THUMPER460, need your input

[Mean88]

I am porting my Gt40p heads. On the exhaust's I have run into a strange problem. I was porting the left side of the port, and I ran into what seems to be a pocket of white sand, or powder. I ported all the other exhaust ports just as far in the same spot and it is solid cast iron. On this one port there is a small inperfection with this white stuff in it. I didnt break into a water jacket, because I probed around in the spot, and it is solid behind the white stuff. It is really strange, I was wondering, since you have ported numerous heads, if this is just a cast inperfection or if it is something more serious. Thanks alot.
Ted

 

[Mean88]

????

 

[willys1]

pfffff???????? ya sure its not a water jacket?

 

[Mean88]

Any Help Would Be Greatly Appriciatted

 

[slowjoe]

its a water jacket

 

[a_turbo_stang]

Sounds like a water jacket.

 

[Michael Yount]

Must be one of those Mexican heads used to smuggle cocaine and heroine into the country.

 

[winder]

Check out this site. Send him a email. He should know.
http://www.jason.fletcher.net/tech/offsite/gt40p.htm

 

[willys1]

Must be one of those Mexican heads used to smuggle cocaine and heroine into the country.

*LOL*

 

[tmoss]

Can you say boat anchor?

 

[slowjoe]

boats afloat