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2013-14 Shelby GT500
Whipple's NEW 4.5L 275AX 07-2014 GT500 Supercharger
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<blockquote data-quote="SlowSVT" data-source="post: 13663349" data-attributes="member: 20202"><p>Are they still undercutting the fillets on the 5.8 crank? That's where tomshaze's crank snout sheered which is predictable. The 4.6 Kellogg crank is undercut just about everywhere but the snout is the only real vulnerable part. Full radii fillets remove the stress risers reducing it willingness to break. For me this is the main justification going to a billet crank but breaking one on a 4.6 is a rare occurrence so I would put the $3500 to better use. I think I would do the same thing with the 5.8 and just plunk the dough down for a new forging.</p><p></p><p>I have an 8 rib BHJ harmonic balancer which is what the 5.4 and most likely the same balancer as the 5.8 for my Boss 5.0. </p><p></p><p><a href="http://www.bhjdynamics.com/" target="_blank">BHJ Dynamics, Harmonic Dampers and Specialty Crankshaft Vibration Dampers</a></p><p></p><p>Very nice piece and they and build it anyway you want.</p></blockquote><p></p>
[QUOTE="SlowSVT, post: 13663349, member: 20202"] Are they still undercutting the fillets on the 5.8 crank? That's where tomshaze's crank snout sheered which is predictable. The 4.6 Kellogg crank is undercut just about everywhere but the snout is the only real vulnerable part. Full radii fillets remove the stress risers reducing it willingness to break. For me this is the main justification going to a billet crank but breaking one on a 4.6 is a rare occurrence so I would put the $3500 to better use. I think I would do the same thing with the 5.8 and just plunk the dough down for a new forging. I have an 8 rib BHJ harmonic balancer which is what the 5.4 and most likely the same balancer as the 5.8 for my Boss 5.0. [url=http://www.bhjdynamics.com/]BHJ Dynamics, Harmonic Dampers and Specialty Crankshaft Vibration Dampers[/url] Very nice piece and they and build it anyway you want. [/QUOTE]
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2013-14 Shelby GT500
Whipple's NEW 4.5L 275AX 07-2014 GT500 Supercharger
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