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Old 10-05-2012, 09:21 PM
twwtruck twwtruck is offline
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after market cam

Whats a good cam that's agressive that I wont have to change my stock rockers on a 78 460
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Old 10-06-2012, 01:33 PM
big vann big vann is offline
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That's a loaded question.MUCH more info is needed.Regarding cam lift to retain pedestal style rocker arms,you will be safe with a 0.535" lift.For cam specs such as duration,lobe separation and intake centerline,you need to know:vehicle weight,intended use,gearing,tire size,auto or manual trans,compression ratio,etc...Camshaft manufacturers are your best resource for cam choice.Also look to custom cam grinders.460ford.com is a good source for vendors.
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Old 10-06-2012, 07:44 PM
twwtruck twwtruck is offline
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It's a 78 f250 built for tug a truck but will get driven on the road once in awhile and the motor is stock except for carb and intake
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Old 10-06-2012, 07:46 PM
twwtruck twwtruck is offline
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It is auto and will weight 6500 pounds. Need more low end but want an agressive idle
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Old 10-07-2012, 01:36 PM
big vann big vann is offline
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You're best to stay with a short duration cam to help build cylinder pressure.Likely has 8.5-1 compression ratio or less.Free flowing exhaust with headers(longtubes) will help alot.I like the Comp Cams 4x4 grinds.Short duration,dual pattern cams for lots of low RPM torque.Look at 34-2321-4.It has 210/218 deg. duration @.050 lift which is great for low end power.It's hard to be humble with cam selection.With all stock engine,gearing,conveter,CR,and valvetrain,you're best to stay conservative with duration and lift.
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Old 10-07-2012, 01:56 PM
twwtruck twwtruck is offline
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Ok thanks for the help I will look further into it and do some more reading up
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Old 10-07-2012, 01:56 PM
 
 
 
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