2008 si k20z3 head to k24z3 block
 

what all do i need i have a k20z3 with a cracked block
friend is selling me a k24z3 block for cheap
i know i need the timing chain off the k24 and the head gasket off the k24 but what else do i need to perform this swap
i already droped the motor and and the block is on its way today
any positive input or advise would be greatly appreciated
asap please