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#11 |
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I ran cast cranks in a couple of my super stock small block chevy engines. Never had a problem with them. I have broke 2 aftermarket steel cranks. Both of those broke because other parts broke first.
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Mike Pearson 2485 SS |
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#12 |
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I have seen them both break, mostly due to detonation.
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#13 |
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i ran a 390 cast crank for years .. quickest we ever ran with it was 9.70s?
definetly not using cast cranks these days? it was a ticking time bomb waiting to happen ?
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Stephen Johnson #2162 Horace Johnson #2167 SS/D 427 Ford Fairlane NHRA-IHRA |
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#14 |
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Location: Bucks Co Pa
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A 50oz external cast crank or something that?s been converted to internal balance?
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#15 |
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#16 |
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I know several people who have used cast cranks in their 318/340
Superstock engines that run 8000+ I gave them quite a few for free as I do not run them in ours cars. Most of them have got away from using them anymore.
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John Irving 741 Stock 741 Super Stock |
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#17 |
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It's a 290 AMC, so no aftermarket parts, and pretty much nothing to directly compare. But with a light piston and fairly short stroke I've decided not to worry about it, and mag the crank after a number of passes. These are easy to internally balance.
I think the effectiveness of the damper is one of the biggest factors in crank life, but that's another thing where there is no comparable data. |
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#18 |
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the last one i used had 75 runs on it? it was maged good at that time , decided to go 427 shafts ?
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Stephen Johnson #2162 Horace Johnson #2167 SS/D 427 Ford Fairlane NHRA-IHRA |
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