How big of a difference are we talking here as far as reliability, smooth engine performance, and HP gains (if any)?

i'm currently doing my first engine build...new bearings, JE pistons, Eagle rods, etc...while everything's apart, i have the opportunity to blueprint and balance the engine..but do i really need to? from what i hear, the cranks are already balanced from the factory, and the aftermarket pistons and rods are balanced too, right?

i don't wanna hear throries, i want actual experience...what kind of difference are we looking at here? is it worth the money?

 

I would do it just to be safe. At 9,000 rpms **** can get crazy. The rotating mass at that speed is unbelievable....any unbalance can/will lead to premature wear and possibly failure of bearings and the like.

-Ryan

 

I was wondering this also. And can someone explain the process of actually balancing and blueprinting the engine.

 

with my experience, you are going to blow up the motor accidently by overboosting, or something like that, before anything related to balancing hurts the motor. Personally i wouldnt waste my money balancing it.

Ask yourself this, how long do you expect this motor to last? if you want it to last forever, and youre not gonna get crazy with it, then go ahead and balance it.