<VV> Smog engine head swap

[ScottyGrover at aol.com]

In a message dated 4/14/2008 12:43:21 P.M. Pacific Daylight Time,  
Sethracer at aol.com writes:

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



I can't argue with you but back in the days when Bowtie dealers still had  
'Vair parts, I got later pop-up pistons to increase the C.R. in my 140 HP  
unit----worked fine.  Maybe the pistons I had were different than the ones  in the 
smog engines.
 
Scotty from Hollyweird



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