The exhaust manifold studs are M10x1.25 right?
I tried to get a pic with the studs but its kinda far away.

 

I just bought some new exhaust studs for my truck and I had a difficult time finding the correct length. Nothing at the parts stores was as long as the upper studs that the air injection rail bolts to. I ended up buying genuine Toyota studs. A local shop was able to order them from the dealer at their discount price of $1.63 each stud and $1.49 per nut. Expensive, but worth it in my opinion. The part number for the studs is 90116-10150 and the number for the nuts is 90080-17187. The OEM nuts look to be a lot better for exhaust conditions than the cheap nuts that the auto parts stores sell.

 

they are 10mmx1.25

 

vicoor - what MM are we talking? 40-50-60mm? By the way nice job on the project.

 

i got a set of studs/nuts from LC engineering...mine came with serrated hex flanged nuts instead of nut/washer combo. you may be able to find them on my McMaster-Carr too.

 

according to partsamerica the kit sold is 10 mm 1.25 x 40mm

 

Sure is alot of blue gasket maker all over that timing cover and oil pump. lol

 

My motor is sponsored by blue goo . If this motor leaks, it damn well deserves too.