Ford-Mercury V-8 68-97
370-429-460 (7.5L) cu.in.
COMPLETE CAM SPECIFICATIONS Application
RPM Camshaft POWER PART NUMBER/ RANGE Emissions Code
Camshaft Series/ Grind Number
Mechanical Roller Camshafts Excellent low and mid range torque, fair idle, moderate performance usage, good low and mid-range HP, mild bracket racing, auto trans w/2500+ converter, 10.5 to 11.5 compression ratio advised.
SR-232/338-2S-12
25006500
CAMSHAFTS
R-252/420-2-10
30006800 34007200
232 240
282 290
112
9 46 57 3
.020 .578 .020 .599
358511*a
30518-16 35570-16b
248 256
298 306
112
17 51 65 11
.020 .619 .020 .640
358801*a
30518-16 35570-16b
252 262
284 294
110
20 52 65 17
.020 .718 .020 .718
30518-16 35570-16b
252 260
290 298
110
21 51 65 15
.020 .684 .022 .684
30518-16 35570-16b
258 268
290 300
108
25 53 66 22
.020 .718 .020 .718
30518-16 35570-16b
266 278
300 310
112
25 61 75 23
.020 .742 .020 .718
30518-16 35570-16b
268 278
300 310
110
28 60 73 25
.020 .718 .020 .718
3 32007000
Good mid range torque and HP, rough idle, radical street, R-258/420-2S-8 performance usage, serious off road, bracket racing w/ heavy car, auto trans w/3500+ converter, 11.5 to 12.5 minimum compression ratio advised.
36007400
R-266/434-2S-12
RPM range shown is for average usage. These cam profiles will RPM higher, depending upon application. IMPORTANT: Adjustable Vacuum Advance Kit available. See page 313 for details. IMPORTANT: Crane offers Pushrod Guideplate and Rocker Arm Stud Conversion Kits, (35655-16 and 52655-16) for street applications, enabling the 370-429-460 cu.in. engines with pedestal mounted rockers to have adjustable rocker arms without cylinder head removal or machining. See page 305 for details. NOTE: Roller camshafts with SFO1 firing order (1-5-4-8-6-3-7-2)
358521*a 3 358201*a 3
38007800
358211*a 3
Performance usage, good mid-range HP, bracket racing, R-268/420-2-10 auto trans w/race converter, 12.5 minimum compression ratio advised.
240
30518-16 35570-16b
3
Good mid range torque to upper RPM torque & HP, rough SR-252/400-2S-10 idle, performance usage, 514+ cu.in., Pro Street, bracket racing, auto trans w/3500+ converter, 4200-4600 cruise RPM, 11.0 minimum compression ratio advised.
Performance usage, good mid-range HP, bracket racing, good w/514+ cu.in., auto trans w/race converter, 12.5 minimum compression ratio advised. Good with manifold nitrous system.
LIFTERS
Degrees Advertised Open/Close Lash Gross Duration Degrees Degrees @ .050” Hot Lift @ .050” Duration Lobe Cam Lift Int. Int. Int/Exh. Int/Exh. Separation Int/Exh Exh. Exh.
3
Good low and mid range torque and HP, fair idle, moder- SR-248/362-2S1-12 ate performance usage, bracket racing, auto trans w/3500+ converter, 3800-4200 cruise RPM, 10.5 to 12.0 compression ratio advised. Good low and mid range torque and HP, rough idle, performance usage, bracket racing, auto trans w/3000+ converter, 11.0 to 12.5 compression ratio advised.
358501*a
See pg. 276
40007800
358821*a 3
are available on special order. Contact Crane’s Performance cause idling and performance problems when installing Consultants for details. aftermarket camshafts. We recommend using our 35975-1 NOTE: When installing roller lifter series cams and kits, in other timing chain and gear assembly, a pre-1972 crankshaft sprocket, or by degreeing in your camshaft. The nonthan 429 Super C.J. engines, a method of effecting valve retarded sprocket will have the alignment dot and keyway adjustment is required. On 68-71 engines equipped with slot directly in line with each other. bottleneck type studs, using 99768-16 positive locking nuts will permit valve adjustment. On 72-97 engines, the heads NOTE: These camshafts also fit the 1969-70 Ford 429 Boss Hemi must be machined to use 99159-16 screw-in studs and V-8 engines. Some kit components will differ. Contact pushrod guideplates. Crane’s Performance Consultants for details. NOTE: Many 1972-97 Ford-Mercury V-8 engines are originally equipped with a retarded crankshaft sprocket. This may
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