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Cobra Forums
SVT Shelby GT500
Built motor guys, please chime in
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<blockquote data-quote="rdanzy" data-source="post: 14322011" data-attributes="member: 112863"><p>The 2012 would have had an aluminum block from the factory. I am assuming that the FRPP short block is cast iron but I don't know if the cast iron is noisier than aluminum. You could also have piston slap as rotor_powerd noted above which should be OK if the block has forged pistons. Your installer may have indicated that there would be more noise due to piston clearance which will cause piston slap. Maybe get back with the installer and get the noise issue explained.</p></blockquote><p></p>
[QUOTE="rdanzy, post: 14322011, member: 112863"] The 2012 would have had an aluminum block from the factory. I am assuming that the FRPP short block is cast iron but I don't know if the cast iron is noisier than aluminum. You could also have piston slap as rotor_powerd noted above which should be OK if the block has forged pistons. Your installer may have indicated that there would be more noise due to piston clearance which will cause piston slap. Maybe get back with the installer and get the noise issue explained. [/QUOTE]
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SVT Shelby GT500
Built motor guys, please chime in
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