Exhaust manifold bolt thread pitch

[khrispy]

Anybody know the exact thread pitch on the engine-size manifold studs? (should be the same 1G/2G) The guy at my local dealership thought it was a 10 mm x 25 mm x 1.5 pitch. Is this right?

I looked around in the faq/tech section and couldn't find the answer.

Thanks guys!

 

[99gst_racer]

Anybody know the exact thread pitch on the engine-size manifold studs? (should be the same 1G/2G) The guy at my local dealership thought it was a 10 mm x 25 mm x 1.5 pitch. Is this right?

I looked around in the faq/tech section and couldn't find the answer.

Thanks guys!

Are you referring to the studs that fasten the manifold to the head? On my car, there were two different sizes of studs. I believe it is a 7-bolt thing. Are all of your studs the same size?

 

[eclipsegs98911]

I always thought it was 8M X 1.50

 

[cbellsondsm]

on 6bolts they are 8mm X 1.25 for seven bolts there are two m12 X 1.25 on each end of the manifold