Posted by Terry [172.69.23.72] on Thursday, November 23, 2017 at 13:39:32 :
In Reply to: Re: Spitfire head on e-bay posted by Greenj [108.162.219.145] on Thursday, November 23, 2017 at 12:53:51 :
I believe it has less of a "dome" over the piston area to achieve a higher compression for added horsepower.
Did I win the prize?