after reading all the problems memmbers have wit hthe exhaust studs breaking, and my car having bolts in it, should i stick to the bolts or move over to studs when i do my conversion in a few months time?

just get new studs i rekon, thats what i did.

grade 8 studs or better

so is there any reason why not to use bolts?

bolts will work ok, if your not pulling the manifold off all the time and stripping the soft alloy threads. otherwise studs are better because of the way they torque up, that why people replace head bolts with studs.

Quote: Originally Posted by RB30-POWER bolts will work ok, if your not pulling the manifold off all the time and stripping the soft alloy threads. otherwise studs are better because of the way they torque up, that why people replace head bolts with studs. thanks for that thats the prefect answer i needed.... so just any old nut shop will have what i need? ill pull one off a car at a wreckers to the the thread size and stud length and ill just get the highest grade of studs and bolts? thanks again

jus go into any exhaust shop and ask for them, take one from the wreckers if you can, they are about $1.50 each

Quote: Originally Posted by Spool-Up jus go into any exhaust shop and ask for them, take one from the wreckers if you can, they are about $1.50 each exhaust shops normally carry cheap mild steel ones just like oe get grade 8 or better i carry grade 12 instock and dont get ss as they fail

Stronger isn't always better in high heat cycling environments, I know off shore we COULD use Grade 12.9's for Flange faces (HoloChromes etc.) but we dont, we used good old fashion 8.8's as a little more flex is actually beneficial. Go to a good Fasteners shop and tell them what you want, studs with copper crimp nuts I'd go.

Coventry/bursons had the studs I needed in stock for 70c each. They were grade 8