Thread: ford 289 cam size

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oh i just wanted to know because i have a cam with a .488 lift that i want to ut in it is it safe

yes thats a safe lift cam for a 289, as long as you match your valve springs a stock head should be able to flow that decently.... i would reccomend upgrading to roller rockers though, i've had issues with stock rockers on a cam lifting that tall pulling out the rocker studs

Originally Posted by thesals

yes thats a safe lift cam for a 289, as long as you match your valve springs a stock head should be able to flow that decently.... i would reccomend upgrading to roller rockers though, i've had issues with stock rockers on a cam lifting that tall pulling out the rocker studs

What kind of perfomance could he expect with a .488 cam... I'm assuming he is around 216 duration?

Originally Posted by JoeSacamano

What kind of perfomance could he expect with a .488 cam... I'm assuming he is around 216 duration?

My best guess is that the car will be slower than it was with the stock cam.

Originally Posted by thesals

yes thats a safe lift cam for a 289, as long as you match your valve springs a stock head should be able to flow that decently.... i would reccomend upgrading to roller rockers though, i've had issues with stock rockers on a cam lifting that tall pulling out the rocker studs

thanks for help on cam size im building a 65 ford 289 I wont a hard thump sound mabe 500 to 520 cam what size holley carb im going to change springs vavles to 202 & 190 will they work im going to have heads rebuilt & intake ported also going to put 150 or 200 hit of nos. on it what kind of compression do I need

Originally Posted by topthat

im building a 65 ford 289 I wont a hard thump sound

Awwwwww, Jeez, no you don't. Somebody else needs to explain it this time, I'm tired.

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Originally Posted by techinspector1

Awwwwww, Jeez, no you don't. Somebody else needs to explain it this time, I'm tired.

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I agree.



Once upon a time, we were young and worshipful of things we did not entirely have a grasp on. Now, some days, I am lucky to be able to get a grasp on anything until I get my hands warmed up with my coffee cup..

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thanks what size cam do u think thanks for all help

Originally Posted by topthat

thanks what size cam do u think thanks for all help

In order to intelligently choose a cam for a motor, you must know the exact static compression ratio of the motor. Please read through this tutorial, which explains why....
http://www.crankshaftcoalition.com/w..._compatibility
This information was taken from the Crane Cams engineers and simply condensed into the table that you see on the tutorial. Here is the same info in the application section of the Crane Catalog for 260/289/302 Ford motors. You can see that the recommended compression ratio increases as the cam timing gets snottier.
http://www.cranecams.com/196-199.pdf

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