all gaskets, bearings and conrod bolts and head bolts (preferably arp). also if you dont know the condition of the oil pump id replace that aswell as its the heart and soul of your engine, if that fails, all your money is down the pan.

while your at it and the heads off you may as well change the stem seals, also id get the rubber gaskets for the sump and rocker cover and id also get a new thermostat and 2 x oil filters and all the lubricants too while your ordering coz obviously youll be running it in and then doing an oil change.

if you want to be really thorough replace any nuts and bolts youve undone too which might of been your rocker bolts, sump bolts and manifold studs and nuts.

dave.