sealing exhaust manifold studs
 

I have a 1978 400 bb, does anyone know which exhaust manifold studs go into the water jacket and what is best to seal them?

I would do them all with never sieze which by the way is a sealant alot of people forget that

on a bb all the studs go into water jackets

Wrap them up with alot of teflon tape.

all so put anti-seize compound on the stud threads. tighten the nut to 70-80% of full torque and put 5-6 full heat cycles then take to full torque. but if it leeks be fore that go to full torque.

thanks everyone for all the info

re torque after warm up
 

never sieze is the only way to go, then after a good warm up re torque the bolts.