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2013-14 Shelby GT500
Built engine time.
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<blockquote data-quote="Catmonkey" data-source="post: 16886292" data-attributes="member: 124025"><p>I'm still running the stock primary chains and sprockets too, but they have been REM polished, cryogenically treated and Micro Blued (friction reduction). This make these powered metal primary cam sprockets stronger than stock. L&M and others still have Cloyes billet secondary sprockets and are the same on all the DOHC (except Coyote). I'd highly recommend spending the money to get those. Retrofitting 10mm valve covers and making the stock EGR system function is not an easy undertaking, but it can be done. It's not so much a horsepower threshold but how aggressive the ramps are on your camshaft and how much spring pressure you're running. Stock cams are very mild. NSR cams usually have slower ramps than those requiring upgraded valve springs. Billet tensioners for the secondary chains are a worthy upgrade as well.</p></blockquote><p></p>
[QUOTE="Catmonkey, post: 16886292, member: 124025"] I'm still running the stock primary chains and sprockets too, but they have been REM polished, cryogenically treated and Micro Blued (friction reduction). This make these powered metal primary cam sprockets stronger than stock. L&M and others still have Cloyes billet secondary sprockets and are the same on all the DOHC (except Coyote). I'd highly recommend spending the money to get those. Retrofitting 10mm valve covers and making the stock EGR system function is not an easy undertaking, but it can be done. It's not so much a horsepower threshold but how aggressive the ramps are on your camshaft and how much spring pressure you're running. Stock cams are very mild. NSR cams usually have slower ramps than those requiring upgraded valve springs. Billet tensioners for the secondary chains are a worthy upgrade as well. [/QUOTE]
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2013-14 Shelby GT500
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