balance - Team Camaro Tech
Troubleshooting Diagnosing problems done here.

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post #1 of 4 (permalink) Old Aug 27th, 99, 05:57 PM Thread Starter
Join Date: Aug 1999
Location: st.john, wa 99171
Posts: 2
put a 400 small block in a 78 camaro with a 350 flywheel on it. and it vibrates from 1500 rpm on up, I think i need a 400 flywheel but not sure.
gaylon hergert is offline  
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post #2 of 4 (permalink) Old Aug 28th, 99, 05:33 AM
Join Date: Jun 1999
Posts: 306
Yes you do need a 400 flywheel. The smaller chevy engines are neutral balance, meaning that the counter weights on the crank shaft are large enough to balance the rod and piston assemblies. Therefore the flywheels don't need extra weight in them to balance the engine. The stock 400 crank does not have enough material in the counter balance so the flywheel must have extra weight to balance the engine.

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post #3 of 4 (permalink) Old Sep 5th, 99, 05:40 PM Thread Starter
Join Date: Aug 1999
Location: st.john, wa 99171
Posts: 2
Thanks Joseph for the answer to my problem it took care of it.
gaylon hergert is offline  
post #4 of 4 (permalink) Old Sep 9th, 99, 06:43 AM
Senior Tech
Join Date: Sep 1998
Location: Valencia, CA USA
Posts: 107
Don't forget about the harmonic balancer as well...
Kevin is offline  
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