anti-sieze compound

[Cokoliso]

The sump on my cast iron engine is aluminum. When I reassemble it, should I use anti-sieze compound on the bolt threads? Thanks

[Deere2me]

It's a good idea, but not absolutely necessary, especially given the bolt size yer dealin' with. Smoke em' if ya got em'.

[38racing]

Won't it screw up the torque readings?

[wristpin]

Can affect the torque by as much as 30% according to what I read recently.
Also, iron block, steel bolts, aluminium sump and a copper? based anti seize is ripe for electrolytic corrosion.
The torque issue aside, if you want to guard against seizure I would just use some EP gear oil.