Header bolts help!!

[Jacob_Royer]

What theads/pitch/length are the header bolts? 3/8x16x1? or are they metric??? please help i need to replace a few!

 

[Jacob_Royer]

M8x1.25 ????

 

[stangman98]

M8x1.25 ????

Correct

 

[Jacob_Royer]

How long? im installing a set of motorsport shorties dont know if that makes any diffrence on the length.

 

[squeak93]

They can be up from 1 to 2 inches. We just put a set of long tubes on and the new ones were considerably shorter than the stockers.