Re: IML: Dennis Hildebrandt .509 Cam
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Re: IML: Dennis Hildebrandt .509 Cam



Dennis - the Roadrunner cam was a 264 intake, 284 exhaust duration.  Mopar also makes a 284/284 with a .484 lift, which is 1 step down from the .509 cam.  The .484 cam is the largest they recommend for a automatic transmission.  I'd go with the next step down which is their 280/280 .474 lift, which is their old street hemi grind.  Good midrange torque and power.  Year One lists it at 169.00 for the cam and lifters, but you can find it cheaper.  By the way, the .509 cam will require new valve springs, and the other two will not.  Joe Reiss 


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