2011 - Crane Cams
2011 - Crane Cams
2011 - Crane Cams
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CAMSHAFTS<br />
Chevrolet V-8 67-95<br />
126<br />
Application<br />
Mechanical Lifter <strong>Cams</strong>hafts<br />
Excellent low end and mid range torque and HP, fair<br />
idle, moderate performance usage, bracket racing w/<br />
heavy car, off road, auto trans w/2000+ converter,<br />
3200-3600 cruise RPM, 10.5 to 11.5 compression ratio<br />
advised.<br />
Good low end and mid range torque and HP, fair idle,<br />
moderate performance usage, bracket racing, auto<br />
trans w/2000+ converter, also w/plate or manifold<br />
nitrous system, 3400-3800 cruise RPM, 10.5 to 11.5<br />
compression ratio advised. Good w/centrifugal or<br />
Roots supercharger, 10 lbs. maximum boost w/8.5<br />
maximum compression ratio advised.<br />
Replacement for factory 375 HP 396 cu.in., 425 HP<br />
427 cu.in., 435 HP 427 cu.in., 460 HP 454 cu.in. camshaft.<br />
Good low end and mid range torque and HP, fair idle,<br />
moderate performance usage, bracket racing, auto<br />
trans w/2000+ converter, 3600-4000 cruise RPM, 10.5<br />
to 11.5 compression ratio advised.<br />
Good mid range torque and HP, fair idle, moderate<br />
performance usage, bracket racing, auto trans<br />
w/2500+ converter, good w/plate or manifold nitrous<br />
system, 3600-4000 cruise RPM, 10.75 to 12.0 compression<br />
ratio advised. Good w/centrifugal or Roots<br />
supercharger, 14 lbs. maximum boost w/8.5 maximum<br />
compression ratio advised.<br />
Good mid range torque & HP, rough idle, moderate<br />
performance usage, auto trans w/2500+ converter,<br />
3800-4200 cruise RPM, bracket racing: Pro E.T., Super<br />
E.T., Super Pro, Hot Rod, auto trans w/race converter;<br />
oval track; Street Stock, Modified, etc., 1/4-3/8 mile, &<br />
marine performance usage in 454-502 cu.in. modified<br />
engines w/aftermarket high flow above water exhaust<br />
systems. 11.0 to 12.0 compression ratio advised.<br />
Good mid range torque and HP, performance usage,<br />
fair idle, bracket racing, auto trans w/3000+ converter,<br />
4000-4400 cruise RPM, 11.25 to 12.25 compression<br />
ratio advised.<br />
Good mid range torque and HP, performance usage,<br />
fair idle, bracket racing, auto trans w/3000+ converter,<br />
4000-4400 cruise RPM, good w/manifold nitrous<br />
system, 11.5 to 12.5 compression ratio advised. Good<br />
w/Roots supercharger, 18 lbs. max. boost w/8.0 max.<br />
compression ratio 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-238/3200-2-8 2600-<br />
6200<br />
F-304-2 2800-<br />
6600<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 />
131101 *a 99250-16 238 300 108 16 42 .022 .544<br />
248 310 57 11 .022 .567<br />
3<br />
133841 99250-16 238 304 114 10 48 .022 .544<br />
248 314 63 5 .022 .567<br />
3<br />
BluePrinted 3000- 969961 99250-16 242 114 13 49 .024 .520<br />
3863143 6400<br />
242 61 1 .028 .520<br />
F-244/3454-2S-8 3200-<br />
6600<br />
F-244/3454-2S-14 3400-<br />
6800<br />
1<br />
131111 * 99250-16 244 280 108 18 46 .026 .587<br />
252 288 58 14 .026 .608<br />
3<br />
131121 * 99250-16 244 280 114 12 52 .026 .587<br />
252 288 64 8 .026 .608<br />
3<br />
Saturday Night Special 3400- 134781<br />
7000<br />
* 99250-16 248 314 110 19 49 .022 .567<br />
F-314-2 134782 *a 258 324 64 14 .022 .590<br />
F-252/3574-2S-8 3600-<br />
7000<br />
F-252/3574-2S-14 3600-<br />
7200<br />
3<br />
131131 * 99250-16 252 288 108 21 51 .026 .608<br />
260 296 61 19 .026 .628<br />
3<br />
131271 * 99250-16 252 288 114 16 56 .026 .608<br />
260 296 68 12 .026 .628<br />
3
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