2011 - Crane Cams

CAMSHAFTS
Ford-Mercury V-8 63-76
244
Application
Hydraulic Lifter Camshafts
Brute low end torque, F-150 pickup, smooth idle, daily
usage, fuel economy, 1600-2200 cruise RPM, 7.75 to 8.75
compression ratio advised.
Good low end torque, smooth idle, daily usage, off road,
towing, economy, also mild turbocharged, 2200-2600
cruise RPM, 8.0 to 9.5 compression ratio advised.
Good low and mid range torque, smooth idle, daily
usage, light towing, off road, 2200-2700 cruise RPM, 8.5
to 10.0 compression ratio advised.
Good mid range torque, good idle, daily usage, off road,
highway towing, fuel efficiency plus performance, 2600-
3000 cruise RPM, 8.75 to 10.5 compression ratio advised.
Good low and mid-range torque, good idle, daily usage
and off road, towing, performance and fuel efficiency,
2600-3000 cruise RPM, 8.75 to 10.75 compression ratio
advised.
Replacement for over-the-counter Ford Factory
Performance camshaft (also referred to as SK-39789)
Good mid-range torque, good idle, daily performance
usage, mild bracket racing, 3000-3400 cruise RPM, 9.5 to
10.75 compression ratio advised.
Good mid-range torque and HP, fair idle, moderate performance
usage, bracket racing, 3200-3600 cruise RPM, 9.5
to 11.0 compression ratio advised.
Fair idle, performance usage, good mid-range HP, 3800-
4200 cruise RPM, 10.0 to 11.5 compression ratio advised.
Rough idle, performance usage, good mid-range and
upper RPM torque and HP, auto trans w/2500+ converter,
good with aftermarket aluminum cylinder heads, 3600-
4000 cruise RPM, 10.0 to 11.5 compression ratio advised.
Performance usage, good upper RPM torque and HP,
bracket racing, auto trans w/3500+ converter, good with
aftermarket aluminum cylinder heads, 10.5 to 12.0 compression
ratio advised.
RPM range shown is for average usage. These cam profiles
will RPM higher, depending upon application.
IMPORTANT: Adjustable Vacuum Advance Kit available. See page
333 for details.
NOTE: Specify if late 62-406 cu.in. or 63-76 block is used, as the
cam is different than the one used in 58-62 block.
NOTE: All grinds shown use the stock Ford 1.76 ratio adjustable
rocker arms - Ford part number B8A-6564-B or Crane
adjustable ductile iron rocker arms, 34772-16, in order to
achieve the listed gross valve lift figures.
Camshaft Series/
Grind Number
RPM
POWER
RANGE
H-248-2 800-
4200
H-260-2 1200-
4800
Camshaft
PART NUMBER/
Emissions Code
CRANECAMS.COM
352-360-390-406-410-427-428 cu.in.
See pg. 293
LIFTERS
COMPLETE CAM SPECIFICATIONS
Degrees
Duration
@ .050”
Int/Exh.
Advertised
Degrees
Duration
Int/Exh.
Degrees
Lobe
Separation
Open/Close
@ .050”
Cam Lift
Int/Exh
Lash
Hot
Int.
Exh.
Gross
Lift
Int.
Exh.
343971 * 99281-16 192 248 114 (13) 25 .000 .469
204 260 41 (17) .000 .501
3
343901 * 99281-16 204 260 112 (5) 29 .000 .501
343902 *a 216 272 45 (9) .000 .533
Energizer 1400-
3
13404
4800
* 99281-16 210 266 110 0 30 .000 .516
266 H10 134042 *a 210 266 40 (10) .000 .516
Energizer 1800-
3
13405
5200
* 99281-16 216 272 110 3 33 .000 .533
272 H10 134052 *a 216 272 43 (7) .000 .533
H-272-2 1800-
5200
3
343941 * 99281-16 216 272 112 1 35 .000 .533
343942 *a 228 284 51 (3) .000 .563
BluePrinted 1800-
3
340301 99281-16 220 278 116 (1) 41 .000 .498
C8AX-6250-C 5200
230 290 56 (6) .000 .498
H-278-2 2000-
5400
H-288 2200-
5600
H-296-2 2800-
6200
H-298 3000-
6500
H-246/330-10 3400-
6800
1
343801 * 99281-16 222 278 114 2 40 .000 .548
343802 *a 99381-16 *b 234 290 56 (2) .000 .580
3
344341 * 99281-16 226 288 112 6 40 .000 .537
344342 *a 99381-16 *b 226 288 50 (4) .000 .537
3
344621 * 99281-16 234 296 112 10 44 .000 .554
99381-16 *b 238 300 56 2 .000 .563
3
344561 * 99281-16 236 298 108 15 41 .000 .572
99381-16 *b 236 298 51 5 .000 .572
3
340721 * 99281-16 246 308 110 18 48 .000 .581
99381-16 *b 246 308 58 8 .000 .581
NOTE: To provide the most accurate valve adjustment on hydraulic
lifter camshafts, the use of Crane adjustable rocker arms
(34772-16 or 34791-1) and appropriate pushrods
(34621-16 or 95819-16) is highly recommended.
NOTE: Many 1972 and later Ford-Mercury V-8 engines are
originally equipped with a retarded crankshaft sprocket.
This may cause idling and performance problems when
installing aftermarket camshafts. We recommend using a
pre-1972 crankshaft sprocket, or by degreeing in your camshaft.
The non-retarded sprocket will have the alignment
dot and keyway slot directly in line with each other.
3
NOTE: Some cylinder heads have removable lower spring seats
with an inner spring step. This step must be removed to
allow the inner springs to set flush with the outer springs.