which balancer do i need

[mdiesel]

so my engine was originally an L36. upon disassembly i found the crank and rods were out of spec and needed to be replaced. I have a new crank, and i purchased a set of L32 rods and pistons. Since im running the L32 internals, do i need to also run a balancer and flywheel from an L32/L67 or can i still use my old L36 balancer and flywheel ?

[ssms5411]

I wouldn’t think so I’m running L32 rods and 9.5:1 diamond pistons , might need a crank relearn on it so the computer and sensors are happy. The GM dealership my dad worked at did my rebuild and installed my VS cam . The mechanic that rebuilt mine didn’t have any problems. Only problem I had was the 9.5:1 Diamond forged pistons didn’t come with the wrist pins machined to the pistons, so when he went to rebuild my engine he had to wait on me sending the wrist pins back to Intense Racing to get machined. I overnighted them to Intense and they overnighted them back. 2 day delay. He said he would of been done on day one if it wasn’t for the screw up. The mechanic had a racing team at the drag strip and he’d done engine rebuilds in the parking lot on several occasions on his vehicles. He knew a lot about engines. I think he opened his own shop on the east side of town. My dad’s other main mechanic opened a shop on the east side of town and now has 2 shops, he’s doing very well. And the fly wheel should be fine I went from a flywheel to a flexplate. A M5 to A4 conversion. I before that I did my 1996 M5 to a 2002 M5 didn’t have any issues. Any problems a crank relearn should fix it.

[ssms5411]

I hope I answered your question, my balancer is still a 1996 and the flexplate and flywheel were 1996 after all I’ve done to it. The 02’ A4 was a 2002 and don’t remember the year flexplate.If your putting a m5 in yours it will explode some gears unless your doing a Gforce m5.

[mdiesel]

Appreciate the info. I just finished a bunch of research on this from sites like 3800pro and Chicago garage. I also asked my machinist who did my block work. The thing you don't want to do is mix them up and use a flywheel from an sc motor with a balancer from an n/a motor, or vise versa. The l36/l26 flywheel and balancer are a matched set, as are the l67/l32. Using either set on either engine won't cause catastrophic engine failure, but can shorten the life of your bearings. If you're using l67/l32 rods and pistons you want the l67/l32 flywheel and balancer because their counterweights are matched to the heavier rods and pistons. The l36/l26 flywheel and balancer counterweights are matched to the l36/l26 rods and pistons which are lighter. .

Hope that info helps everyone out.

[ssms5411]

I’m using L32 rods and stock balancer with a different year flexplate, a 02’ auto transmission since 07’ or 08’ 16-17 years and 55k miles no problems.