The Ford Barn - View Single Post

Purdy Swoft · 08-16-2014, 06:09 PM

This may not pertain to the variation in some of the aluminum Winfield repro combustion chambers but... It seems that back in the mid ninties when Specialty Ford parts in Rosemead CA offered the heads, they were available in both 6 and 7 to 1 ratios. Couldn't this be the reason for the variation is combustion chamber shape ? It seems that grinding away material from an already formed chamber would lower the ratio.

08-16-2014, 06:09 PM	#22
Purdy Swoft Senior Member Join Date: May 2010 Location: Alabama Posts: 8,099	Re: Tod winfield/ weiand head This may not pertain to the variation in some of the aluminum Winfield repro combustion chambers but... It seems that back in the mid ninties when Specialty Ford parts in Rosemead CA offered the heads, they were available in both 6 and 7 to 1 ratios. Couldn't this be the reason for the variation is combustion chamber shape ? It seems that grinding away material from an already formed chamber would lower the ratio.