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The Terminator
Engine/Tuning
3.4 Boost Question
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<blockquote data-quote="Swervedriver" data-source="post: 13973187" data-attributes="member: 12324"><p>You might not be able to tell by my SVTperf post count, but I've been around long enough to have seen threads reporting broken cranks and for every broken crank there is some larger number of happy lower pulley users. I even remember a guy with a 3.4 that was cracking blocks due to the blower drive torque cranking down on the stock support center thread, essentially pulling the crank forward. So it could be said that an aftermarket lower would prevent that failure...</p><p></p><p>The one thing I noticed they all had in common was the stock balancer. Yes I am taking a bit of a leap of faith hoping my IW balancer and Metco ring doesn't break my crank. If it does I won't be going back to a stock lower. I'll be going with a custom billet multi key crank.</p></blockquote><p></p>
[QUOTE="Swervedriver, post: 13973187, member: 12324"] You might not be able to tell by my SVTperf post count, but I've been around long enough to have seen threads reporting broken cranks and for every broken crank there is some larger number of happy lower pulley users. I even remember a guy with a 3.4 that was cracking blocks due to the blower drive torque cranking down on the stock support center thread, essentially pulling the crank forward. So it could be said that an aftermarket lower would prevent that failure... The one thing I noticed they all had in common was the stock balancer. Yes I am taking a bit of a leap of faith hoping my IW balancer and Metco ring doesn't break my crank. If it does I won't be going back to a stock lower. I'll be going with a custom billet multi key crank. [/QUOTE]
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