CAMSHAFTS

Ford-Mercury V-8 68-97370-429-460 (7.5L) cu.in.CAMSHAFTSApplicationMechanical Lifter CamshaftsGood low end and mid range torque and HP, fair idle,moderate performance usage, bracket racing: Super Pro,Hot Rod, auto trans w/2500+ converter; off road, 10.0 to11.5 compression ratio advised.Rough idle, performance usage, oval track: Late Model,Sportsman, 1/4-3/8 mile; bracket racing: Super Pro, HotRod, auto trans w/3000+ converter; serious off road,10.5 to 12.0 compression ratio advised.Rough idle, performance usage, good mid to upper RPMtorque and HP, bracket racing, auto trans w/3500+ converter,11.0 to 12.5 compression ratio advised.Fair idle, performance usage, good upper RPM torqueand HP, bracket racing, good w/plate nitrous system,auto trans w/3500+ converter, 11.5 to 12.5 compressionratio advised.Moderate competition only, good mid to upper RPM HP,bracket racing, auto trans w/3500+ converter, 11.5 to13.0 compression ratio advised.Moderate competition only, good mid to upper RPM HP,bracket racing, auto trans w/race converter, 12.5 minimumcompression ratio advised.Competition only, good upper RPM HP, bracket racing,good with large plate or manifold nitrous system, autotrans w/race converter, 13.0 minimum compression ratioadvised. Good w/large Roots supercharger, 22 lbs. maximumboost w/8.0 maximum compression ratio advised.Competition only, good upper RPM torque and HP, bracketracing in heavy car, good w/514+ cu.in., alunimumcylinder heads advised, auto trans w/race converter, 13.0minimum compression ratio advised.Radical competition only, good upper RPM HP, flat tappetrestricted classes, good w/540+ cu.in.w/ aluminum cylinderheads, auto trans w/race converter, 13.5 minimumcompression ratio advised.Camshaft Series/Grind NumberRPMPOWERRANGEF-238/3200-2-12 3000-6600F-246/3294-2-8 3600-7000F-256/3412-2-8 4000-7400F-256/3412-2-12 2200-6200F-266/3528-2-8 4400-7800F-272/3874-2S-8 4600-8000F-272/3874-2S-12 4800-8200F-274/3934-2S-10 4600-8200F-286/3765-2S-12 5000-8400CamshaftPART NUMBER/Emissions CodeSee pg. 293LIFTERSCOMPLETE CAM SPECIFICATIONSDegreesDuration@ .050”Int/Exh.AdvertisedDegreesDurationInt/Exh.DegreesLobeSeparationOpen/Close@ .050”Cam LiftInt/ExhLashHotInt.Exh.GrossLiftInt.Exh.351201 * 99257-16 b 238 300 112 12 46 .022 .547248 310 61 7 .022 .5703351211 * 99257-16 b 246 282 108 20 46 .026 .563351212 *a 256 292 61 15 .026 .5833351341 * 99257-16 b 256 292 108 25 51 .026 .583266 302 66 20 .026 .6033351351 * 99257-16 b 256 292 112 19 57 .026 .583266 302 68 18 .026 .6033351511 * 99257-16 b 266 302 108 30 56 .026 .603276 312 71 25 .026 .6243351601 * 99257-16 b 272 308 108 33 59 .026 .662280 316 73 27 .026 .6833351611 * 99257-16 b 272 308 112 28 64 .026 .662280 316 76 24 .026 .6833351621 * 99257-16 b 274 304 110 31 63 .012 .673278 308 73 25 .012 .6843351631 * 99257-16 b 286 322 112 34 72 .026 .644292 332 83 29 .030 .6533RPM range shown is for average usage. These cam profileswill RPM higher, depending upon application.IMPORTANT: Adjustable Vacuum Advance Kit available. See page333 for details.IMPORTANT: Crane offers Pushrod Guideplate and Rocker ArmStud Conversion Kits, (35655-16 and 52655-16) for streetapplications, enabling the 370-429-460 cu.in. engines withpedestal mounted rockers to have adjustable rocker armswithout cylinder head removal or machining. See page 325for details.256NOTE: When installing mechanical lifter series cams and kits, inother than 429 Super C.J. engines, a method of effectingvalve adjustment is required. On 68-71 engines equippedwith bottleneck type studs, using 99768-16 positive lockingnuts will permit valve adjustment. On 72-97 engines,the heads must be machined to use 99159-16 screw-instuds and pushrod guideplates.CRANECAMS.COMNOTE: Many 1972 and later Ford-Mercury V-8 engines areoriginally equipped with a retarded crankshaft sprocket.This may cause idling and performance problems wheninstalling aftermarket camshafts. We recommend usingour 35975-1 timing chain and gear assembly, a pre-1972crankshaft sprocket, or by degreeing in your camshaft. Thenon-retarded sprocket will have the alignment dot andkeyway slot directly in line with each other.NOTE: These camshafts also fit the 1969-70 Ford 429 Boss HemiV-8 engines. Some kit components will differ. ContactCrane’s Performance Consultants for details.

*This product is applicable only to pre-1966 California and pre-1968 federally certified passenger cars. Itis also applicable to non-emission controlled trucks and similar vehicles. It is not applicable or intendedfor use on any emission controlled vehicles operated on highways or roads.Custom Grind Cams Also Available – Call 866-388-5120 or go to cranecams.com for ordering informationCRANE VALVE TRAIN COMPONENTSSee pg. 358See pg. 337See pg. 350See pg. 362See pg. 360See pg. 306See pg. 328See pg. 312See pg. 315 See pg. 317VALVE SPRINGAND RETAINERKITSVALVESPRINGSRETAINERSVALVESTEMSEALSVALVESTEMLOCKSPUSHRODSTIMING CHAINAND GEARASSEMBLYSTEELROCKERARMS__ ALUMINUM ROCKERS __CRANE CLASSIC/ GOLDENERGIZER RACE99890-16 99970-16 c 99820-16 d 99094-1 e 35621-16 f 35975-1 *h 27774-16 i 27750-16 j95653-16 g 27771-16 k99890-16 99970-16 c 99820-16 d 99094-1 e 35621-16 f 35975-1 *h 27774-16 i 27750-16 j95653-16 g 27771-16 k99890-16 99970-16 c 99820-16 d 99094-1 e 35621-16 f 35975-1 *h 27774-16 i 27750-16 j95653-16 g 27771-16 k99890-16 99970-16 c 99820-16 d 99094-1 e 35621-16 f 35975-1 *h 27774-16 i 27750-16 j95653-16 g 27771-16 k99890-16 99970-16 c 99820-16 d 99094-1 e 35621-16 f 35975-1 *h 27774-16 i 27750-16 j95653-16 g 27771-16 k99890-16 99970-16 c 99820-16 d 99094-1 e 35621-16 f 35975-1 *h 27774-16 i 27750-16 j95653-16 g 27771-16 k99890-16 99970-16 c 99820-16 d 99094-1 e 35621-16 f 35975-1 *h 27774-16 i 27750-16 j95653-16 g 27771-16 k99890-16 99970-16 c 99820-16 d 99094-1 e 35621-16 f 35975-1 *h 27774-16 i 27750-16 j95653-16 g 27771-16 k99890-16 99970-16 c 99820-16 d 99094-1 e 35621-16 f 35975-1 *h 27774-16 i 27750-16 j95653-16 g 27771-16 kabcdefgCam, lifter, valve spring, and retainer kit, includes installation lubricants.Requires appropriate Crane pushrods.Requires Crane Multi Fit valve locks.Must machine cylinder heads.Machined steel, heat treated, Multi Fit.Heavy wall, heat treated, for use with pushrod guideplate cylinder heads.Pro Series one-piece, for use with pushrod guideplate cylinder heads.hijkPerformance steel billet gears and roller chain set.Crane Classic extruded, 1.72 ratio, requires 7/16” rocker arm studs and pushrod guideplates. Seenotes on opposite page. Valve Train Stabilizer available, see page 363.1.73 ratio, requires 7/16” rocker arm studs and pushrod guideplates. See notes on opposite page.Valve Train Stabilizer available, see page 363.1.73 ratio Wide Body, requires 7/16” rocker arm studs and pushrod guideplates. See notes on oppositepage. Valve Train Stabilizer available, see page 363.866-388-5120 • 386-236-9983 FAX 257