Hey guys. Let me know what you guys think

What would cause this to happen?

Crack??

Cracks??

What would cause this

Crack??

Crack

Cracks??

Crack??

 

The cracks look like normal casting imperfections... but it is hard to tell. The damaged balance shaft bearing looks bad and MAY have caused some cracking directly around that opening. The balance shaft belt being too tight causes that bearing damage.

 

Thanks for the reply. I plan on sleeving it. I’ll get the machine shop to look at it. I was just striping her down.

 

yeah all the cracks look normal. Just surface imperfections from casting.
The balance shaft bearing looks pretty destroyed. If you're gonna get the block sleeved, just get a balance shaft delete kit installed at the same time and you'll have nothing to worry about with that either

 

Thanks man. Looked into the balance shaft delete will definitely do it. Would you happen to know where I could buy a oil pump that’s better then the oem (which tends to fail at high RPM’s) thanks.

 

Agreed that a Balance shaft delete is a good idea on that block, but the rest should just be casting imperfections.

From my recollection, Kaizenspeed/ KS tuning was at least working on better gears, or complete modified oil pumps. The only other place off the top of my head to check with would be 4Piston.

 

Thanks.