Originally Posted by
Daveysaff
How much do I need to have to have skimmed off the std 1800 silvertop Zetec pistons to get the compression down to around 8.0-1?
Its gonna be running a std EFI CVH head.
if the head has a standard chamber size 55cc and has not been skimmed u need to skim 0.5mm of the piston crowns