Exhaust and intake bolt part numbers needed?
 

My rebuild kit came with two different sized studs for the intake and the exhaust ports. I need to know which goes on the intake and which is used for the exhaust . One is shorter than the other.

The part number for the short is 999-062-006-02
The part number for the long is 999-062-008-02

Thanks
Rick
911 1980 3.0

Rick, according to PET, 999 062 006 02 (M8 x 20) is for the exhaust
& 999 062 008 02 (M8 x 25) is for the inlet.

However the part number listed for the exhaust studs for 1980 SC head is 999 062 239 02 (M8 x 30) !!


Andy
'69 911E---------->R

There are both long and short exhaust studs used for 911SC heads ... depending on whether thin or thick exhaust flanges are on the heat exchangers. The proper choice is dictated by which style heat exchangers you have and want to use.