2011 - Crane Cams
2011 - Crane Cams
2011 - Crane Cams
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CAMSHAFTS<br />
Pontiac V-8 55-81<br />
276<br />
Application<br />
Hydraulic Lifter <strong>Cams</strong>hafts<br />
Brute low-end torque, smooth idle, daily usage, fuel<br />
economy, 1600-2200 cruise RPM, 7.75 to 8.75 compression<br />
ratio advised.<br />
Good low end torque, smooth idle, daily usage, towing,<br />
economy, also mild turbocharged, 2200-2600 cruise<br />
RPM, 8.0 to 9.5 compression ratio advised.<br />
Replacement for factory Ram Air or H.O. 400 cu.in. “S”<br />
camshaft.<br />
Strong mid range torque, good idle, daily usage, off road,<br />
highway towing, fuel efficiency plus performance, 2600-<br />
3000 cruise RPM, 8.75 to 10.0 compression ratio advised.<br />
Good low and mid range torque, good idle, daily usage,<br />
towing, performance and fuel efficiency, 2600-3000<br />
cruise RPM, 8.75 to 10.5 compression ratio advised.<br />
Good low and mid range torque and HP, good idle, daily<br />
usage, towing, performance and fuel efficiency, 2400-<br />
3200 cruise RPM, 8.75 to 10.5 compression ratio advised.<br />
Good mid range torque and HP, excellent for 455 SD, fair<br />
idle, moderate performance usage, mild bracket racing,<br />
3000-3400 cruise RPM, 9.5 to 10.75 compression ratio<br />
advised.<br />
Good mid range torque and HP, fair idle, moderate performance<br />
usage, mild bracket racing, auto trans<br />
w/2500+ converter, 3400-3800 cruise RPM, 9.5 to 11.0<br />
compression ratio advised. Good w/plate nitrous system.<br />
<strong>Cams</strong>haft Series/<br />
Grind Number<br />
RPM<br />
POWER<br />
RANGE<br />
H-192/2667-2S-12 800-<br />
4200<br />
H-260-2 1200-<br />
4800<br />
<strong>Cams</strong>haft<br />
PARTNUMBER/<br />
EmissionsCode<br />
CRANECAMS.COM<br />
265 (4.3L)-287-301 (4.9L)-316-326-347-350-<br />
370-389-400 (6.6L)-421-428-455 cu.in.<br />
See pg. 293<br />
LIFTERS<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 />
Gross<br />
Lift<br />
Int.<br />
Exh.<br />
280511 * 99282-16 c 192 248 112 (11) 23 .000 .400<br />
204 260 39 (15) .000 .427<br />
3<br />
283901 * 99282-16 c 204 260 112 (5) 29 .000 .427<br />
283902 *a 216 272 49 (9) .000 .454<br />
3<br />
BluePrinted 1600- 968781 99282-16<br />
5000<br />
c 212 115.5 (7) 39 .000 .408<br />
9779068<br />
1<br />
225 50.5 (5.5) .000 .407<br />
Energizer 1800- 10507<br />
5200<br />
* 99282-16c 216 272 110 3 33 .000 .454<br />
272 H10 105072 *b 216 272 43 (7) .000 .454<br />
H-272-2 1800-<br />
5400<br />
Z-268-2 1800-<br />
5600<br />
H-278-2 2000-<br />
5600<br />
H-288-2 2400-<br />
6000<br />
3<br />
283941 * 99282-16c 216 272 112 1 35 .000 .454<br />
283942 *a 228 284 51 (3) .000 .480<br />
3<br />
283511 * 99282-16c 218 268 112 2 36 .000 .459<br />
283512 *a 224 274 49 (5) .000 .473<br />
3<br />
283801 * 99282-16c 222 278 114 2 40 .000 .467<br />
283802 *a 99382-16 *d 234 290 56 (2) .000 .494<br />
3<br />
283951 * 99282-16c 226 288 114 4 42 .000 .458<br />
283952 *a 99382-16 *d 234 296 56 (2) .000 .473<br />
Good mid range HP, fair idle, moderate performance<br />
usage, mild bracket racing, auto trans w/2500+ converter,<br />
3400-3800 cruise RPM, 9.5 to 11.0 compression ratio<br />
advised.<br />
Energizer 2800-<br />
6200<br />
3<br />
10508 * 99282-16c 284 H12 105082<br />
228 284 112 7 41 .000 .480<br />
*b 99382-16 *d 3<br />
228 284 51 (3) .000 .480<br />
Replacement for factory Ram Air IV “T” camshaft. BluePrinted 2600- 969681 99282-16<br />
6000<br />
c 230 113.5 2 48 .000 .469<br />
9794041 99382-16 *d 1<br />
240 54 6 .000 .469<br />
Good mid to upper RPM torque and HP, fair idle, moderate<br />
performance usage, mild bracket racing, auto trans<br />
w/2500+ converter, 3400-4000 cruise RPM, 9.5 to 11.0<br />
compression ratio advised. Good w/plate nitrous system.<br />
Performance usage, good mid range torque and HP,<br />
bracket racing, auto trans with 3000+ converter, good<br />
with aftermarket cylinder heads, 9.5 to 11.5 compression<br />
ratio advised.<br />
RPM range shown is for average usage. These cam profiles<br />
will RPM higher, depending upon application.<br />
IMPORTANT: Adjustable Vacuum Advance Kit available. See page<br />
333 for details.<br />
NOTE: In order to effect valve adjustment when using mechanical<br />
lifter and roller lifter camshafts, and to provide the most<br />
accurate adjustment on hydraulic lifter camshafts, a set of<br />
positive locking nuts, such as 99768-16, must be obtained<br />
for the rocker arm studs.<br />
Z-280-2 2600-<br />
6400<br />
H-234/325-10 3000-<br />
6400<br />
283521 * 99282-16 c 230 280 112 8 42 .000 .486<br />
283522 *a 99382-16 *d 240 290 57 3 .000 .494<br />
3<br />
280441 * 99282-16c 234 304 110 12 42 .000 .488<br />
99382-16 *d 234 304 52 2 .000 .488<br />
NOTE: Specify if casting number 540306, 544127, or 9771980<br />
heads with 1.65 ratio rocker arms are being used, as different<br />
valve springs will be required.<br />
NOTE: Be sure to maintain at least .040” clearance between the<br />
underside of the rocker arm and valve spring retainer when<br />
the valve is closed.<br />
3<br />
Since 1975 General Motors divisions have exchanged engines<br />
throughout different models. Be certain of exactly which<br />
engine you have before ordering.
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