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04-03-2020, 11:37 PM
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#1 |
 Drives: malibu maxx ss chevy ss Join Date: Aug 2016
Location: VA
Posts: 64
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crank options
3.9 or 4.0 crank for a stock bore size stroker. Everything Ive read in the past recommends 3.9 for reliability and durability. what are you guys thoughts
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04-04-2020, 11:45 AM
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#2 |
  
Drives: 2014 Camaro SS/RS 1LE 1967 Camaro Join Date: Oct 2013
Location: Fort Wayne, IN
Posts: 874
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I read an article from a major crank company, sorry don’t remember which one, they produce both crank specs. They stated the 3.9 was the best option because it keeps the piston up in the bore better so there is not as much rock at the bottom of the stroke. Maybe some skilled builders will chime in.
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04-05-2020, 11:40 AM
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#3 |
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Drives: malibu maxx ss chevy ss Join Date: Aug 2016
Location: VA
Posts: 64
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I am finding some info on new piston designs that takes care of that piston rock
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04-05-2020, 02:27 PM
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#4 |
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Drives: 2014 Camaro SS/RS 1LE 1967 Camaro Join Date: Oct 2013
Location: Fort Wayne, IN
Posts: 874
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Good to know. With all these 416’s see being built especially with forced induction I could only assume some of that had been addressed. I’ll have to do some research now.
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