[DeTomaso] POLL: Are you running a Roller Cam in your 351C?

Kirk Evans kre at adelphia.net
Wed Jan 6 19:48:38 EST 2010


Yes---Comp hydraulic---iron closed heads--393 CI made 565 HP at 6800.


----- Original Message ----- 
From: "Asa Jay Laughton" <asajay at asajay.com>
To: <detomaso at realbig.com>
Sent: Wednesday, January 06, 2010 4:30 PM
Subject: [DeTomaso] POLL: Are you running a Roller Cam in your 351C?


> Just interested in how many of just the folks on this forum (never
> mind all Pantera owners in general) who are running a roller cam in
> their 351C powered Pantera.
>
> Please raise your hand.
>
> Curious,
> Asa Jay
>
> Quoting jderyke at aol.com:
>
>> In a message dated 1/5/10 3:39:46 PM, hemipanter at hemipanter.se writes:
>>
>>> Hav not been very much talk about "cam walk" on this board....
>>>
>> Thats likely because it doesn't affect pushrod Fords with their stock 
>> front
>> cam retainer plate, not used by GM until the LS-series engines copied 
>> that
>> from Ford as well.  And the modular Fords don't have any such problems. 
>> On
>> rare occasions a pushrod Ford retainer plate will wear and allow some cam
>> movement, as happened a year or so ago to Jorn Olsen in Norway with his 
>> hot
>> Fontana, but its not generally the problem it is with other brands
>> of engines.
>> New hardened plates in several designs- including roller thrust bearing
>> types- are still available from Ford.
>>
>> Plus, cam walk is more of a problem when running roller cams rather than 
>> on
>> flat-tappet, and roller cams don't seem to be that popular in 351-C 
>> street
>> cars nowadays. I only know of a few out of hundreds of U.S Panteras.
>> Possibly because -A- roller cams are steel and -B- 351-Cs have
>> enough trouble with
>> stock distributor drive gears on iron cams. Steel cams require steel 
>> gears;
>> the prime source of good steel drive gears was Crane, and supplies of 
>> gears
>> from the new owners of Crane Cams are reportedly irregular. I haven't 
>> heard
>> much about droves of Cleveland owners looking for roller cams these days.
>> Doesn't your Hemi use a front cam retainer to hold things in position? 
>> It's
>> been too long since I did anything with 426 Hemis.... J Deryke
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