<VV> Smog engine head swap

[Sethracer at aol.com]

In a message dated 4/14/2008 11:48:32 A.M. Pacific Daylight Time,  
ScottyGrover at aol.com writes:

As long  as you have the heads off, why don't you check the thickness of the  
 
head gasket?  Thicker head gaskets can be gotten from Clark's or  Corvair  
Underground in various thicknesses so you can go thicker and  avoid hitting 
the  heads 
with the  pistons.






Actually, if he has the domed (aka pop-up) pistons, he is pretty much  
limited to open chamber heads. The small step in the standard 110 or 140 head  won't 
come close to clearing the raised portion of the piston. If you had 1/8  inch 
spacers, maybe, and you might need more. The real high-compression pistons  
have the raised top only in the chamber area to fill in the chamber volume and  
jack-up the compression ratio. - Seth



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