engine balencing % question

tybob

Member
Joined
May 11, 2004
hi , i just try to know howmutch % to balence crank ,rods ,piston, somebody say 0 % other 33.6% and other 50% external ! internal !:rolleyes: ........i have stock rods,crank and je piston, block gardel,roller cam,champion p&p heads,td roller shaft ,stock balencer and flywheel......want run hi 10".......
 
the 33 % will be a little smoother at lower rpms, put not quite as smooth up top, for what you're shooting for the 50% will probably be best, we've put that much in other buicks, and they seem to be just fine, oh and just keep it external since you using the stock parts, just my $.02
 
I believe mine is 50%

I verified this with my builder when this question came up in a thread last year and I think he said 50 or maybe even 55%. I dont have any vibration issues at all and the car is smooth all the way up over a 122 miles per hour. I would do a search and see what everyones opinions are.
 
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