does anyone have to hand the measurement from the sump face to block face of a std cosworth block, didnt want to dry build it to measure piston protrusion , i know the block has been decked to remove wire ring grooves and want to machine the pistons to prevent em hitting the head?

iirc isnt the max piston protrusion .4mm?

any help would save me loads of time

 

Have a look here
http://www.turbosport.co.uk/showthre...the-block-deck