Engine balance?

[HIPSI]

My machine shop just called and said that they couldn't balance my rotating assembly because the replacement pistons (forged TRW/Speed-Pro) are heavier than the factory pieces. I thought that all of the forged pistons were lighter than the factory slugs. Any one else run into this situation?

Thanks.

 

[J-B Racing]

Change Machine Shop....

 

[TurboDave]

Change Machine Shop....

Ditto

 

[BlackBandit]

Wow!

 

[Grumpy]

Ditto

X3

 

[jpwalt1987]

Where at in LA are you?? I have used Craigs automotive in Eunice, LA before. They did very good work. PM me and maybe i can shoot you to somewhere closer to you. later, jeremy walters, lake charles, LA

 

[HIPSI]

Jeremy,

I am in North LA, near Monroe. The engine is at Wall2Wall Performance in Livingston, LA. They have a very good reputation in and around Baton Rouge. Maybe just for Chevies???

Thanks.

 

[Alky V6]

Ditto

X4

 

[mikestertwo]

I have run into that on a big block Olds, but never on a 3.8 Buick. X5 on the find another machine shop.

 

[HIPSI]

OK, I get the fact that I need to find another machine shop . I was mainly wondering if the TRW/Speed-Pro forged pistons were really so much heavier than stock?

 

[blown okie]

theses guys obviously have no clue about engine balance, get your stuff and find another shop!!!!

 

[V6gofast]

Balance

In years past when building street V6's with TRW pistons, I would change
the wrist pins to a lighter piece. TRW pistons come with a very heavy wall
pin to match the stock piston weight. Your shop is probably using the wrong
bob weight percentage figure . If they aren't smart enough to figure that out
then you should probably change shops .Also they many not have the special
bob weights required for a V6.

 

[gnxtc2]

Your shop is probably using the wrong
bob weight percentage figure .Also they many not have the special
bob weights required for a V6.

Or too cheap to buy the correct ones.

Find another shop.

Billy T.
gnxtc2@aol.com

 

[Reginald West]

Run. These guys don't know Buicks.

 

[alittlev6]

defetnetly CHANGE machine shops... clueless machinest working on machines!!!! your asking for disaster for your motor!

 

[HIPSI]

Thank you for the replies. I will find another machine shop.