Does anyone know FOR SURE if the b16 uses the 9mm ARP rod bolts like the other b series rods, or if they are 8mm like the website says... I have a hard time believing b16 rods use a different size bolt than a b18b or b18c rod... Thanks!

 

Call ARP or Automotive Engineering.

 

In case anyone else was wondering.....
After pulling apart a B16A1 and comparing to a B18C rod bolt, they are the same size (9mm) but the GSR's is a little longer...
not sure what size the obd1 and obd2 USDM B16 rod bolt is though, could be 8mm...