Those of you with Forged Pistons Get in here
04-16-2005, 09:55 PM
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Those of you with Forged Pistons Get in here So how loud is your piston slap... After thinking my damn motor has all these probs with this knock I cant find.. I have come to the conclusion that it is probably piston slap so how Fing loud is it because mine sounds like a valve hitting a piston but it isnt the problem
04-17-2005, 06:59 AM
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Originally Posted by 97M6Formula
So how loud is your piston slap... After thinking my damn motor has all these probs with this knock I cant find.. I have come to the conclusion that it is probably piston slap so how Fing loud is it because mine sounds like a valve hitting a piston but it isnt the problem
Sounds like a bearing. Did you just rebuild the motor?
04-17-2005, 05:30 PM
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Originally Posted by Fastbird93
I've got Diamond Ultra-Lite forged pistons, motor was built by AP Engineering. I get some pretty loud piston slap on a cold start up, but it quiets down after warming up.
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04-17-2005, 09:51 PM
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Originally Posted by 94FormulaFbird
Aluminum pistons expand when they warm up, Sometimes you will hear them "knocking" until they are fully expanded to the cylinder... Happens alot on the LS1 cars
