ORIGINAL: Truckracer
ORIGINAL: ghoffman
I have a 10 year old set of Chevrolet race car heads that have epoxy in the intakes. It is very thin however.
In the race class I competed in for several years, our small block Chevy engines were very restricted on carbs and intake manifold configurtions. But there were no rules governing modifications to manifolds. Some guys spent thousands of $$$$ to have their intake manifolds modified for optimal airflow. They cut the intake manifolds in half lengthwise to get access to the ports then the ports were reconfigured using a combination of tig welding and filled epoxies. After grinding the ports to shape, the manifolds were rewelded back together. Have seen the same thing done in cylinder head intake ports. The point here being that the filled epoxies held up extremely well. I wouldn't hesitate to use them on one of our gas engines.
Can you recomend what brand of epoxies that you would use? Also do you do anything to the surface where the epoxy is applied? Thanks Capt,n