There is an exhaust leak coming from the passenger side by the exhaust manifold, I cannot exactly pinpoint where it is coming from, I know there is no donut gasket from my little research. Is this a common problem on the 460 big block? A new manifold in only 75 bucks and the gasket is 10, should I just change the manifold or start with the gasket only? Are there any special considerations with this project? Thanks in Advance for your help!
It is common on the 460's to have Exhaust Manifold Leaks. Check All Bolts also, they are known for the Rear Bolts to break.
If you are goung to Replace the Exhaust Manifold/s be sure to have them Surfaced. Use New Factory Bolts.