Exhaust manifold heat crossover plugs
 

I have decided to block off my heat cross over in my new SBC manifolds. I saw somewhere some neat aluminum plugs that could be file fit into heads.
Where can I find them??

Re: Exhaust manifold heat crossover plugs
 

Much easier to just buy the correct gaskets.

Re: Exhaust manifold heat crossover plugs
 

Well it is written that the thin plate or gasket can burn through.
Edelbrock exhaust crossover Plugs #2733 is what I want and I found it poking around on the net.

Re: Exhaust manifold heat crossover plugs
 

Are you blocking them to save the paint on the intake or for other reasons?

Re: Exhaust manifold heat crossover plugs
 

I have read extensivly on the pros & cons of blocking the crossover. Seems it was put in for smog to warm up the manifold quicker and is needed for some auto choke units,I have a manual choke. A lot is done to cool the carb to prevent vapor lock. Edelbrock RPM Air Gap manifolds have no cross over and states that the cooler manifold creates more HP, also spacers are used on the carb to keep it cool and prevent vapor lock and hard hot starts.
I have an aluminum manifold and it will warm up quick enough and don't want the exhaust gasses in the intake manifold. Will see how it goes...