2011 - Crane Cams

CAMSHAFTS
Ford-Mercury V-8 69-93
228
Application
Mechanical Roller Camshafts
Rough idle, performance usage, good w/manifold
nitrous system, good upper RPM HP, bracket racing, auto
trans w/4000+ converter, 4400-4800 cruise RPM, 11.5
minimum compression ratio advised. Good w/Roots
supercharger, 22 lbs. maximum boost w/8.0 maximum
compression ratio advised.
Competition only, good w/large nitrous system, good
mid to upper RPM HP, bracket racing, auto trans w/race
converter, 12.0 minimum compression ratio advised.
Good w/Roots supercharger, 24 lbs. maximum boost
w/8.0 maximum compression ratio advised.
Competition only, good mid to upper RPM HP, bracket
racing, auto trans w/race converter, 12.0 minimum compression
ratio advised, aftermarket aluminum cylinder
heads advised, good w/large nitrous system. Good w/
Roots supercharger, 24 lbs. maximum boost w/8.0 maximum
compression ratio advised.
Performance usage, bracket racing, good upper RPM
torque and HP, Super Pro, etc., auto trans w/race converter,
oval track, high RPM 3/8-1/2 mile, 12.0 minimum
compression ratio advised.
Competition only, bracket racing, good upper RPM
torque and HP, Super Pro, etc., auto trans w/race converter,
aftermarket aluminum cylinder heads advised, 12.0
minimum compression ratio advised.
Competition only, bracket racing, good upper RPM
torque and HP, Super Pro, Super Gas, etc., auto trans w/
race converter, aftermarket aluminum cylinder heads
advised, 12.5 minimum compression ratio advised.
Competition only, bracket racing, good upper RPM
torque and HP, Super Pro, Super Gas, etc., auto trans w/
race converter, aftermarket aluminum cylinder heads
advised, 12.5 minimum compression ratio advised.
Competition only, good upper RPM HP, stick or auto trans
w/race converter, designed for large manifold nitrous
system, professionally prepared cylinder heads, 13.5
minimum compression ratio advised.
Competition only, good upper RPM HP, stick or auto trans
w/race converter, professionally prepared cylinder heads,
13.5 minimum compression ratio advised.
Camshaft Series/
Grind Number
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: Camshafts for engines with 52mm, 52.8mm (2.081”), and
55mm diameter camshaft bearing journals are available on
special order.
NOTE: Many 1985-87 302 engines, all 88-97 302 passenger car
engines, all 96-00 302 truck engines, all 85-95 302 H.O.
engines, and all 94-97 351 Windsor engines are equipped
with hydraulic roller camshafts and lifters. Conventional
hydraulic, mechanical, or roller lifters can be easily installed
in these engines, providing the appropriate kit components
are used.
RPM
POWER
RANGE
SR-262/374-2S-10 4400-
7800
R-266/420-2S3-10 4600-
8000
R-266/452-2S-10 4600-
8200
R-268/420-2S1-8 4800-
8200
R-272/4381-2S1-8 5000-
8400
R-276/4334-2S-8 5200-
8400
R-280/452-2S-10 5400-
8600
R-284/466-2S-15 5400-
8800
R-286/456-2S1-10 5200-
8800
Camshaft
PART NUMBER/
Emissions Code
CRANECAMS.COM
351 (5.8L) Windsor and 82-84 302 (5.0) H.O.,
also: 302 SVO and 351 SVO
See pg. 296
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.
448671 *a 44518-16 262 312 110 26 56 .020 .598
44570-16 b 274 323 72 22 .024 .584
3
448871 *a 44518-16 266 298 110 27 59 .020 .672
44570-16 b 276 308 72 24 .020 .672
3
448311 *a 44570-16 b 266 295 110 28 58 .020 .746
276 306 73 23 .022 .739
3
448851 *a 44518-16 268 300 108 30 58 .020 .672
44570-16 b 272 304 68 24 .020 .672
3
448891 *a 44518-16 272 304 108 31 61 .020 .701
44570-16 b 278 310 70 28 .022 .701
3
448291 *a 44518-16 276 316 108 33 63 .026 .693
44570-16b 284 284 73 31 .026 .683
3
448881 *a 44570-16b 280 310 110 35 65 .020 .723
288 320 78 30 .020 .672
3
448321 *a 44570-16 b 284 316 115 30 74 .020 .746
296 336 87 29 .030 .753
3
448331 *a 44570-16 b 286 326 110 36 70 .026 .730
290 330 78 32 .026 .734
NOTE: Ford 221 thru 302 camshafts can be used in 351 Windsor
engines if the engine is changed to 221 thru 302 firing order
(1-5-4-2-6-3-7-8). Ford 351W firing order is 1-3-7-2-6-5-4-
8.
NOTE: In order to effect valve adjustment when using roller lifter
camshafts, the heads must be machined to accept screw-in
studs (on engines not originally equipped).
NOTE: Some engines have long valve stems which will result in excessive
valve spring assembly height. Different springs and
retainers may be required to prevent excessive shimming.
Contact Crane’s Performance consultants for details.
3
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 our
44975-1 or 44984-1 timing chain and assemblies, a pre-
1972 crankshaft sprocket, or degreeing in your camshaft.
The non-retarded sprocket will have the alignment dot and
keyway slot directly in line with each other.