[quickchange]

Had ross racing supply me with set of pistons, ordered stock but for 4" bore, they arrive but on fitting to my b block were 50thou below deck hight insted of 30 thou above which was what std original pistons were , These are 80thou less than stock, Ross pistons claimed that was not there fault ???? so had to stump up for a correct set, So anyone need a set that won,t touch the head V4F would sort of solve your problem , Another engine we did have to fly cut price head above piston some 40 thou as pistons touched on revs, Ended up 50 thou clearance, Its easy to check clearance by torque head , insert a piece of resin core solder in spark plug hole & gently turn engine over , pull solder out & measure the thickness, saves pulling the head if using plastercene. 88 days till. ??