anybody run this Speedmaster crank?

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anybody run this Speedmaster crank?

Post  BB2005 on December 30th 2013, 1:33 pm

I was wondering if anyone had insight to the quality on the Speedmaster cast 3.85" crank? Here is an Ebay ad:

http://www.ebay.com/itm/301048096623?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649

Looking at a mild build at 600hp and not happy with the Internal balance cranks I'm finding at .020" or .030"

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Re: anybody run this Speedmaster crank?

Post  69F100 on December 30th 2013, 1:44 pm

I got a good stock crank out of a 86 motor home it is standard on mains and rods with new king bearings for it I was going to use it but didn't need it I will take $150 plus shipping for crank and bearings. PM me if you are interested I can take pics and text them to you.

Jim
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Re: anybody run this Speedmaster crank?

Post  Paul Kane on December 30th 2013, 2:25 pm

BB2005 wrote:I was wondering if anyone had insight to the quality on the Speedmaster cast 3.85" crank?
Looking at a mild build at 600hp and not happy with the Internal balance cranks I'm finding at .020" or .030"
There is nothing wrong with an OEM 460 crankshaft that is 0.020"-0.030" undersize, as the journals will be machined and polished to as new, and there can be plenty of good bearing options at those undersizes for a 600 hp engine (or double that power level which such OEM 460 crankshafts have been known to handle). And I'd take a used OEM nodular iron crankshaft over that offshore scrap metal crankshaft any day of the week...or month...or year...or lifetime.
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Re: anybody run this Speedmaster crank?

Post  bbf-falcon on December 30th 2013, 3:45 pm

X2

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