well today i bought a set of itr pistons the oversize ones. What all im i needing to do to make them work correctly in my gsr block also bought the rings and pins.

 

You need to bore your stock block .20 over...You should've just bought the stock size, people bore out there blocks when they are worn uneven or have fixable scaring...But boreing out a block has a down side more heat...Heat will kill your engine! I would sleeve that Block, to protect your investment...And while you are at it, pick up a set of ACL bearings, you might as well.

 

shoot anyone know how fast jhpusa ship? haha i ordered them today imma change my order to stock size.

 

just call.