2011 - Crane Cams

CAMSHAFTS
Ford-Mercury V-8 63-76
246
Application
Camshaft Series/
Grind Number
Hydraulic Roller Camshafts — Retrofit
Good low end torque, smooth idle, daily usage, towing,
economy, also mild turbocharged, 2200-3000 cruise
RPM, 8.0 to 9.5 compression ratio advised.
Excellent low and mid-range torque and HP, good idle,
moderate performance usage, mild bracket racing, 2800-
3400 cruise RPM, 9.5 to 10.75 compression ratio advised.
Excellent low and mid-range torque and HP, fair idle,
moderate performance usage, mild bracket racing, 3000-
3600 cruise RPM, good with aftermarket aluminum cylinder
heads, 10.0 to 11.5 compression ratio advised.
Excellent mid-range & upper RPM HP, lightweight kit car,
rough idle, performance usage, good mid-range HP, mild
bracket racing, auto trans w/2500+ converter, works
well with aftermarket aluminum cylinder heads, 3600-
4200 cruise RPM, 10.5 to 12.0 compression ratio advised.
Good mid-range and upper RPM HP, lightweight kit car,
rough idle, performance usage, mild bracket racing, auto
trans w/3000+ converter, good with 450+ cu.in., good
with aftermarket aluminum cylinder heads, 3800-4400
cruise RPM, 11.0 to 13.0 compression ratio advised.
Mechanical Lifter Camshafts
Good mid range torque, fair idle, moderate performance
usage, good low and mid-range HP, off road, bracket racing,
3400-3800 cruise RPM, mild supercharged, 10.0 to
11.5 compression ratio advised.
RPM
POWER
RANGE
HR-214/319-2S-12 1400-
5400
HR-222/320-2S1-12 1800-
5600
HR-226/3201-2S-12 2000-
5800
HR-234/354-2S-12 2400-
6200
HR-242/350-2S-12 2800-
6400
F-238/3200-2-14 2400-
6000
Camshaft
PART NUMBER/
Emissions Code
CRANECAMS.COM
352-360-390-406-410-427-428 cu.in.
See pg. 294
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.
349511 *a 35532-16 b 214 276 112 0 34 .000 .561
222 284 48 (6) .000 .584
3
349551 *a 35532-16b 222 286 112 3 39 .000 .563
226 290 49 (3) .000 .563
3
349561 *a 35532-16b 226 290 112 5 41 .000 .563
236 302 54 2 .000 .581
3
349571 *a 35532-16b 234 298 112 9 45 .000 .623
242 306 57 5 .000 .651
3
349581 *a 35532-16 b 242 308 112 13 49 .000 .616
248 312 60 8 .000 .616
3
341191 * 99257-16 238 300 114 10 48 .026 .563
99256-16 c 248 310 63 5 .026 .584
Replacement for factory 425 HP, 427 cu.in. camshaft. BluePrinted 3000-
3
340321
6600
* 99257-16 244 284 114 13 51 .018 .524
C3AZ-6250-AA 99256-16c 244 284 61 3 .022 .524
Good mid range torque and HP, rough idle, moderate
performance usage, good mid-range HP, 3600-4200
cruise RPM, 10.5 to 12.0 compression ratio advised.
Moderate competition only, good mid and upper RPM
torque and HP, bracket racing, auto w/race converter, 11.5
to 12.5 compression ratio advised.
Moderate competition only, good mid and upper RPM HP,
bracket racing, auto w/race converter, good with aftermarket
aluminum cylinder heads, 12.0 minimum 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.
F-248/3334-12 3400-
7000
F-254/382-2S-10 3800-
7200
F-266/3528-8 4200-
7600
1
340471 * 99257-16 248 310 112 17 51 .026 .587
99256-16 c 248 312 61 7 .026 .587
3
341341 * 99257-16 254 286 110 22 52 .018 .672
99256-16c 262 298 65 17 .018 .678
3
341461 * 99257-16 266 302 108 30 56 .026 .621
99256-16 c 266 302 66 20 .026 .621
3
NOTE: To provide the most accurate valve adjustment on hydraulic
roller camshafts, the use of Crane adjustable rocker
arms (34772-16 or 34791-1) and appropriate pushrods
(special order or 95805-16) is highly recommended.
NOTE: To effect valve adjustment with mechanical lifter camshafts,
the use of Crane adjustable rocker arms (34772-16 or
34791-1) and the appropriate pushrods is required.
NOTE: In order to use these mechanical lifter camshafts in mechanical
lifter only side oiler type blocks, you must groove the
center of #2 and #4 cam bearing journals with a .022” radius
(.044” width) and .035” deep.
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.
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.