Brake cleaner, just spray everything down real well and let dry. Once everything is clean and dry, take some oil with your fingers and spread around all the internal stuff you can. Not to much just a coating will be fine. This will prevent rust till you put everything back together. You can spin the motor by hand and get the cylinder walls real good. It will smoke like hell on start up, but this will not hurt it at all just burning all that oil off.
98 Trans Am Forged LS7 427 solid roller
25x/25x .705/.706 110 LSA
LME prepped TFS 245's 12:5:1 PUMP GAS!!
Tick/Liberty Faceplated T56 W/Spec Super Twin
MIDWEST FULL FRONT SUSPENSION PKG
Midwest Chassis Fab 9inch 35 spline spool 4:10's
581hp/537tq..................10.332 @ 135