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Kirkham Motorsports

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Old 10-19-2011, 07:33 PM
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There is someone selling forged FE stroker cranks on ebay and I think they are connected with Precision Oil Pumps in Clovis Ca.
Does anyone know about these cranks?
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Old 10-19-2011, 07:47 PM
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Quote:
Originally Posted by Michael4yah View Post
There is someone selling forged FE stroker cranks on ebay and I think they are connected with Precision Oil Pumps in Clovis Ca.
Does anyone know about these cranks?
You don't need a forged crank, but just a good cast one for most applications. I've used the Scat 9000 series crankshafts in many applications, and they perform just fine in 700hp BBF/FE engines.

The forged crankshafts that Michael is talking about are RPM brand crankshafts. They need a little machine work out of the box to be dead on.
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Old 10-19-2011, 07:58 PM
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Would this ever happen with a billet crank, for the amount one costs is it bulletproff.
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Old 10-20-2011, 02:44 AM
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It can happen to anything. The Mountain Motors can crack a brand new Sonny Bryant billet crank, so they are not above the law.

Forged is more than adequate for most applications.
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Old 10-20-2011, 03:05 AM
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The timing chain appears to be broken.

Sorry to say, I see a lot of damage.

Block, crank, rods and cam (from hitting each other), and some valves from kissing pistons.

I'd say while stripping the engine, you'll be making a list of what you can salvage, going by your first pic will only be the top end.

Can you post any more pics?
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Old 10-20-2011, 04:19 AM
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Default Would like to see pictures BEFORE we go crazy

Eljaro Sorry for the motor failure but would really like to see pictures first. Cast Cranks are just that. They are in millioms of motors and run to 6,000 rpms without failures. I raced a 428 cast crank for 7 years and no failures. I ran eagle rods when they first came out in my motor, again no problems. 6,000 rpm limit, IMO is key. I perfect balance of parts also. Waiting to see other pictures. Rick L. Ps looks nice the snout snapped in the front. This is a FE problem with only about an inch diameter and 3 inches long having a balancer weight out to the end. Who's make of balancer is that and was the WHOLE rotating mass done as one piece??
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Old 10-20-2011, 06:34 AM
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It could be a problem with machining the journals or the crank improperly or not balancing the rotating assembly correctly ?
Mistakes happen.
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