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Author
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Topic: 351c cranks
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b1k2h3
Journeyman Posts: 9
From: Bluefield
Registered: Jun 2004
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posted 10-11-2004 11:50 PM
   
As there are no factory forged cranks for the cleveland motor, what type of prep needs to be done for the cast one? I haven't seen much that is affordable in the aftermarket, as they begin approaching $2,000. How have racers worked around the weaknesses of the cast cranks in the past?
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bushman
Journeyman Posts: 45
From: newberg, OR, USA
Registered: Feb 2004
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posted 10-12-2004 06:01 AM
as far as I know, the cranks usually get turned 10/10, polished and nitrided. I have a buildup in a ford performance book here detailing a cleveland running 600 horsepower at 9000 rpm regularly. My guess is a straight nice crank must be plenty strong.
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kid vishus
Gearhead Posts: 6220
From: middle of NC
Registered: Oct 2000
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posted 10-12-2004 07:50 AM
Cast cleveland cranks are really strong. A lot of the old pro stockers used to run them without problems. A buddy of mine who used to run pro stock claimed he never broke one NA. I broke one last year, but it probably had way over a thousand passes on it (it was of relatively unknown history; it was in the motor that came with my car. I do know it was turned .020/.020 by Lunati in 1989 and raced ever since that time.) Plus, if it had been magnafluxed the last time it was out of the car, the impending doom probably would have been prevented. For most applications, I would turn the cast crank, chamfer the oil holes, and have it magnafluxed. If you plan on spraying nitrous, then stepping up to a stronger crank would be the 'smart' thing to do. 
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Daniel Jones
Gearhead Posts: 828
From: St. Louis, MO
Registered: Aug 99
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posted 10-12-2004 03:17 PM
There are forged steel cranks available for much less than $2000 for the 351C. They are "Cleveland style" cranks intended for use in Ford Motorpsort and Dart blocks with 2.75" mains but they will work in a 351C with the Ford Motorsport snout spacer. I just bought a 3.85" SCAT forged steel stroker crank for my 351C project. It was around $600 from Flatlander. Also Callies intends to get in the market when they get the chance. Still, I agree with Kid V. the stock crank is strong enough for most uses. Dan Jones
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