engines were equipped with rotators on both the intake and<br />
exhaust valves. For these applications when using dual valve<br />
springs, use either 2 of our 99459-8 Spring Seat Spacers or<br />
CRANECAMS.COM<br />
396-402-427-454 cu.in.<br />
COMPLETE CAM SPECIFICATIONS<br />
Degrees<br />
Duration<br />
@ .050”<br />
Int/Exh.<br />
Advertised<br />
Degrees<br />
Duration<br />
Int/Exh.<br />
Degrees<br />
Lobe<br />
Separation<br />
Open/Close<br />
@ .050”<br />
Cam Lift<br />
Int/Exh<br />
Lash<br />
Hot<br />
Int.<br />
Exh.<br />
our 99948-16 valve spring retainers to prevent excessive<br />
valve spring shimming when eliminating the rotators.<br />
Since 1975, General Motors divisions have exchanged engines<br />
throughout different models. Be certain of exactly which<br />
engine you have before ordering.<br />
Gross<br />
Lift<br />
Int.<br />
Exh.<br />
131151 * 99250-16 266 302 114 22 64 .026 .600<br />
276 312 75 21 .026 .620<br />
3<br />
131541 * 99250-16 268 304 108 29 59 .026 .648<br />
276 312 69 27 .026 .669<br />
3<br />
131161 * 99250-16 270 300 110 29 61 .012 .657<br />
276 312 71 25 .026 .620<br />
3<br />
134771 * 99250-16 272 316 110 30 62 .026 .659<br />
280 324 74 26 .026 .679<br />
1<br />
131291 * 99250-16 272 308 114 26 66 .026 .659<br />
280 316 78 22 .026 .679<br />
3<br />
F-276/3934-2S-8 4800- 131641<br />
8200<br />
* 99250-16 276 312 108 34 62 .026 .669<br />
F-276/3934-2S-8 SFO 131171 * 284 320 74 30 .026 .689<br />
F-280/3994-2S-10 5000-<br />
8400<br />
F-280/3994-2S-14 5200-<br />
8400<br />
3<br />
131761 * 99250-16 280 316 110 33 67 .026 .679<br />
288 324 77 31 .026 .699<br />
3<br />
131181 * 99250-16 280 316 114 30 70 .026 .679<br />
288 324 82 26 .026 .699<br />
3
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